IPduh - The Internet Tools

<div dir="ltr" style="text-align: left;" trbidi="on"><br /><table border="0" style="height: 46px; width: 444px;"><tbody><br /><tr><td><a class="ipduhcom" href="http://ipduh.com/">IPduh.com</a><span class="hms">   About </span>   <span class="hms">IPduh Internet Tools</span>   <a class="hms" href="http://ipduh.com/about/propaganda">Propaganda</a> <br /><br /><br /></td></tr><br /></tbody></table><br /><div id="par"><br />IPduh is a set of Internet Forencics and Troubleshooting Tools made to work Together.   IPduh may be used as an Internet Forensics Search Engine or a General Purpose Search Engine.   Smart Humans and Aliens researching the internetz on Earth Love IPduh. </div><br /><div id="list1"><br /><a href="http://www.blogger.com/null" name="internet-tools-menu">IPduh Tools</a><br /><br /><a name='more'></a><br /><br /><table style="height: 282px; width: 582px;"><tbody><br /><tr class="pano"> <td><ul id="proti"><br /><li><a class="listhref" href="http://ipduh.com/about/#apropos" title="apropos">apropos</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#ip-report" title="IP address verbose report">ip</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#ip-whois" title="IP address whois lookup">ip/whois</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#cidr" title="IP CIDR calculator">ip/cidr</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#ip-reverse" title="IP address reverse record lookup">ip/reverse or ip/ptr</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#PTR-24" title="PTR /24">ip/ptr/24</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#dnsbl-ip-chk" title="IP address blacklist check">ip/dnsbl</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#ip-scan" title="Scan an IP address for open TCP and UDP ports">ip/srv</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#traceroute" title="Trace an IP route">ip/traceroute</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#ip-dnstrace" title="Trace the delegation path of an IPv4 PTR">ip/dnstrace</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#ip-tor-exit" title="Find out if an IP address is or was a Tor Network Exit.">ip/tor-exit</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#ip-list" title="Create a list of IP numbers.">ip/list</a></li><br /></ul><br /></td><td><ul id="proti"><br /><li><a class="listhref" href="http://ipduh.com/about/#ip-whois-as" title="Autonomous System Number whois lookup">ip/whois/as</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#peeringdb" title="Autonomous System Number PeeringDB lookup">pdb/as</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#as-prefix" title="Autonomous System Number IP prefixes lookup">as/prefix</a></li><br /></ul><br /></td><td><ul id="proti"><br /><li><a class="listhref" href="http://ipduh.com/about/#ipv6" title="IPv6 address Information lookup">ipv6</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#ipv6-whois" title="IPv6 address whois Information lookup">ipv6/whois</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#ipv6-ptr" title="IPv6 address PTR RR lookup">ipv6/ptr</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#ipv6-dnstrace" title="Trace the delegation path of an IPv6 PTR">ipv6/dnstrace</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#ipv6-CIDR" title="Simple IPv6 CIDR block math">ipv6/cidr</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#ipv6-traceroute" title="IPv6 Traceroute">ipv6/traceroute</a></li><br /></ul><br /></td><td><ul id="proti"><br /><li><a class="listhref" href="http://ipduh.com/about/#domain-info" title="Lookup a domain name's A,MX,NS,SOA records and servers' locations.">dns</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#dns-whois" title="DNS whois lookup">dns/whois</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#dns-bl" title="Check if a domain name is listed in a URIBL and if any of its related IP addresses is listed in an IP Black List.">dns/bl</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#dnstrace" title="Trace the DNS delegation path from the root to the authoritative name servers.">dns/trace</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#IDN" title="IDNA conversions">idn</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#to-ACE" title="IDNA Unicode to ACE conversion">idn/ace</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#toUNICODE" title="IDNA ACE to UNICODE conversion">idn/unicode</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#dns-list" title="Create a list of DNS names.">dns/list</a></li><br /></ul><br /></td><td><ul id="proti"><br /><li><a class="listhref" href="http://ipduh.com/about/#anonymity-check">anonymity-check</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#my-geoloc">my/geoloc</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#epoch">epoch</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#decode-URL">url/decode</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#encode-URL">url/encode</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#bouncer">url/bouncer</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#demux-class">demux/class</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#demux">demux</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#demux-list">demux-list</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#torrent-search">Torrent Search</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#gmap">gmap</a></li><br /><li><a class="listhref" href="http://ipduh.com/about/#gmap-tolatlon">gmap/tolatlon</a></li><br /></ul><br /></td> </tr><br /></tbody></table><br /></div><br /><div id="aman-ip-report"><br /><a href="http://www.blogger.com/null" name="ip-report"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ip-report"></a><a class="listhref" href="http://ipduh.com/ip">ip</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />IP address verbose report</h4><br /><hr id="h-ip-report" /><br /><h5><br />input: <br /><br /><br /><br />an IPv4 address in dot-decimal notation<br /><br /><br /><br />output: </h5><br />For non public, special IP addresses a short explanation and a URI to more information.<br /><br /><br /><br />xor<br /><br /><br /><br />For public and special public IP addresses:<br /><br /><ol id="domain-info-man"><br /><li>The IANA designation of the /8 block containing this IP address.</li><br /><li>The Internet Regional Registry of this IP address.</li><br /><li>The Autonomous System Path.</li><br /><li>The IP Prefix.</li><br /><li>The Autonomous System Number.</li><br /><li>The Organization using this IP address. </li><br /><li>The country or city of the organization to which this IP address is assigned.<br /><br /><br /><br />Sometimes the machine(s) using this IP address happen to be in the same country or city.<br /><br /><br /><br />The geographical coordinates of the country or the city.<br /><br /><br /><br />Two Databases made by IPduh and the <a class="listhref" href="http://maxmind.com/">MaxMind</a> database are used to determine the geographical location of the IP address. The databases made by IPduh are based mostly on data provided by the Regional Internet Registries. A <a class="listhref" href="http://ipduh.com/macro/ip/countries/">macro view of the IPduh Country database</a> used is available.<br /><br /><br /><br />The physical location of the machine(s) using this IP address is not guaranteed to be the same as the location suggested by IPduh . </li><br /><li>The name of the IP address ( known as Reverse DNS record ).</li><br /><li>The A record of the IP address name.</li><br /><li>The registered domain name associated with the IP address name.</li><br /><li>The A records registered domain name.</li><br /><li>The dot-decimal IP address entered as a 32b Base 10 Integer.</li><br /></ol><br /><hr id="h-ip-report" /><br /><h4><br />Examples of using ip with GET requests</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ip/?20.19.18.17">http://ipduh.com/ip/?20.19.18.17</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/?10.11.12.13">http://ipduh.com/ip/?10.11.12.13</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/?8.8.8.8">http://ipduh.com/ip/?8.8.8.8</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/?0.4.4.0">http://ipduh.com/ip/?0.4.4.0</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/?147.102.222.230">http://ipduh.com/ip/?147.102.222.230</a></li><br /></ul><br /></div><br /><div id="aman-ip-dnstrace"><br /><a href="http://www.blogger.com/null" name="ip-dnstrace"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ip-dnstrace"></a><a class="listhref" href="http://ipduh.com/ip/dnstrace">ip/dnstrace</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br /></h4><br /><hr id="h-ip-dnstrace" /><br /><h5><br />input: <br /><br /><br /><br />A pubic IPv4 address <br /><br /><br /><br />output:</h5><br />The delegation path from the root Name Servers to the Authoritative DNS Netwok Servers of the PTR. <br /><br /><hr id="h-ip-dnstrace" /><br /><h4><br />Examples of using ip/dnstrace.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ip/dnstrace/?89.99.109.119">http://ipduh.com/ip/dnstrace/?89.99.109.119</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/dnstrace/?99.100.101.102">http://ipduh.com/ip/dnstrace/?99.100.101.102</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/dnstrace/?24.48.72.96">http://ipduh.com/ip/dnstrace/?24.48.72.96</a></li><br /></ul><br /></div><br /><div id="aman-ip6-dnstrace"><br /><a href="http://www.blogger.com/null" name="ipv6-dnstrace"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ipv6-dnstrace"></a><a class="listhref" href="http://ipduh.com/ipv6/dnstrace">ipv6/dnstrace</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br /></h4><br /><hr id="h-ip6-dnstrace" /><br /><h5><br />input: <br /><br /><br /><br />A pubic IPv6 address <br /><br /><br /><br />output:</h5><br />The delegation path from the root Name Servers to the Authoritative DNS Netwok Servers of the IPv6 address PTR. <br /><br /><hr id="h-ip6-dnstrace" /><br /><h4><br />Examples of using ip/dnstrace.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ipv6/dnstrace/?2001:beef:0000:fee5::">http://ipduh.com/ipv6/dnstrace/?2001:beef:0000:fee5::</a></li><br /><li><a class="listhref" href="http://ipduh.com/ipv6/dnstrace/?2a00:1450::f00">http://ipduh.com/ipv6/dnstrace/?2a00:1450::f00</a></li><br /><li><a class="listhref" href="http://ipduh.com/ipv6/dnstrace/?2001:470::">http://ipduh.com/ipv6/dnstrace/?2001:470::</a></li><br /></ul><br /></div><br /><div id="aman-ip-tor-exit"><br /><a href="http://www.blogger.com/null" name="ip-tor-exit"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ip-tor-exit"></a><a class="listhref" href="http://ipduh.com/ip/tor-exit">ip/tor-exit</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br /></h4><br /><hr id="h-ip-tor-exit" /><br /><h5><br />input: <br /><br /><br /><br />A unicast IPv4 address <br /><br /><br /><br />output:</h5><br /><ol id="domain-info-man"><br /><li> If the IPv4 address entered is listed on the <a class="listhref" href="http://ipduh.com/about/#ipduh-tor-exit-list">IPduh Tor Exit List</a>, the first and the last times it was seen used as a Tor Exit. </li><br /><li> If the IPv4 address entered is listed on the <a class="listhref" href="http://ipduh.com/about/#tor-dan-uk"> tor.dan.me.uk DNSBL </a> ( a list of currently used Tor Exits ), some information regarding its Tor Network characteristics. </li><br /></ol><br /><hr id="h-ip-tor-exit" /><br />The lookups performed by <a class="listhref" href="http://ipduh.com/ip/tor-exit">ip/tor-exit</a> are performed by <a class="listhref" href="http://ipduh.com/about/#dnsbl-ip-chk">ip/dnsbl</a> as well.<br /><br /><hr id="h-ip-tor-exit" /><br /><h4><br />Examples of using ip/tor-exit.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ip/tor-exit/?151.66.94.134">http://ipduh.com/ip/tor-exit/?151.66.94.134</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/tor-exit/?108.4.208.93">http://ipduh.com/ip/tor-exit/?108.4.208.93</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/tor-exit/?220.255.2.49">http://ipduh.com/ip/tor-exit/?220.255.2.49</a></li><br /></ul><br /></div><br /><div id="aman-dns-list"><br /><a href="http://www.blogger.com/null" name="dns-list"> </a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="dns-list"></a><a class="listhref" href="http://ipduh.com/dns/list">dns/list</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />Create a List of DNS names </h4><br /><hr id="h-dns-list" /><br /><h5><br />input: <br /><br /><br /><br />DNS names <br /><br /><br /><br />ipduh-list built-in variables and punctuation marks: <br /><br /><a class="listhref_l" href="http://ipduh.com/about/#syntax-list">&list=</a>   <a class="listhref_l" href="http://ipduh.com/about/#syntax-tri-dash">---</a>   <a class="listhref_l" href="http://ipduh.com/about/#syntax-comma"> , </a>   <a class="listhref_l" href="http://ipduh.com/about/#syntax-title">&title=</a>   <a class="listhref_l" href="http://ipduh.com/about/#syntax-semicolon">;</a>   <a class="listhref_l" href="http://ipduh.com/about/#www-1">&www=1</a>   <a class="listhref_l" href="http://ipduh.com/about/#sc-1">&sc=1</a>   <a class="listhref_l" href="http://ipduh.com/about/#sa-1">&sa=1</a> <br /><br /><br /><br />comments: <br /><br />All listed strings of characters not Identified by dns/list as DNS names are printed. <br /><br />A ; stops list processing and hides all characters following it. <br /><br /><br /><br />output: </h5><br />A list of DNS names along with links to the appropriate IPduh tools and the URL producing the list. <br /><br /><hr id="h-dns-list" /><br /><h4><br />Examples of using dns/list.</h4><br /><ul><br /><li> <a class="listhref" href="http://ipduh.com/dns/list/?&title=Authoritative%20DNS%20servers%20with%20most%20domains%20-%20Large%20Domain%20Registers%20-%20DNS%20hosts%0A&list=%0Adomaincontrol.com%20,%20Wild%20West%20Domains%20,_,%0Aname-services.com%20,_,%0Aworldnic.com,%20Network%20Solutions%20LLC%20,_,%0A1and1.com,_,%0Arzone.de,_,%0Aregister.com,_,%0Aregistrar-servers.com,_,%0Asedoparking.com,_,%0Ahostgator.com,_,%0Adreamhost.com,_,%0Abluehost.com,_,%0Ayahoo.com,_,%0Aschlund.de,_,%0Aovh.net,_,%0Ainternettraffic.com,_,%0Ahichina.com,_,%0Acashparking.com,_,%0Adsredirection.com,_,%0Awebsitewelcome.com,_,%0Amdnsservice.com,_,%0Axincache.com,_,%0Aabove.com,_,%0Aname.com,_,%0Amonikerdns.net,_,%0Ahostmonster.com,_,%0Anameresolve.com,_,%0Agandi.net,_,%0Audagdns.net,_,%0A123-reg.co.uk,_,%0Anamebrightdns.com,_,%0Adnsnameserver.org,_,%0Adnspod.net,_,%0A1and1.co.uk,_,%0Ahosteurope.de,_,%0Afabulous.com,_,%0Avalue-domain.com,_,%0Alivedns.co.uk,_,%0Axserver.jp,_,%0Avpweb.com,_,%0Amydomain.com,_,%0Afastpark.net,_,%0Amediatemple.net,_,%0Atechnorail.com,_,%0Anetfirms.com,_,%0Abuydomains.com,_,%0Aatt-webhosting.com,_,%0Aschlundtech.de,_,%0A1and1.fr,_,%0Athis-domain-for-sale.com,_,%0Anamespace4you.de,_,%0Adnsmadeeasy.com,_,%0Akasserver.com,_,%0Awordpress.com,_,%0Aorderbox-dns.com,_,%0Amarkmonitor.com,_,%0Arackspace.com,_,%0Adns-diy.com%0A"> DNS hosts </a> </li><br /><li> <a class="listhref" href="http://ipduh.com/dns/list/?&title=High%20Traffic%20Sites%0A&list=%0Agoogle.com,%0Afacebook.com,%0Ayoutube.com,%0Ayahoo.com,%0Abaidu.com,%0Awikipedia.org,%0Alive.com,%0Aqq.com,%0Alinkedin.com,%0Atwitter.com,%0Ablogspot.com,%0Agoogle.co.in,%0Ataobao.com,%0Asina.com.cn,%0Agoogle.com.hk,%0Amsn.com,%0Awordpress.com,%0Abing.com,%0Agoogle.de,%0Ayandex.ru,%0Aebay.com,%0Agoogle.co.jp,%0Agoogle.fr,%0A163.com,%0Aweibo.com,%0Agoogle.com.br,%0Asoso.com,%0Agoogleusercontent.com,%0Amail.ru,%0Atumblr.com,%0Asohu.com,%0Avk.com,%0Agoogle.ru,%0Acraigslist.org,%0Agoogle.es,%0Agoogle.it,%0At.co,%0Amicrosoft.com,%0Aapple.com,%0Apinterest.com,%0Atudou.com,%0Aamazon.com"> High Traffic Sites </a> </li><br /></ul><br /></div><br /><div id="aman-ip-list"><br /><a href="http://www.blogger.com/null" name="ip-list"> </a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ip-list"></a><a class="listhref" href="http://ipduh.com/ip/list">ip/list</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />Create a List of IP numbers </h4><br /><hr id="h-ip-list" /><br /><h5><br />input: <br /><br /><br /><br />IP numbers: <br /><br />[ IPv4 address | IPv6 address | IPv4 CIDR block | IPv6 CIDR block | Autonomous System Number ] <br /><br /><br /><br />ipduh-list built-in variables and punctuation marks: <br /><br /><a class="listhref_l" href="http://ipduh.com/about/#syntax-list">&list=</a>   <a class="listhref_l" href="http://ipduh.com/about/#syntax-em-dash">--</a>   <a class="listhref_l" href="http://ipduh.com/about/#syntax-comma"> , </a>   <a class="listhref_l" href="http://ipduh.com/about/#syntax-title">&title=</a>   <a class="listhref_l" href="http://ipduh.com/about/#syntax-semicolon">;</a> <br /><br /><br /><br />comments: <br /><br />All listed strings of characters not Identified by ip/list as IP numbers are printed. <br /><br />A ; stops list processing and hides all characters following it. <br /><br /><br /><br />output: </h5><br />A list of IP numbers along with links to the appropriate IPduh tools and the URL producing the list. <br /><br /><hr id="h-ip-list" /><br /><h4><br />Examples of using ip/list.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ip/list/?list=%0A8.4.2.1--%0A16.8.4.2/32--%0A32.16.8.4--%0A666--%0AAS9999--%0A2a00:1450:4001:c01:0:0:0:79--%0A2A00:0000::/12"> http://ipduh.com/ip/list/?list=%0A8.4.2.1--%0A16.8.4.2/32--%0A32.16.8.4--%0A666--%0AAS9999--%0A2a00:1450:4001:c01:0:0:0:79--%0A2A00:0000::/12 </a> </li><br /><li><a class="listhref" href="http://ipduh.com/ip/list/?&title=Public%20DNS%20caching%20servers%0A&list=%0AGoogle--%0A8.8.8.8--8.8.4.4--2001:4860:4860::8888--2001:4860:4860::8844--.--%0AOpenDNS--%0A208.67.222.222--208.67.220.220--%0A--.--%0ANorton--%0A198.153.192.40--198.153.194.40--%0A--Warns%20about%20and%20censors%20DNS%20names%20used%20by%20malicious%20sites--%0A198.153.192.50--198.153.194.50--%0A--Warns%20about%20and%20censors%20DNS%20names%20used%20by%20malicious%20or%20Pornography%20sites%20--%0A198.153.192.60--198.153.194.60--%0A--Warns%20about%20and%20censors%20DNS%20names%20used%20by%20malicious%20or%20Pornography%20or%20Non-Family-Friendly%20sites%0A--.--%0AVerizon--%0A4.2.2.1--4.2.2.2--4.2.2.3--4.2.2.4--4.2.2.5--4.2.2.6--%0A--.--%0ALevel3--%0A209.244.0.3--209.244.0.4%0A--.--%0AComodo--%0A8.26.56.26--8.20.247.20%0A--.--%0ACisco--%0A64.102.255.44--128.107.241.185%0A--.--"> http://ipduh.com/ip/list/?&title=Public%20DNS%20caching%20servers%0A&list=%0AGoogle--%0A8.8.8.8--8.8.4.4--2001:4860:4860::8888--2001:4860:4860::8844 --.--%0AOpenDNS--%0A208.67.222.222--208.67.220.220--%0A--.-- %0ANorton--%0A198.153.192.40--198.153.194.40--%0A --Warns%20about%20and%20censors%20DNS%20names%20used%20by%20malicious%20sites-- %0A198.153.192.50--198.153.194.50--%0A --Warns%20about%20and%20censors%20DNS%20names%20used%20by%20malicious%20 or%20Pornography%20sites%20-- %0A198.153.192.60--198.153.194.60--%0A-- Warns%20about%20and%20censors%20DNS%20names%20used%20by%20malicious%20 or%20Pornography%20or%20Non-Family-Friendly%20sites%0A--.-- %0AVerizon--%0A4.2.2.1--4.2.2.2--4.2.2.3--4.2.2.4--4.2.2.5--4.2.2.6--%0A--.-- %0ALevel3--%0A209.244.0.3--209.244.0.4%0A--.-- %0AComodo--%0A8.26.56.26--8.20.247.20%0A--.-- %0ACisco--%0A64.102.255.44--128.107.241.185%0A--.-- </a> </li><br /><li><a class="listhref" href="http://ipduh.com/ip/list/?title=Special%20Purpose%20IPv4%0A&list=%0A224.0.0.0/24--Multicast%20IPv4%20assignments%20-Former%20D--.--%0A240.0.0.0/4--Reserved%20for%20future%20addressing%20modes%20-Former%20E--.--%0A0.0.0.0/8--The%20this%20Network--.--%0A10.0.0.0/8--Used%20in%20Private%20Networks--.--%0A127.0.0.0/8--Host%20loopback%20address%20space--.--%0A172.16.0.0/12--Used%20in%20Private%20Networks--.--%0A198.18.0.0/15--Allocated%20for%20use%20in%20benchmark%20tests%20of%20network%20interconnect%20devices--.--%0A169.254.0.0/16--The%20Link-Local%20block--.--%0A192.168.0.0/16--Used%20in%20Private%20Networks--.--%0A192.0.0.0/24--reserved%20for%20IETF%20protocol%20assignments--.--%0A192.0.2.0/24--TEST-NET-1%20for%20use%20in%20documentation%20and%20example%20code--.--%0A198.51.100.0/24--TEST-NET-2%20for%20use%20in%20documentation%20and%20example%20code--.--%0A203.0.113.0/24--TEST-NET-3%20for%20use%20in%20documentation%20and%20example%20code--.--%0A192.88.99.0/24--6to4%20relay%20anycast%20addresses"> http:/ip/list/?title=Special Purpose IPv4%0A&list=%0A224.0.0.0/24--Multicast IPv4 assignments -Former D--.--%0A240.0.0.0/4--Reserved for future addressing modes -Former E--.--%0A0.0.0.0/8--The this Network--.--%0A10.0.0.0/8--Used in Private Networks--.--%0A127.0.0.0/8--Host loopback address space--.--%0A172.16.0.0/12--Used in Private Networks--.--%0A198.18.0.0/15--Allocated for use in benchmark tests of network interconnect devices--.--%0A169.254.0.0/16--The Link-Local block--.--%0A192.168.0.0/16--Used in Private Networks--.--%0A192.0.0.0/24--reserved for IETF protocol assignments--.--%0A192.0.2.0/24--TEST-NET-1 for use in documentation and example code--.--%0A198.51.100.0/24--TEST-NET-2 for use in documentation and example code--.--%0A203.0.113.0/24--TEST-NET-3 for use in documentation and example code--.--%0A192.88.99.0/24--6to4 relay anycast addresses </a> </li><br /><li> </li><br /></ul><br /></div><br /><div id="aman-ipduh-list-syntax"><br /><a href="http://www.blogger.com/null" name="ipduh-list-syntax"> </a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ipduh-list-syntax">IPduh List Syntax    </a><a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a>   <a class="listhref" href="http://ipduh.com/about/#ip-list">about ip/list</a>   <a class="listhref" href="http://ipduh.com/about/#dns-list">about dns/list</a>   <a class="listhref" href="http://ipduh.com/about/#demux-list">about demux/list</a> </h4><br />IPduh list syntax is used to create lists with <a class="listhref" href="http://ipduh.com/ip/list">ip/list</a> , <a class="listhref" href="http://ipduh.com/dns/list">dns/list</a> , and <a class="listhref" href="http://ipduh.com/demux/list">demux/list</a> and it is a simple way of denoting lists in a form text area or a URL. <br /><br /><br /><br />HTML tags are not allowed. <br /><br />URL Enconding and URL decoding are handled by the list tools. <br /><br /><hr id="h-ipduh-list" /><br /><ul><br /><li> <a href="http://www.blogger.com/null" name="syntax-title"><span class="syntax">&title=</span></a> is optional and it is used to set the list title <br /><br />eg: <a class="listhref" href="http://ipduh.com/dns/list/?&title=This%20an%20one%20item%20list&list=sixxs.net">http://ipduh.com/dns/list/?&title=This an one item list&list=sixxs.net</a><br /><br /><br /><br />If <span class="syntax">&title=</span> is omitted then the title is set to 'First List Element - Last List Element' <br /><br />eg: <a class="listhref" href="http://ipduh.com/dns/list/?&list=twitter.com,linkedin.com,facebook.com">http://ipduh.com/dns/list/?&list=twitter.com,linkedin.com,facebook.com</a> </li><br /><li> <a href="http://www.blogger.com/null" name="syntax-list"><span class="syntax">&list=</span></a> is needed and it is used to set a list <br /><br />eg:<a class="listhref" href="http://ipduh.com/dns/list/?&list=blogspot.com--tumblr.com--wordpress.com">http://ipduh.com/dns/list/?&list=blogspot.com--tumblr.com--wordpress.com</a><br /><br /><br /><br />Omitting or not setting <span class="syntax">&list=</span> results to an empty list error <br /><br />eg:<a class="listhref" href="http://ipduh.com/dns/list/?&title=I%20am%20not%20a%20list">http://ipduh.com/dns/list/?&title=I am not a list</a> <br /><br />eg:<a class="listhref" href="http://ipduh.com/dns/list/?&title=I%20am%20a%20emptly%20list&list=">http://ipduh.com/dns/list/?&title=I am an empty list&list=</a> </li><br /><li> <a href="http://www.blogger.com/null" name="syntax-comma"><span class="syntax">,</span></a> is used as a list item delimeter <br /><br />eg: <a class="listhref" href="http://ipduh.com/dns/list/?&list=youtube.com,v.qq.com">http://ipduh.com/dns/list/?&list=youtube.com,v.qq.com</a> </li><br /><li> <a href="http://www.blogger.com/null" name="syntax-em-dash"><span class="syntax">--</span></a> is used as a list item delimeter on ip lists and it is equivalent and interchangeable with <span class="syntax">,</span> <br /><br />eg: <a class="listhref" href="http://ipduh.com/ip/list/?&list=1.2.3.4--2.4.8.16--3.6.9.12--3.9.27.81">http://ipduh.com/ip/list/?&list=1.2.3.4--2.4.8.16--3.6.9.12--3.9.27.81</a> </li><br /><li> <a href="http://www.blogger.com/null" name="syntax-tri-dash"><span class="syntax">---</span></a> it is used as a list item delimeter and it is equivalent and interchangeable with <span class="syntax">,</span> <br /><br />eg: <a class="listhref" href="http://ipduh.com/dns/list/?&list=google.com.hk---google.co.in---google.de---google.co.uk---google.co.jp">http://ipduh.com/dns/list/?&list=google.com.hk---google.co.in---google.de---google.co.uk---google.co.jp</a> </li><br /><li> <a href="http://www.blogger.com/null" name="syntax-semicolon"><span class="syntax"> ;</span></a> is used to stop list processing and hide whatever follows <br /><br />eg: <a class="listhref" href="http://ipduh.com/ip/list/?&list=4.2.2.2--8.8.8.8;hidden--nothing--niente-testing">http://ipduh.com/ip/list/?&list=4.2.2.2--8.8.8.8;hidden--nothing--niente-testing</a> </li><br /><li> <a href="http://www.blogger.com/null" name="www-1"><span class="syntax">&www=1</span></a> is optional and it is used to put external links for all DNS names on the list. The external links are checked by the <a class="listhref" href="http://ipduh.com/about/#bouncer">Bouncer</a>. eg: <a class="listhref" href="http://ipduh.com/dns/list/?&title=example%20list&www=1&list=example.com,example.net,example.org">http://ipduh.com/dns/list/?&title=example%20list&www=1&list=example.com,example.net,example.org</a> </li><br /><a href="http://www.blogger.com/null" name="sc-1"><span class="syntax">&sc=1</span></a> optional , puts the count of listed items. <br /><br /><a href="http://www.blogger.com/null" name="sa-1"><span class="syntax">&sa=1</span></a> optional , puts one advertisement. <br />eg: <a class="listhref" href="http://ipduh.com/dns/list/?&title=Web%20Advertizing%20CPC%20CPA%20RTB%20%20sites-networks%0A&www=1%0A&sa=1%0A&sc=1%0A&list=%0Azedo.com,optmd.com,infusionsoft.com,%0Awigetmedia.com,doubleclick.com,clickbank.com,mgid.com,adsupply.com,7search.com,adonnetwork.com,admedia.com,adf.ly,jemamedia.com,lean.com,sitescout.com,%0A,%0Arocketprofit.com,maxbounty.com,adknowledge.com,theepicmediagroup.com,linkshare.com,%0Ainstantdollarz.com,clickbooth.com,clickxchange.com,shareasale.com,cj.com,linkmo.com,searchcactus.com,marketleverage.com,adfish.com,affiliateer.com,affiliatefuture.com,%0Aaffiliatewindow.com,checkmystats.com,clixgalore.com,commissionsoup.com,cyberbounty.com,%0Adarkblue.com,mediawhiz.com,fluxads.com,linkconnector.com,linkshare.com,offersquest.com,%0Apaidonresults.com,performics.com,rextopia.com,cwcaffiliates.com,motiveinteractive.com,%0Amediatrust.com,directleads.com,cpalead.com,convert2media.com,markethealth.com,neverblue.com,pepperjam.com,%0A,%0Aretailmenot.com,coupons.com">Web Ads Sites</a><br /></ul><br /><br /><br /><br /><br />Every list item not identified as an IP number by <a class="listhref" href="http://ipduh.com/ip/list">ip/list</a> , a DNS name by <a class="listhref" href="http://ipduh.com/dns/list">dns/list</a> , and an IP number or a DNS name or a URI by <a class="listhref" href="http://ipduh.com/demux/list">demux/list</a> will be printed without IPduh links. This way comments and almost empty lines may be put in a list.<br /><br />eg:<a class="listhref" href="http://ipduh.com/dns/list/?&list=%60---google.fr---Google%20in%20French---.---google.gr---Google%20in%20Greek---%27">http://ipduh.com/dns/list/?&list=`---google.fr---Google in French---.---google.gr---Google in Greek---'</a> </div><br /><div id="aman-ip6-dnstrace"><br /><a href="http://www.blogger.com/null" name="ipv6-dnstrace"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ipv6-dnstrace"></a><a class="listhref" href="http://ipduh.com/ipv6/dnstrace">ipv6/dnstrace</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br /></h4><br /><hr id="h-ip6-dnstrace" /><br /><h5><br />input: <br /><br /><br /><br />A pubic IPv6 address <br /><br /><br /><br />output:</h5><br />The delegation path from the root Name Servers to the Authoritative DNS Netwok Servers of the IPv6 address PTR. <br /><br /><hr id="h-ip6-dnstrace" /><br /><h4><br />Examples of using ip/dnstrace.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ipv6/dnstrace/?2001:beef:0000:fee5::">http://ipduh.com/ipv6/dnstrace/?2001:beef:0000:fee5::</a></li><br /><li><a class="listhref" href="http://ipduh.com/ipv6/dnstrace/?2a00:1450::f00">http://ipduh.com/ipv6/dnstrace/?2a00:1450::f00</a></li><br /><li><a class="listhref" href="http://ipduh.com/ipv6/dnstrace/?2001:470::">http://ipduh.com/ipv6/dnstrace/?2001:470::</a></li><br /></ul><br /></div><br /><div id="aman-dns-trace"><br /><a href="http://www.blogger.com/null" name="dnstrace"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="dnstrace"></a><a class="listhref" href="http://ipduh.com/dns/trace">dns/trace</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br /></h4><br /><hr id="h-dns-trace" /><br /><h5><br />input: <br /><br /><br /><br />A DNS domain name <br /><br /><br /><br />output:</h5><br />The delegation path from the root Name Servers to the Authoritative Name Servers of the DNS name. <br /><br /><hr id="h-dns-trace" /><br /><h4><br />Examples of using ip/dnstrace.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/dns/trace/?forecast.uoa.gr">http://ipduh.com/dns/trace/?forecast.uoa.gr</a></li><br /><li><a class="listhref" href="http://ipduh.com/dns/trace/?www.ci.tuwien.ac.at">http://ipduh.com/dns/trace/?www.ci.tuwien.ac.at</a></li><br /><li><a class="listhref" href="http://ipduh.com/dns/trace/?axion.physics.ubc.ca">http://ipduh.com/dns/trace/?axion.physics.ubc.ca</a></li><br /></ul><br /></div><br /><div id="aman-ip6-cidr"><br /><a href="http://www.blogger.com/null" name="ipv6-CIDR"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ipv6-CIDR"></a><a class="listhref" href="http://ipduh.com/ipv6/cidr">ipv6/cidr</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br /></h4><br /><hr id="h-ip6-cidr" /><br /><h5><br />input: <br /><br /><br /><br />An IPv6 CIDR block in CIDR notation <br /><br /><br /><br />output:</h5><br /><ol id="domain-info-man"><br /><li>Whether the IPv6 CIDR block entered is valid. </li><br /><li>If the IPv6 CIDR block entered is invalid a correction is attempted. </li><br /><li>The Type of the IPv6 network address.</li><br /><li>The IPv6 Range. Network Address - Broadcast Address.</li><br /><li>The Number of IPv6 addresses in the CIDR block.</li><br /></ol><br /><hr id="h-ip6-cidr" /><br /><h4><br />Examples of using ipv6/cidr</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ipv6/cidr/?2001:beef::/16">2001:beef::/16</a></li><br /><li><a class="listhref" href="http://ipduh.com/ipv6/cidr/?2001:2dab::/22">2001:2dab::/22</a></li><br /><li><a class="listhref" href="http://ipduh.com/ipv6/cidr/?2001:ba11:5::/64">2001:ba11:5::/64</a></li><br /></ul><br /></div><br /><div id="aman-ip6-tracert"><br /><a href="http://www.blogger.com/null" name="ipv6-traceroute"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ipv6-traceroute"></a><a class="listhref" href="http://ipduh.com/ipv6/traceroute">ipv6/traceroute</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br /></h4><br /><hr id="h-ip6-tracert" /><br /><h5><br />input: <br /><br /><br /><br />An IPv6 address <br /><br /><br /><br />output:</h5><br />If the IPv6 address entered is a routable Unicast Internet IPv6 address, the intermediate routers along the path from an IPduh Internet Host to the Internet host using the IPv6 address entered. For each of the routers in the path ipv6/traceroute attempts to output their reverse records, their IPv6 addresses, the Autonomous Systems in which they belong, and the time it took them to respond to the traceroute probes. <br /><br /><hr id="h-ip6-tracert" /><br /></div><br /><div id="aman-ipv6"><br /><a href="http://www.blogger.com/null" name="ipv6"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ipv6"></a><a class="listhref" href="http://ipduh.com/ipv6">ipv6</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />IPv6 address basic information lookup</h4><br /><hr id="h-ipv6" /><br /><h5><br />input: <br /><br /><br /><br />An IPv6 Address <br /><br /><br /><br />output:</h5><br /><ol id="domain-info-man"><br /><li>The type of the IPv6 address entered, URIs to more information and the appropriate RFC, if needed.</li><br /><li>Allocation Prefix , Status , Responsible RIR , Allocation Date.</li><br /><li>The short form of the IPv6 address entered. </li><br /><li>The long form of IPv6 address entered Hexadecimal and Binary.</li><br /><li>The unsigned integer number represantating the IPv6 address entered.</li><br /><li> The Country in which the Organization using this IPv6 address is located. <br /><br /><br /><br />The machine(s) using this IPv6 address may not be on the same country. <br /><br /><br /><br />The Location is determined by the Regional Internet Registries data and a macro view of the <a class="listhref" href="http://ipduh.com/macro/ip/countries">IPv6 addresses per country</a> is also available. </li><br /></ol><br /><hr id="h-ipv6" /><br /><h4><br />Examples of using ipv6.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ipv6/?1A7E::FEE5">http://ipduh.com/ipv6/?1A7E::FEE5</a></li><br /><li><a class="listhref" href="http://ipduh.com/ipv6/?2011:11FE:15:A:BEAC:4::">http://ipduh.com/ipv6/?2011:11FE:15:A:BEAC:4::</a></li><br /><li><a class="listhref" href="http://ipduh.com/ipv6/?2012:11FE:15:C001::">http://ipduh.com/ipv6/?2012:11FE:15:C001::</a></li><br /></ul><br /></div><br /><div id="aman-as-prefix"><br /><a href="http://www.blogger.com/null" name="as-prefix"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="as-prefix"></a><a class="listhref" href="http://ipduh.com/as/prefix">as/prefix</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />IP prefixes originating an Autonomous System</h4><br /><hr id="h-as-prefix" /><br /><h5><br />input: <br /><br /><br /><br />An Autonomous System Number <br /><br /><br /><br />output:</h5><br />The IP prefixes originating the autonomous system<br /><br /><hr id="h-as-prefix" /><br /><h4><br />Examples of using as/prefix.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/as/prefix/?6799">http://ipduh.com/as/prefix/?6799</a></li><br /><li><a class="listhref" href="http://ipduh.com/as/prefix/?16509">http://ipduh.com/as/prefix/?16509</a></li><br /><li><a class="listhref" href="http://ipduh.com/as/prefix/?11643">http://ipduh.com/as/prefix/?11643</a></li><br /></ul><br /><hr id="h-as-prefix" /><br />Still in Beta release --Not consistent Results. <br /><br /><br /><br />Glitch - Bug: If you get "I did not find IP prefixes originating from 'AS#'" for an autonomous system number with prefixes in the IPduh Database, try to refresh the page. <br /><br /><br /></div><br /><div id="aman-ipv6-whois"><br /><a href="http://www.blogger.com/null" name="ipv6-whois"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ipv6-whois"></a><a class="listhref" href="http://ipduh.com/ipv6/whois">ipv6/whois</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />IPv6 address whois information lookup</h4><br /><hr id="h-ipv6-whois" /><br /><h5><br />input: <br /><br /><br /><br />An IPv6 Address <br /><br /><br /><br />output:</h5><br />For non Global Unicast IPv6 addresses,<br /><br /><br /><br />a short explanation and a URI to more information or the apprpopriate RFC.<br /><br /><br /><br />For Global Unicast IPv6 addresses, <br /><br /><ol id="domain-info-man"><br /><li>The parent IANA block.</li><br /><li>The IANA status. </li><br /><li>The Regional Internet Registry.</li><br /><li>The whois server.</li><br /><li>The whois information for the owner of the block.</li><br /></ol><br /><hr id="h-ipv6-whois" /><br /><h4><br />Examples of using ipv6.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ipv6/whois/?2001:2bad:c01d::f00d">http://ipduh.com/ipv6/?2001:2bad:c01d::f00d</a></li><br /><li><a class="listhref" href="http://ipduh.com/ipv6/?2001:234:11FE:15:C001::">http://ipduh.com/ipv6/?2001:234:11FE:15:C001::</a></li><br /></ul><br /></div><br /><div id="aman-ipv6-ptr"><br /><a href="http://www.blogger.com/null" name="ipv6-ptr"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ipv6-ptr"></a><a class="listhref" href="http://ipduh.com/ipv6/ptr">ipv6/ptr</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />IPv6 address PTR ( Reverse DNS name ) lookup</h4><br /><hr id="h-ipv6-ptr" /><br /><h5><br />input: <br /><br /><br /><br />An IPv6 address <br /><br /><br /><br />output:</h5><br />The PTR of the IPv6 address entered. <br /><br /><hr id="h-ipv6-ptr" /><br /><h4><br />Examples of ipv6/ptr.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ipv6/ptr/?2001:7f8::3b41:0:2">http://ipduh.com/ipv6/?2001:7f8::3b41:0:2</a></li><br /></ul><br /></div><br /><div id="aman-ptr-24"><br /><a href="http://www.blogger.com/null" name="PTR-24"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="PTR-24"></a><a class="listhref" href="http://ipduh.com/ip/ptr/24">ip/ptr/24</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />The PTR of all IP addresses in a /24 network</h4><br /><hr id="h-ptr-24" /><br /><h5><br />input: <br /><br /><br /><br />A pubic IPv4 address or a /24 CIDR or the three first Bytes of an IP address in decimal dotted notation<br /><br /><br /><br />output:</h5><br />The PTR ( Reverse DNS names ) for all the IP addresses in the /24 ( C ) Network along with pointers to more information. <br /><br /><hr id="h-ptr-24" /><br /><h4><br />Examples of using ip/ptr/24 .</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ip/ptr/24/?2.4.4.2">http://ipduh.com/ip/ptr/24/?2.4.4.2</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/ptr/24/?77.72.230">http://ipduh.com/ip/ptr/24/?77.72.230</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/ptr/24/?140.186.70.0/24">http://ipduh.com/ip/ptr/24/?140.186.70.0/24</a></li><br /></ul><br /></div><br /><div id="aman-idn-ace"><br /><a href="http://www.blogger.com/null" name="to-ACE"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="to-ACE"></a><a class="listhref" href="http://ipduh.com/idn/ace">idn/ace</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />IDNA - Unicode to ACE convertion</h4><br /><hr id="h-to-ace" /><br /><h5><br />input: <br /><br /><br /><br />An International Domain Name in Unicode.<br /><br /><br /><br />output:</h5><br />An ASCII Comptible Encoded string of characters. <br /><br /><hr id="h-to-ace" /><br /><h4><br />Examples of using idn/ace.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/idn/ace/?%E8%99%9A%E6%8B%9F%E5%85%89%E9%A9%B1.%E4%B8%AD%E5%9B%BD">http://ipduh.com/idn/ace/?虚拟光驱.中国</a></li><br /><li><a class="listhref" href="http://ipduh.com/idn/ace/?%E5%A4%A9%E5%B9%B3.%E4%B8%AD%E5%9B%BD">http://ipduh.com/idn/ace/?天平.中国</a></li><br /><li><a class="listhref" href="http://ipduh.com/idn/ace/?%E3%82%B9%E3%83%9A%E3%83%BC%E3%82%B9.jp">http://ipduh.com/idn/ace/?スペース.jp</a></li><br /></ul><br /></div><br /><div id="aman-to-uni"><br /><a href="http://www.blogger.com/null" name="toUNICODE"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="toUNICODE"></a><a class="listhref" href="http://ipduh.com/idn/unicode">idn/unicode</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />IDNA - ACE to UNICODE convertion</h4><br /><hr id="h-to-uni" /><br /><h5><br />input: <br /><br /><br /><br />An International Domain Name in ASCII Compatible Encoding ACE.<br /><br /><br /><br />output:</h5><br />The International Domain Name in Unicode. <br /><br /><hr id="h-to-uni" /><br /><h4><br />Examples of using idn/unicode.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/idn/unicode/?xn--qu-cja.com">http://ipduh.com/idn/unicode/?xn--qu-cja.com</a></li><br /><li><a class="listhref" href="http://ipduh.com/idn/unicode/?xn--ar-hpa.com">http://ipduh.com/idn/unicode/?xn--ar-hpa.com</a></li><br /><li><a class="listhref" href="http://ipduh.com/idn/unicode/?xn--caf-dma.com">http://ipduh.com/idn/unicode/?xn--caf-dma.com</a></li><br /><li><a class="listhref" href="http://ipduh.com/idn/unicode/?xn--espaa-rta.com">http://ipduh.com/idn/unicode/?xn--espaa-rta.com</a></li><br /><li><a class="listhref" href="http://ipduh.com/idn/unicode/?xn--jxalpdlp.com">http://ipduh.com/idn/unicode/?xn--jxalpdlp.com</a></li><br /></ul><br /></div><br /><div id="aman-pdb-as"><br /><a href="http://www.blogger.com/null" name="peeringdb"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="peeringdb"></a><a class="listhref" href="http://ipduh.com/pdb/as">pdb/as</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />PeeringDB information about an Autonomous System</h4><br /><hr id="h-pdb-as" /><br /><h5><br />input: <br /><br /><br /><br />An autonomous system number<br /><br /><br /><br />output:</h5><br />The information that the Autonomous System Owner put in the Peering database.<br /><br /><hr id="h-pdb-as" /><br />The peeringdb information is cached for at least 15 days. The latest PeeringDB information can be viewed at <a class="listhref" href="https://www.peeringdb.com/">peeringdb.com</a>. <br /><br /><hr id="h-pdb-as" /><br /><h4><br />Examples of using pdb/as.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/pdb/as/?10745">http://ipduh.com/pdb/as/?10745</a></li><br /><li><a class="listhref" href="http://ipduh.com/pdb/as/?AS33764">http://ipduh.com/pdb/as/?AS33764</a></li><br /><li><a class="listhref" href="http://ipduh.com/pdb/as/?ASN16509">http://ipduh.com/pdb/as/?ASN16509</a></li><br /></ul><br /></div><br /><div id="aman-ip-whois"><br /><a href="http://www.blogger.com/null" name="ip-whois"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ip-whois"></a><a class="listhref" href="http://ipduh.com/ip/whois">ip/whois</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />IP address whois lookup</h4><br /><hr id="h-ip-whois" /><br /><h5><br />input: <br /><br /><br /><br />a public IPv4 address<br /><br /><br /><br />output: </h5><br />The whois information for the IP address entered.<br /><br /><br /><br /><hr id="h-ip-whois" /><br /><h4><br />Examples of using ip/whois with GET requests</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ip/whois/?2.4.4.2">http://ipduh.com/ip/whois/?2.4.4.2</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/whois/?16.8.4.2">http://ipduh.com/ip/whois/?16.8.4.2</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/whois/?3.9.27.81">http://ipduh.com/ip/whois/?3.9.27.81</a></li><br /></ul><br /><hr id="h-ip-whois" /><br /><h4><br />Caveat</h4><br />ip/whois caches whois information for 15 days.</div><br /><div id="aman-idn"><br /><a href="http://www.blogger.com/null" name="IDN"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="IDN"></a><a class="listhref" href="http://ipduh.com/idn">idn</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />International Domain Name convertions ( Unicode to ACE xor ACE to Unicode ) </h4><br /><hr id="h-idn" /><br /><h5><br />input: <br /><br /><br /><br />a Domain Name<br /><br /><br /><br />output: </h5><br />If the domain entered is an international domain name encoded in Unicode it's ASCII Compatible encoded ( ACE ) version.<br /><br />If the domain name entered is an Internation domain name encode in ACE it's equivalent Unicode encoded version. <br /><br /><hr id="h-idn" /><br /><h4><br />Examples of using idn.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/idn/?%D0%AF%D0%BD%D0%B4%D0%B5%D0%BA%D1%81.%D1%80%D1%84">http://ipduh.com/idn/?Яндекс.рф</a></li><br /><li><a class="listhref" href="http://ipduh.com/idn/?xn--80aa9ahjp.com">http://ipduh.com/idn/?xn--80aa9ahjp.com</a></li><br /><li><a class="listhref" href="http://ipduh.com/idn/?xn--fiqz9s.xn--fiqz9s">http://ipduh.com/idn/?xn--fiqz9s.xn--fiqz9s</a></li><br /><li><a class="listhref" href="http://ipduh.com/idn/?xn--hgbk6aj7f53bba.com">http://ipduh.com/idn/?xn--hgbk6aj7f53bba.com</a></li><br /><li><a class="listhref" href="http://ipduh.com/idn/?xn--jxalpdlp.">http://ipduh.com/idn/?xn--jxalpdlp.</a></li><br /></ul><br /></div><br /><div id="aman-ip-whois-as"><br /><a href="http://www.blogger.com/null" name="ip-whois-as"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ip-whois-as"></a><a class="listhref" href="http://ipduh.com/ip/whois/as">ip/whois/as</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a> <br /><br />Autonomous System Number whois lookup</h4><br /><hr id="h-ip-whois-as" /><br /><h5><br />input: <br /><br /><br /><br />an Autonomous System number <br /><br />an Autonomous System number with the "AS" prefix <br /><br />an Autonomous System number with the "ASN" prefix. <br /><br /><br /><br />output: </h5><br />The whois information for an Internet Autonomous System. <br /><br /><br /><br />If the Autonomous System Number entered is not used in Internet BGP routing an explanation is attempted. <br /><br /><br /><br /><hr id="h-ip-whois-as" /><br /><h4><br />Examples of using ip/whois/as with GET requests</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ip/whois/as/?1234">http://ipduh.com/ip/whois/as/?1234</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/whois/as/?AS3333">http://ipduh.com/ip/whois/as/?AS3333</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/whois/as/?ASN45555555">http://ipduh.com/ip/whois/as/?ASN45555555</a></li><br /></ul><br /></div><br /><div id="aman-cidr"><br /><a href="http://www.blogger.com/null" name="cidr"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="cidr"></a><a class="listhref" href="http://ipduh.com/ip/cidr">ip/cidr</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a> <br /><br />IP CIDR Calculator</h4><br /><hr id="h-cidr" /><br /><h5><br />input: <br /><br /><br /><br />A network block in CIDR notation <br /><br /><br /><br />output:</h5><br /><ol id="domain-info-man"><br /><li>If the network address on the CIDR is valid and the network mask on the CIDR is valid. Each Byte in the network address in Binary (put your cursor above the network address on the CIDR block)</li><br /><li>If the CIDR block is invalid ( the network address is not compatible with the network mask ) a valid CIDR block is suggested.</li><br /><li>The IP Range. Network Address - Broadcast Address. </li><br /><li>The Network Mask in decimal dotted notation and each Byte in binary ( put your cursor above the mask).</li><br /><li>The Number of IP addresses in the network block.</li><br /><li>If the the CIDR block is in a special block a short explanation and URI to more information, usually the appropriate RFC.</li><br /></ol><br /><hr id="h-cidr" /><br /><h4><br />Examples of using ip/cidr with GET requests</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ip/cidr/?72.21.192.0/19">http://ipduh.com/ip/cidr/?72.21.192.0/19</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/cidr/?199.59.148.0/22">http://ipduh.com/ip/cidr/?199.59.148.0/22</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/cidr/?192.168.1.0/24">http://ipduh.com/ip/cidr/?192.168.1.0/24</a></li><br /></ul><br /></div><br /><div id="aman-ip-reverse"><br /><a href="http://www.blogger.com/null" name="ip-reverse"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ip-reverse"></a><a class="listhref" href="http://ipduh.com/ip/reverse">ip/reverse</a> or <a class="listhref" href="http://ipduh.com/ip/ptr">ip/ptr</a>   <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />IP address PTR RR lookup - IP reverse mapping - reverse IP address DNS lookup </h4><br /><hr id="h-ip-reverse" /><br />ip/reverse or ip/ptr is based on a IP PTR RR lookup also known as reverse DNS lookup and it is usefull in associating an IP address with a host name or a DNS name. <br /><br /><hr id="h-ip-reverse" /><br /><h5><br />input: <br /><br /><br /><br />a public IPv4 address<br /><br /><br /><br />output: </h5><br /><ol id="domain-info-man"><br /><li>The IP PTR resource record. </li><br /><li>The registered domain name -deduced by the PTR record.</li><br /><li>The A records of the registered domain name.</li><br /></ol><br /><hr id="h-ip-reverse" /><br /><h4><br />Note</h4><br />For single IP addresses <a class="listhref" href="http://ipduh.com/about/#ip-report">ip</a> output includes the ip/reverse output as well.<br /><br /><br /><br /><hr id="h-ip-reverse" /><br /><h4><br />Examples of using ip/reverse with GET requests</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ip/reverse/?3.3.3.3">http://ipduh.com/ip/reverse/?3.3.3.3</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/reverse/?64.95.64.197">http://ipduh.com/ip/reverse/?64.95.64.197</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/reverse/?95.4.4.4">http://ipduh.com/ip/reverse/?95.4.4.4</a></li><br /></ul><br /></div><br /><div id="aman-epoch"><br /><a href="http://www.blogger.com/null" name="epoch"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="epoch"></a><a class="listhref" href="http://ipduh.com/epoch">epoch</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />Epoch Clock and Epoch to Date Conversion</h4><br /><hr id="h-epoch" /><br /><h5><br />input: <br /><br /><br /><br />An Epoch -an integer number<br /><br /><br /><br />output:</h5><br /><ol id="domain-info-man"><br /><li>The equivalent UTC Date.</li><br /><li>The <a href="http://www.blogger.com/null" title="Now">Δsec</a> since <a class="listhref" href="http://ipduh.com/epoch/?0" title="The Unix Epoch">the Unix Epoch</a>.</li><br /><li>The <a href="http://www.blogger.com/null" title="difference in seconds">Δsec</a> from the Unix epoch timestamp entered.</li><br /></ol><br /><hr id="h-epoch" /><br /><h4><br />Examples of using epoch.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/epoch/?-1234567890">http://ipduh.com/epoch/?-1234567890</a></li><br /><li><a class="listhref" href="http://ipduh.com/epoch/?1333333333">http://ipduh.com/epoch/?1333333333</a></li><br /><li><a class="listhref" href="http://ipduh.com/epoch/?12345678901">http://ipduh.com/epoch/?12345678901</a></li><br /><li><a class="listhref" href="http://ipduh.com/epoch/?1010101010">http://ipduh.com/epoch/?1010101010</a></li><br /><li><a class="listhref" href="http://ipduh.com/epoch/?10101010101">http://ipduh.com/epoch/?10101010101</a></li><br /><li><a class="listhref" href="http://ipduh.com/epoch/?1234567890">http://ipduh.com/epoch/?1234567890</a></li><br /></ul><br /></div><br /><div id="aman-dec"><br /><a href="http://www.blogger.com/null" name="decode-URL"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="decode-URL"></a><a class="listhref" href="http://ipduh.com/url/decode">url/decode</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />Percent Decode a URI</h4><br /><hr id="h-dec" /><br /><h5><br />input: <br /><br /><br /><br />A URI <br /><br /><br /><br />output:</h5><br />A percent-decoded string along with an attempt to break up the URI to its main parts. <br /><br /><hr id="h-dec" /><br /><h4><br />Examples of using url/decode.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/url/decode/?https://xn--lzg.net:443/looking/for/a/404/index.htm">http://xn--lzg.net:80/looking/for/a/404/index.htm</a></li><br /><li><a class="listhref" href="http://ipduh.com/url/decode/?http://www.baidu.com/s?wd=ipduh">http://www.baidu.com/s?wd=ipduh</a></li><br /><li><a class="listhref" href="http://ipduh.com/url/decode/?http://www.google.com/search?client=foo&channel=9&q=%E1%BC%93%CE%BD+%CE%BF%E1%BC%B6%CE%B4%CE%B1+%E1%BD%85%CF%84%CE%B9+%CE%BF%E1%BD%90%CE%B4%E1%BD%B2%CE%BD+%CE%BF%E1%BC%B6%CE%B4%CE%B1&oe=utf-8">http://www.google.com/search?client=foo&channel=9&q=%E1%BC%93%CE%BD+%CE%BF%E1%BC%B6%CE%B4%CE%B1+%E1%BD%85%CF%84%CE%B9+%CE%BF%E1%BD%90%CE%B4%E1%BD%B2%CE%BD+%CE%BF%E1%BC%B6%CE%B4%CE%B1&oe=utf-8</a></li><br /></ul><br /></div><br /><div id="aman-bouncer"><br /><a href="http://www.blogger.com/null" name="bouncer"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="bouncer"></a><a class="listhref" href="http://ipduh.com/url/bouncer">url/bouncer</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />Bounce URLs - Basic Protection against Malicious URLs</h4><br /><hr id="h-bouncer" /><br /><h5><br />input: <br /><br /><br /><br />[ IPv4 address | IPv6 address | URI | DNS name ] <br /><br /><br /><br />output:</h5><br />The Bouncer will lookup the DNS name or the IP address contained in the URI in a few major Black Lists. If the URI , IP address , or DNS name pass the test , the bouncer will redirect you there after a few seconds. <br /><br /><br /><br /><hr id="h-bouncer" /><br />The Bouncer transforms plain DNS names , plain IPv4 addresses , and plain IPv6 addresses to HTTP URLs. <br /><br /><br /><br />The Bouncer will bounce URIs using the protocols used often with web browsers: HTTP , HTTPS , and FTP. <br /><br /><br /><br />The Bouncer runs a basic test against the host you are destined.<br /><br />For a more thorough test consult <a class="listhref" href="http://ipduh.com/dns/bl">dns/bl</a> for domain names and <a class="listhref" href="http://ipduh.com/ip/dnsbl">ip/dnsbl</a> for IPv4 address. <br /><br /><br /><br />The Bouncer is ideal when you need to link to URIs beyond your control or to hide your referrer. <br /><br /><hr id="h-bouncer" /><br /><h4><br />Examples of using url/bouncer.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/url/bouncer/?http://alog.ipduh.com">http://ipduh.com/url/bouncer/?http://alog.ipduh.com</a></li><br /><li><a class="listhref" href="http://ipduh.com/url/bouncer/?alog.ipduh.com">http://ipduh.com/url/bouncer/?alog.ipduh.com</a></li><br /><li><a class="listhref" href="http://ipduh.com/url/bouncer/?http://85.25.242.245:80">http://ipduh.com/url/bouncer/?http://85.25.242.245:80</a></li><br /><li><a class="listhref" href="http://ipduh.com/url/bouncer/?85.25.242.245">http://ipduh.com/url/bouncer/?85.25.242.245</a></li><br /><li><a class="listhref" href="http://ipduh.com/url/bouncer/?2001:470:1f0a:2e2:da::">http://ipduh.com/url/bouncer/?2001:470:1f0a:2e2:da::</a></li><br /></ul><br /><hr id="h-bouncer" /><br />The Bouncer waits for 4.5 sec before redirecting. <br /><br />If you do not like the 4.5 sec wait time before the redirection you may use one of the following: <br /><br /><a class="listhref" href="http://ipduh.com/url/bouncer/1/">/url/bouncer/1</a><br /><br /><a class="listhref" href="http://ipduh.com/url/bouncer/2/">/url/bouncer/2</a><br /><br /><a class="listhref" href="http://ipduh.com/url/bouncer/3/">/url/bouncer/3</a><br /><br /><a class="listhref" href="http://ipduh.com/url/bouncer/4/">/url/bouncer/4</a><br /><br /><br /><br /><br /><br /><a class="listhref" href="http://ipduh.com/url/bouncer/1">/url/bouncer/1</a> waits 0.5 sec before redirecting and it may be used in the same way.<br /><br />eg:<a class="listhref" href="http://ipduh.com/url/bouncer/1/?http://alog.ipduh.com">http://ipduh.com/url/bouncer/1/?http://alog.ipduh.com</a> <br /><br /><br /><br /><a class="listhref" href="http://ipduh.com/url/bouncer/2">/url/bouncer/2</a> waits 1.5 sec before redirecting and it may be used in the same way.<br /><br />eg:<a class="listhref" href="http://ipduh.com/url/bouncer/2/?http://alog.ipduh.com">http://ipduh.com/url/bouncer/2/?http://alog.ipduh.com</a> <br /><br /><br /><br /><a class="listhref" href="http://ipduh.com/url/bouncer/3">/url/bouncer/3</a> waits 2.5 sec before redirecting and it may be used in the same way.<br /><br />eg:<a class="listhref" href="http://ipduh.com/url/bouncer/3/?http://alog.ipduh.com">http://ipduh.com/url/bouncer/3/?http://alog.ipduh.com</a> </div><br /><div id="aman-enc"><br /><a href="http://www.blogger.com/null" name="encode-URL"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="encode-URL"></a><a class="listhref" href="http://ipduh.com/url/encode">url/encode</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />Percent Encode a URI</h4><br /><hr id="h-enc" /><br /><h5><br />input: <br /><br /><br /><br />A URI <br /><br /><br /><br />output:</h5><br />A percent-encoded URI. <br /><br /><h4><br />Examples of using url/encode.</h4><br /><hr id="h-enc" /><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/url/encode/?http://yandex.ru/yandsearch?text=%D1%81%D0%B5%D1%80%D0%B2%D0%B5%D1%80%D1%8B">http://yandex.ru/yandsearch?text=серверы</a></li><br /><li><a class="listhref" href="http://ipduh.com/url/encode/?%C2%BFHabla%20espa%C3%B1ol?">¿Habla español?</a></li><br /><li><a class="listhref" href="http://ipduh.com/url/encode/?%D1%86%D0%B5%D0%BD%D1%82%D1%80%20%D0%BE%D0%B1%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D0%BA%D0%B8%20%D0%B4%D0%B0%D0%BD%D0%BD%D1%8B%D1%85">центр обработки данных</a></li><br /></ul><br /></div><br /><div id="aman-dnsbl-ip-chk"><br /><a href="http://www.blogger.com/null" name="dnsbl-ip-chk"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="dnsbl-ip-chk"></a><a class="listhref" href="http://ipduh.com/ip/dnsbl">ip/dnsbl</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />IP address Blacklist check.</h4><br /><hr id="h-dnsbl-ip-chk" /><br /><h5><br />input: <br /><br /><br /><br />a public IPv4 address <br /><br /><br /><br />output: </h5><br /><ol id="domain-info-man"><br /><li>The answer for this IP address from each of the major IP DNS BlackLists and IP 'black' lists queried.</li><br /><li>An explanation for each answer and if needed a URI to more information.</li><br /></ol><br /><br /><br /><hr id="h-dnsbl-ip-chk" /><br /><br /><br /><h4><br />DNS BlackLists and IP 'black' lists queried by ip/dnsbl</h4><br /><ol id="domain-info-man"><br /><li> <a class="listhref" href="http://www.spamhaus.org/zen/">ZEN</a> - zen.spamhaus.org <br /><br />ZEN combines all Spamhaus IP DNSBLs.<br /><br /><br /><br /><ol><br /><li>Spamhaus Block List - SBL - sbl.spamhaus.org <br /><br />A database of IP addresses of spam-sources, spam support services, and snowshoe spammers ( the CSS component ).</li><br /><li>Exploits Block List - XBL - xbl.spamhaus.org<br /><br />XBL includes CBL and a customized NJABL <br /><br /><br /><br /><ol><br /><li>Composite Blocking List - <a class="listhref" href="http://cbl.abuseat.org/">CBL</a> - cbl.abuseat.org <br /><br />CBL lists IP addresses exhibiting characteristics which are specific to open proxies, spam bots, and spam malware.</li><br /><li> Not Just Another Bogus List - <a class="listhref" href="http://njabl.org/">NJABL</a> - njabl.org <br /><br />An IP database of known and potential spam sources ( open relays, open proxies, open form to mail HTTP gateways, dynamic IP pools, and direct spammers )</li><br /></ol><br /></li><br /><li>Policy Block List - PBL - pbl.spamhaus.org<br /><br />A database of end-user IP addresses which should not be delivering unauthenticated SMTP email to any Internet mail server.<br /><br />Many ISPs participate in the PBL project. The PBL lists both dynamic and static IP addresses which by policy whether the block owner's or -interim in its absence- Spamhaus' policy) should not be sending email directly to the MX servers of third parties. </li><br /></ol><br /></li><br /><li><a class="listhref" href="http://www.sorbs.net/">SORBS</a> - dnsbl.sorbs.net <br /><br />Contains all the SORBS DNSBLs<br /><br /><br /><br /><ol><br /><li>   http.dnsbl.sorbs.net<br /><br />List of Open HTTP Proxy Servers.</li><br /><li>   socks.dnsbl.sorbs.net<br /><br />List of Open SOCKS Proxy Servers.</li><br /><li>   misc.dnsbl.sorbs.net<br /><br />List of open Proxy Servers not listed in the SOCKS or HTTP lists.</li><br /><li>   smtp.dnsbl.sorbs.net<br /><br />List of Open SMTP relay servers.</li><br /><li>   web.dnsbl.sorbs.net<br /><br />Hosts that have abusable vulnerabilities</li><br /><li>   spam.dnsbl.sorbs.net<br /><br />List of hosts that have been noted as sending spam/UCE/UBE to the administrators of SORBS. This zone also contains net blocks of spam supporting service providers, including those who provide web sites, DNS or drop boxes for a spammer. Spam supporters are added on a 'third strike and you are out' basis, where the third spam will cause the supporter to be added to the list.</li><br /><li>   block.dnsbl.sorbs.net<br /><br />List of hosts demanding that they never be tested by SORBS.</li><br /><li>   zombie.dnsbl.sorbs.net<br /><br />List of networks hijacked from their original owners, some of which have been used for spamming.</li><br /><li>   dul.dnsbl.sorbs.net<br /><br />Dynamic IP Address ranges (NOT a Dial Up list!)</li><br /><li>   badconf.rhsbl.sorbs.net<br /><br />List of domain names where the A or MX records point to bad address space.</li><br /><li>   nomail.rhsbl.sorbs.net<br /><br />List of domain names where the owners have indicated no email should ever originate from these domains.</li><br /></ol><br /></li><br /><li>SpamCop Blocking List - <a class="listhref" href="http://www.spamcop.net/bl.shtml">SCBL</a> - bl.spamcop.net<br /><br />SCBL lists IP addresses that were used to spam.</li><br /><li>Barracuda Reputation Block List - <a class="listhref" href="http://barracudacentral.org/rbl/listing-methodology">BRBL</a> - b.barracudacentral.org<br /><br />Lists IP addresses which are sending spam or viruses</li><br /><li><a href="http://www.blogger.com/null" name="tor-dan-uk">Tor.dan.me.uk </a> - <a class="listhref" href="https://www.dan.me.uk/dnsbl">dan.me.uk</a> - A list of IP addresses used currently by the Tor Network. <br /><br />If the IPv4 address entered is listed on tor.dan.me.uk some information regarding its Tor Network characteristics ( the node name, the port used by Tor, and whether it is: Fast,Guard,Named,Running,Stable, or Valid ). </li><br /><li>Team Cymru Full Bogons List - <a class="listhref" href="http://www.team-cymru.org/">Team Cymru</a> <br /><br />This List contains IP addresses that are not assigned to an ISP or other end-user and they should not be seen in the Internet. </li><br /><li>IPduh Black List - An IP black List, not a DNSBL. <br /><br />Contains IP addresses used by abusive or compromised systems.</li><br /><li><a href="http://www.blogger.com/null" name="ipduh-tor-exit-list">IPduh Tor Exit List</a> - A list of IP addresses that have been Tor Exits, not a DNSBL. <br /><br />This list is maintained by IPduh and it is composed mainly by the Tor Project data . <br /><br />If the IPv4 address entered is listed on the IPduh Tor Exit List the first and the last times it was seen used as a Tor Exit are displayed. </li><br /></ol><br /><hr id="h-dnsbl-ip-chk" /><br /><h4><br />Examples of using ip/dnsbl </h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/ip/dnsbl/?72.46.128.246">http://ipduh.com/ip/dnsbl/?72.46.128.246</a></li><br /><li><a class="listhref" href="http://ipduh.com/ip/dnsbl/?216.108.235.216">http://ipduh.com/ip/dnsbl/?216.108.235.216</a></li><br /></ul><br /></div><br /><div id="aman-ip-scan"><br /><a href="http://www.blogger.com/null" name="ip-scan"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ip-scan"></a><a class="listhref" href="http://ipduh.com/ip/srv">ip/srv</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a> <br /><br /><br /><br />Check which of the most common services are running on the host(s) using a remote IP address. </h4><br /><hr id="h-ip-scan" /><br /><h5><br />input: <br /><br /><br /><br />a public IPv4 address <br /><br /><br /><br />output: </h5><br /><ol id="domain-info-man"><br /><li>The TCP ports that accepted connection within 300ms.</li><br /><li>Limited software recognition for the daemons found listening and some of the headers.</li><br /><li>Limited OS recognition, Uptime guess, Link Type Guess, and TOS.</li><br /><li>Guess the number of systems using the IP address.</li><br /></ol><br /><hr id="h-ip-scan" /><br /><h4><br />List of the TCP ports probed by ip/srv and their common use</h4><br /><ol id="domain-info-man"><br /><li><a href="http://www.blogger.com/null" title="File Transfer Protocol FTP">21 - FTP - File Transfer Protocol</a></li><br /><li><a href="http://www.blogger.com/null" title="Secure SHell SSH">22 - SSH Secure SHell</a></li><br /><li><a href="http://www.blogger.com/null" title="Telnet 23"> 23 - Telnet </a></li><br /><li><a href="http://www.blogger.com/null" title="Simple Mail Transfer Protocol SMTP">25 - SMTP - Simple Mail Protocol</a></li><br /><a href="http://www.blogger.com/null" title="Simple Mail Transfer Protocol SMTP"><br /></a><br /><li><a href="http://www.blogger.com/null" title="Simple Mail Transfer Protocol SMTP over SSL/TLS">465 - SMTP SSL/TLS - Simple Mail Transfer Protocol over SSL/TLS (encrypted)</a></li><br /><li><a href="http://www.blogger.com/null" title="Domain Name System DNS">53 - DNS - Domain Name System</a></li><br /><li><a href="http://www.blogger.com/null" title="HyperText Transfer Protocol HTTP">80 - HTTP - HyperText Transfer Protocol</a></li><br /><li><a href="http://www.blogger.com/null" title="Post Office Protocol version 3 POP3">110 - POP3 - Post Office Protocol version 3</a></li><br /><li><a href="http://www.blogger.com/null" title="Network Time Protocol NTP">123 - NTP - Network Time Protocol</a></li><br /><li><a href="http://www.blogger.com/null" title="Internet Message Access Protocol IMAP">143 - IMAP - Internet Message Access protocol</a></li><br /><li><a href="http://www.blogger.com/null" title="Internet Message Access Protocol IMAP over SSL/TLS">993 - IMAP over SSL/TLS (encrypted)</a></li><br /><li><a href="http://www.blogger.com/null" title="Lightweight Directory Access Protocol LDAP">389 - LDAP - Lightweitght Directory Access Protocol</a></li><br /><li><a href="http://www.blogger.com/null" title="HyperText Transfer Protocol Secure">443 - HTTPS - HyperText Transfer Protocol Secure (encrypted) </a><br /><br />ip/srv also attempts to print the certificate details.</li><br /><li><a href="http://www.blogger.com/null" title="TCP port 587 Message Submission Agent">587 - MSA - Message Submission Agent</a></li><br /><li><a href="http://www.blogger.com/null" title="TCP port 1352 Lotus Notes">1352 - Lotus Notes</a></li><br /><li><a href="http://www.blogger.com/null" title="TCP port 1433 Windows SQL server">1433 - Microsoft SQL server</a></li><br /><li><a href="http://www.blogger.com/null" title="TCP port 3306 MySQL Server">3306 - MySQL Server</a></li><br /><li><a href="http://www.blogger.com/null" title="TCP port 3389 Windows Remote Desktop Connection Service">3389 - Windows Remote Desktop Connection Service</a></li><br /></ol><br /><hr id="h-ip-scan" /><br /><a href="http://www.blogger.com/null" name="ip-srv-bot"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="ip-srv-bot">IPduh.com/ip/srv bot</a></h4><br />ip/srv bot is called the piece of software that does the scans or looks up the cashed scans. The scans are cashed for no fixed periods of time. The ip/srv bot always attempts to pass the asker's IP address to the web server listening on the scanned IP when it attempts a new (non-cached) scan. The ip/srv bot always acts at someone's request and never picks arbitrary hosts to lookup. <br /><br /><br /><br />If you are a server administrator who does not want his server's IP to be scanned by ip/srv please <a class="listhref" href="http://ipduh.com/contact">tell IPduh so</a>. If you are a server administrator that wants to know who requested an ip/srv scan, search your web server's logs for IPduhSrvBot. <br /><br /><br /><br />The ip/srv agent signature on http daemons listening on port 80 or port 443 looks like: <br /><br /><br /><br />"Mozilla/5.0 (compatible; IPduhSrvBot/VERSION; for/192.0.2.222; +http://ipduh.com/about/#ip-srv-bot)" <br /><br /><br /><br />where: 192.0.2.222 is the IP address of the IPduh user who requested the first ip/srv scan, and VERSION is [0.0.1 - 0.9.9]. <br /><br /><br /></div><br /><div id="aman-dns-whois"><br /><a href="http://www.blogger.com/null" name="dns-whois"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="dns-whois"></a><a class="listhref" href="http://ipduh.com/dns/whois">dns/whois</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />Domain Name whois lookup</h4><br /><hr id="h-dns-whois" /><br /><h5><br />input: <br /><br /><br /><br />a registered DNS domain name<br /><br /><br /><br />output:</h5><br /><ul><br /><li>The domain name whois information or a URI to the whois information.</li><br /></ul><br /><hr id="h-dns-whois" /><br /><h4><br />Examples of using dns-whois</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/dns/whois/?ietf.org">http://ipduh.com/dns/whois/?ietf.org</a></li><br /><li><a class="listhref" href="http://ipduh.com/dns/whois/?icann.org">http://ipduh.com/dns/whois/?icann.org</a></li><br /></ul><br /><br /><br /><hr id="h-dns-whois" /><br /><br /><br /><h4><br />Caveat</h4><br />In an effort to not be a nuisance to the whois servers dns/whois caches whois queries for at least 15 days.</div><br /><div id="aman-dns-bl"><br /><a href="http://www.blogger.com/null" name="dns-bl"> </a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="dns-bl"></a><a class="listhref" href="http://ipduh.com/dns/bl">dns/bl</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a> <br /><br />Domain name URIBL and IP BLack List lookup</h4><br /><h5><br />input: <br /><br /><br /><br />a DNS domain name<br /><br /><br /><br />output:</h5><br /><ul><br /><li>The URI Black Lists' answers, and the answers of the major IP (DNS) Black Lists for all the IP addresses DNS related to the domain name. </li><br /></ul><br /><hr id="h-dns-bl" /><br /><h4><br />The URI Black Lists</h4><br /><ol id="domain-info-man"><br /><li>Google Safe Browsing - <a class="listhref" href="http://code.google.com/apis/safebrowsing/safebrowsing_faq.html">Google Safe Browsing FAQ</a><br /><br /><br /><br />This is a list of sites involved in <a class="listhref" href="http://ipduh.com/about/#phising">phising</a> or sites dedicated to the spread of <a class="listhref" href="http://ipduh.com/about/#malware">malware</a>. </li><br /><li>URIBL - <a class="listhref" href="http://uribl.com/">uribl.com</a> <br /><br /><br /><br />URIBL lists domain names found in URIs in the body of spam messages. These domain names may be used in one or more of the following categories of web sites: spamadvertized sites that are trying to sell something, <a class="listhref" href="http://ipduh.com/about/#phising">phising sites</a>, sites that host <a class="listhref" href="http://ipduh.com/about/#malware">malware</a> or used by malware, sites that infect visitors with malware. </li><br /></ol><br /><h4><br />The IP Black Lists</h4><br />The IP Black Lists queried for every DNS related IP address are the same with the ones queried by <a class="listhref" href="http://ipduh.com/about/#dnsbl-ip-chk">ip/dnbl</a>.<br /><br /><hr id="h-dns-bl" /><br /><h4><br />Examples of using dns-bl</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/dns/bl/?tapissier-a-paris.com">http://ipduh.com/dns/bl/?tapissier-a-paris.com</a></li><br /><li><a class="listhref" href="http://ipduh.com/dns/bl/?hemlturvy.com">http://ipduh.com/dns/bl/?hemlturvy.com</a></li><br /></ul><br /><hr id="h-dns-bl" /><br />For each of the DNS related IP addresses of the domain name dns/bl does not print IP Black Lists that answered "not listed". <br /><br />You could use <a class="listhref" href="http://ipduh.com/dns/bl/verbose/">dns/bl/verbose</a> if you want to see everything printed.<br /><br /><br /><br /><b> The domain names listed in the URI Black Lists are: dedicated to the propagation of malware, used for phising, used for spamming, or advertized though spamming. <br /><br /><br /><br />IPduh suggests to not use your browser to visit any of the domain names listed on the URI Black Lists. </b> <br /><br /><br /><br /><a href="http://www.blogger.com/null" name="phising"><b>phishing</b></a> site: Forgery or imitation of another website, designed to trick users into sharing personal or financial information. Entering any personal information on such site may result in identity theft or other abuse of the information entered. <br /><br /><br /><br /><a href="http://www.blogger.com/null" name="malware"><b>malware</b></a> site: A site that contains malicious software that could be downloaded to a user's computer without the user's content. A site used in controlling infected computers and coordinate malicious attacks or attempts to spread software viruses and other malicious software. <br /><br /><hr id="h-dns-bl" /><br />It is possible for the lists used by <a class="example" href="http://ipduh.com/dns/bl">dns/bl</a> to contain outdated or false information. It is possible that the lists compiled by IPduh to contain errors. The IPduh experience shows that the external lists chosen and the lists compiled by IPduh have a low false/positive ratio. </div><br /><div id="aman-domain-info"><br /><a href="http://www.blogger.com/null" name="domain-info"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="domain-info"></a><a class="listhref" href="http://ipduh.com/dns">dns</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />Lookup the A, MX, NS, SOA DNS records, relevant IP addresses, and servers' locations.</h4><br /><hr id="h-domain-info" /><br /><h5><br />input: <br /><br /><br /><br />a DNS name <br /><br /><br /><br />output:</h5><br /><ol id="domain-info-man"><br /><li> The purpose and the country (if any) of the Top Level Domain TLD.</li><br /><li> The Address ( A ) records and the locations of these IP addresses. <br /><br />The A records usually point to webservers. </li><br /><li> The A record of www --The www subdomain usually points to webservers.</li><br /><li> The CNAME record</li><br /><li> The DNAME record</li><br /><li> The AAAA record(s) <br /><br />IPv6 address records.</li><br /><li> The TXT record</li><br /><li> The Mail Exchange ( MX ) records, their priority and their location. <br /><br />The MX records point to Mail Transfer Agents - mailservers. The number in front of the MX records specifies the preference value for the mailserver or the array of mailservers the record points to. </li><br /><li> The Name Server ( NS ) records and the nameservers' locations.</li><br /><li> The Start Of Authority ( SOA ) record, which includes:<br /><br /><br /><br /><ol><br /><li>   SERIAL - the domain serial number. <br /><br />This is an unsigned 32 bit integer that must be incremented on the primary server every time a change is made. <a href="http://tools.ietf.org/html/rfc1912#section-2.2">[RFC1912 2.2]</a> recommends the YYYYMMDDnn syntax where YYYY=year,MM=month,DD=day,nn=revision number. </li><br /><li>   MNAME - the primary name server.</li><br /><li>   RNAME - the email of the domain name administrator.<br /><br />RNAME must follow the hostmaster.example.tld format meaning hostmaster@example.tld. </li><br /><li>   REFRESH -the refresh timer.<br /><br />A signed 32 bit integer that specifies the number of seconds between the time that a secondary name server checks if the zone was changed on the primary nameserver. </li><br /><li>   RETRY - the retry timer.<br /><br />A signed 32 bit integer that specifies the number of seconds that the secondary name server(s) have to wait if a REFRESH fails. </li><br /><li>   TTL - the Time To Live timer.<br /><br />TTL is an unsigned 32 bit integer that defines the number of seconds that a record may be cached. </li><br /></ol><br /></li><br /></ol><br /><br /><br /><hr id="h-domain-info" /><br /><h4><br />Examples of using dns with GET requests</h4><br /><ul><br /><li> <a class="listhref" href="http://ipduh.com/dns/?example.net">http://ipduh.com/dns/?example.net</a> </li><br /><li> <a class="listhref" href="http://ipduh.com/dns/?bing.com">http://ipduh.com/dns/?bing.com</a><br /><br /></li><br /><li> <a class="listhref" href="http://ipduh.com/dns/?live.com">http://ipduh.com/dns/?live.com</a><br /><br /></li><br /><li> <a class="listhref" href="http://ipduh.com/dns/?bing.fr">http://ipduh.com/dns/?bing.fr</a><br /><br /></li><br /><li> <a class="listhref" href="http://ipduh.com/dns/?yahoo.com">http://ipduh.com/dns/?yahoo.com</a><br /><br /></li><br /></ul><br /><br /><br /><hr id="h-domain-info" /><br /><h4><br />Note</h4><br />For better results use the registered domain name <a class="listhref" href="http://ipduh.com/dns/?example.com">example.com</a> and do not use subdomains like <a class="listhref" href="http://ipduh.com/dns/?www.example.com">www.example.com </a><br /><br /><br /><br />There are cases that subdomain zones are delegated to name servers different than the domain authoritative name servers, and the subdomain has a different set of DNS records.<br /><br /><ul><br /><li> <a class="listhref" href="http://ipduh.com/dns/?tools.ietf.org">http://ipduh.com/dns/?tools.ietf.org</a><br /><br /></li><br /></ul><br /><br /><br />To see the root nameservers for a Top Level Domain use "TLD." and not just "TLD"<br /><br /><ul><br /><li> <a class="listhref" href="http://ipduh.com/dns/?net.">http://ipduh.com/dns/?net.</a><br /><br /></li><br /><li> <a class="listhref" href="http://ipduh.com/dns/?gr.">http://ipduh.com/dns/?gr.</a><br /><br /></li><br /></ul><br /><br /><br />For International Domain Names, just use their UTF8 encoded form <br /><br /><ul><br /><li> <a class="listhref" href="http://ipduh.com/dns/?%CE%AF%CE%B4%CF%81%CF%85%CE%BC%CE%B1%CF%84%CE%B5%CF%87%CE%BD%CE%BF%CE%BB%CE%BF%CE%B3%CE%AF%CE%B1%CF%82%CE%AD%CF%81%CE%B5%CF%85%CE%BD%CE%B1%CF%82.gr">http://ipduh.com/dns/?ίδρυματεχνολογίαςέρευνας.gr</a> </li><br /></ul><br /></div><br /><div id="aman-traceroute"><br /><a href="http://www.blogger.com/null" name="traceroute"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="traceroute"></a><a class="listhref" href="http://ipduh.com/ip/traceroute">ip/traceroute</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />IP traceroute</h4><br /><hr id="h-traceroute" /><br />Trace packets on their route from an Internet host in AS2490 along their route to another IPv4 Internet host. <br /><br /><hr id="h-traceroute" /><br /><h5><br />input < <br /><br /><br /><br />An Internet IPv4 address<br /><br /><br /><br />output > </h5><br />If the IP address entered is a routable Internet IP address, the intermediate routers along the IP path from IPduh to the IP address entered. For each of the routers in the path ip/traceroute attempts to output their reverse records, their IP addresses, the Autonomous Systems in which they belong, and the time it took them to respond to the traceroute probes. </div><br /><div id="aman-anonymity-chk"><br /><a href="http://www.blogger.com/null" name="anonymity-check"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="anonymity-check"></a><a class="listhref" href="http://ipduh.com/anonymity-check">anonymity-check</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a></h4><br />The anonymity-check shows what a web server can see or deduce about a web user. The web user information leaked to the WWW servers varies and depends on the web user's system, browser, settings, and local or proxy network. Even though the anonymity-check was intended to be used as a tool to demonstrate ways used by many sites to track web users, to check the anonymity of a connection through an HTTP proxy , check the integrity of an HTTP conversation, and test a Tor setup , it is more commonly used to find out the browser and network settings when troubleshooting. The anonymity checker is also a good way to find out if your privacy plugin <u>conceals</u> or <u>ruins</u> your <u>Privacy</u>. <br /><br /><hr id="h-anonymity-chk" /><br /><h5><br />Anonymity-check performs a plethora of tests and it is enhanced with new tests at a regular basis. <br /><br />For the most part it reports only its finds. <br /><br /><br /><br />Some of the Anonymity-check checks: </h5><br /><ol id="domain-info-man"><br /><li>Searching the HTTP headers for proxy traces. <br /><br /><br /><br />Some common HTTP headers used by web proxy servers are the following.<br /><br /><br /><br /><ol><br /><li>HTTP_FORWARDED</li><br /><li>HTTP_X_FORWARDED_FOR</li><br /><li>HTTP_VIA</li><br /><li>HTTP_PROXY_CONNECTION</li><br /><li>HTTP_PROXY_ID</li><br /><li>HTTP_XROXY_CONNECTION</li><br /><li>HTTP_PROXY_CONNECTION</li><br /><li>HTTP_CLIENT_IP</li><br /></ol><br /></li><br /><li>If cookies are accepted,anonymity-check processes the *leg cookies which hold information about the client's earlier visits and the previous IP address.</li><br /><li>The anonymity checker attempts to virtually ( it does not really store any of your inforamtion to the IPduh systems ) track you through an ETag. </li><br /><li>If Java is enabled, anonymity-check attempts to figure out your private IP address along with your computer's host name. None of this information is sent back to IPduh.</li><br /><li>Anonymity-check looks at the IP packets coming from your system or proxy system. This way it attempts to find out the MTU and advertised MSS along with information about your OS, your uptime, whether you are behind a NAT router or a firewall, your link type, and the number of the intermediate routers. </li><br /><li>Anonymity-check attempts to print the referral URI and the visiting system's host name as seen in the HTTP headers.</li><br /><li>Anonymity-check shows a report about your public IP addess. This report contains the same information with <a class="listhref" href="http://ipduh.com/about/#ip-report">ip</a>. </li><br /><li>Anonymity-check prints your user agent information as seen in the HTTP headers.</li><br /><li>Anonymity-check attemps to figure out the language(s) set to default on your web browser.</li><br /><li>If javascript is enabled on your browser, anonymity-check <ol><br /><li> prints the cookies set by IPduh</li><br /><li> the visiting system's screen dimensions</li><br /><li> the character string identifying your WWW user agent.</li><br /><li> the plugins installed on the web browser, if any</li><br /><li> the operating system and the operating system vendor if available</li><br /><li> Attempts to store information about your visit on your system.</li><br /><li> If the Flash plugin is installed and enabled the anonymity checker attempts to store information about your visit on the Flash Local Share Object.</li><br /><li> Attempts to find previously stored information about your visits on your system.</li><br /></ol><br /></li><br /><li>The Anonymity checker attempts to find the cashing name servers used by your system and print links to more information about them.</li><br /><li>The Anonymity checker attempts to detect anomalies such as missing or extra headers and HTML injections in the HTTP conversations between you system and IPduh.</li><br /></ol><br /><hr id="h-anonymity-chk" /><br /><h4><br />Note</h4><br />To see all the anonymity-check finds visit it two times in a browsing session, then do what you usually do when you want to clean up your browsing history and visit the <a class="example" href="http://ipduh.com/anonymity-check">Anonymity Checker</a> again. <br /><br />To encrypt your communication with the anonymity checker use <a class="listhref" href="https://ipduh.com/anonymity-check">https://ipduh.com/anonymity-check</a>. <br /><br /><br /><br />To use TLS - SSL encryption in between your browser and IPduh you may need to <a class="example" href="http://ipduh.com/ca_cert/ipduh_ca_cert.crt">trust the IPduh Certificate Authortity - install the IPduh CA public certificate</a>. <br /><br />To automate your public IP address lookup you could use <a class="listhref" href="http://ipduh.com/my/ip">http://ipduh.com/my/ip</a>. <br /><br />Most privacy and anti-tracking Firefox plugins tested against the anonymity-check, so far ( <a class="example" href="http://ipduh.com/epoch/?1330538493">1330538493</a> ), failed to deliver what they promise. Actually, 90% of them are completely useless or do Privacy Concealing like it is 1996. </div><br /><div id="aman-geoloc"><br /><a href="http://www.blogger.com/null" name="my-geoloc"></a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="my-geoloc"></a><a class="listhref" href="http://ipduh.com/my/geoloc">my/geoloc</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />geographical location</h4><br /><hr id="h-geoloc" /><br />Yet another HTML5 Location Aware Browsing Demo. Let Google Location Services to estimate your geographical location and draw it on a map. <br /><br /><hr id="h-geoloc" /><br />Before using my/geoloc your browser should ask you if you would like to share the geographical estimation of your system and your IP address with the browser's location service provider --Usually Google Location Services. Your IP address, your GPS reading (if any), and a unique ID identifying your web browser are sent to the location service provider. In case of Google Location Services a cookie with the name PREF is stored in your browser's cookie jar. </div><br /><div id="aman-demux"><br /><a href="http://www.blogger.com/null" name="demux"> </a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="demux"></a><a class="listhref" href="http://ipduh.com/demux">demux</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />Submit a string of characters to an appropriate IPduh tool </h4><br /><hr id="h-demux" /><br /><h5><br />input: <br /><br />A string of characters: <br /><br />[ IP address | IP CIDR block | IPv6 address | IPv6 CIDR block | Autonomous System Number | DNS name | URI ] <br /><br /><br /><br />output:<br /><br />The string of characters submitted to Demux is submitted to an appropriate IPduh tool. <br /><br />[ <a class="listhref" href="http://ipduh.com/ip">ip</a> | <a class="listhref" href="http://ipduh.com/ip/cidr">ip/cidr</a> | <a class="listhref" href="http://ipduh.com/ipv6">ipv6</a> | <a class="listhref" href="http://ipduh.com/ipv6/cidr">ipv6/cidr</a> | <a class="listhref" href="http://ipduh.com/ip/whois/as">ip/whois/as</a> | <a class="listhref" href="http://ipduh.com/dns">dns</a> | <a class="listhref" href="http://ipduh.com/url/decode">url/decode</a>] </h5><br /><hr id="h-demux" /><br /><h4><br /> Examples of using demux </h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/demux/?ameblo.jp">http://ipduh.com/demux/?ameblo.jp</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/?XN--DEBA0AD">http://ipduh.com/demux/?XN--DEBA0AD</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/?%E3%83%86%E3%82%B9%E3%83%88">http://ipduh.com/demux/?テスト</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/?128.64.32.16">http://ipduh.com/demux/?128.64.32.16</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/?ASN6461">http://ipduh.com/demux/?ASN6461</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/?10.0.0.0/8">http://ipduh.com/demux/?10.0.0.0/8</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/?2610:a1:1014:0:0:0:0:1">http://ipduh.com/demux/?2610:a1:1014:0:0:0:0:1</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/?2610:0000::/23">http://ipduh.com/demux/?2610:0000::/23</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/?google.se">http://ipduh.com/demux/?google.se</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/?google.com.ph">http://ipduh.com/demux/?google.com.ph</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/?2914">http://ipduh.com/demux/?2914</a></li><br /></ul><br /></div><br /><div id="aman-demux-class"><br /><a href="http://www.blogger.com/null" name="demux-class"> </a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="demux-class"></a><a class="listhref" href="http://ipduh.com/demux/class">demux/class</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a> <br /><br />Classify a string of characters and see the appropriate IPduh links</h4><br /><hr id="h-demux-class" /><br /><h5><br />input: <br /><br />A string of characters: <br /><br />[ IP address | IP CIDR block | IPv6 address | IPv6 CIDR block | Autonomous System Number | DNS name | URI ] <br /><br /><br /><br />output:<br /><br />A classification and appropriate IPduh links to further information about the string of characters submitted given. <br /><br /></h5><br /><hr id="h-demux-class" /><br /><h4><br /> Examples of using demux/class </h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/demux/class/?instagr.am">http://ipduh.com/demux/class/?instagr.am</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/class/?68.71.220.3">http://ipduh.com/demux/class/?68.71.220.3</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/class/?69.53.236.17/32">http://ipduh.com/demux/class/?69.53.236.17/32</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/class/?2001:4b0:1668:2211:2:0:0:1">http://ipduh.com/demux/class/?2001:4b0:1668:2211:2:0:0:1</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/class/?64.12.79.57">http://ipduh.com/demux/class/?64.12.79.57</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/class/?17.254.13.0/24">http://ipduh.com/demux/class/?17.254.13.0/24</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/class/?714">http://ipduh.com/demux/class/?714</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/class/?espn.go.com">http://ipduh.com/demux/class/?espn.go.com</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/class/?69.175.87.109">http://ipduh.com/demux/class/?69.175.87.109</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/class/?2001:0400::/23">http://ipduh.com/demux/class/?2001:0400::/23</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/class/?4399.com">http://ipduh.com/demux/class/?4399.com</a></li><br /><li><a class="listhref" href="http://ipduh.com/demux/class/?http://ipduh.com/dns/?eff.org">http://ipduh.com/demux/class/?http://ipduh.com/dns/?eff.org</a></li><br /></ul><br /></div><br /><div id="aman-demux-list"><br /><a href="http://www.blogger.com/null" name="demux-list"> </a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="demux-list"></a><a class="listhref" href="http://ipduh.com/demux/list">demux/list</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a><br /><br />Create a List of IP numbers, DNS names, and URIs </h4><br /><hr id="h-demux-list" /><br /><h5><br />input: <br /><br /><br /><br />listed items:<br /><br />[ IPv4 address | IPv6 address | IPv4 CIDR block | IPv6 CIDR block | Autonomous System Number | DNS names | URI ] <br /><br /><br /><br />ipduh-list built-in variables and punctuation marks: <br /><br /><a class="listhref_l" href="http://ipduh.com/about/#syntax-list">&list=</a>   <a class="listhref_l" href="http://ipduh.com/about/#syntax-tri-dash">---</a>   <a class="listhref_l" href="http://ipduh.com/about/#syntax-comma"> , </a>   <a class="listhref_l" href="http://ipduh.com/about/#syntax-title">&title=</a>   <a class="listhref_l" href="http://ipduh.com/about/#syntax-semicolon">;</a> <br /><br /><br /><br />comments: <br /><br />All strings of characters not Identified by demux/list as IP numbers, DNS names, or URIs are printed without IPduh links. <br /><br />A ; stops list processing and hides all characters following it. <br /><br /><br /><br />output: </h5><br />A bookmarkable list of DNS names, IP numbers, URIs and your comments along with links to the appropriate IPduh tools.<br /><br /><hr id="h-demux-list" /><br /><h4><br />Examples of using demux/list</h4><br /><ul><br /><li> <a class="listhref" href="http://ipduh.com/demux/list/?&title=an%20example%20demux%20list%0A&list=%0A144.63.250.10,%0Ablocket.se,%0A164.10.0.0/16,%0A2a00:1a28:1151:0:7397:be48:6c38:a6b7,%0A194.71.107.15,%0A2A00:0000::/12,%0A217.151.205.230/32"> http://ipduh.com/demux/list/?&title=an%20example%20demux%20list%0A&list=%0A144.63.250.10,%0Ablocket.se,%0A164.10.0.0/16,%0A2a00:1a28:1151:0:7397:be48:6c38:a6b7,%0A194.71.107.15,%0A2A00:0000::/12,%0A217.151.205.230/32 </a> </li><br /><li> <a class="listhref" href="http://ipduh.com/demux/list/?title=Genesis%0A&list=%0AGenesis---%0Ahttp://alog.ipduh.com/2012/07/1342191971.html---%0A.---"> Genesis </a> </li><br /><li> <a class="listhref" href="http://ipduh.com/demux/list/?&title=Public%20Name%20Servers%0A&list=%0Agoogle.com,%0A8.8.8.8,8.8.4.4,2001:4860:4860::8888,2001:4860:4860::8844,.,%0Aopendns.com,%0A208.67.222.222,208.67.220.220,%0A,.,%0Anorton.com,%0A198.153.192.40,198.153.194.40,%0A,Warns%20about%20and%20censors%20DNS%20names%20used%20by%20malicious%20sites,%0A198.153.192.50,198.153.194.50,%0A,Warns%20about%20and%20censors%20DNS%20names%20used%20by%20malicious%20or%20Pornography%20sites%20,%0A198.153.192.60,198.153.194.60,%0A,Warns%20about%20and%20censors%20DNS%20names%20used%20by%20malicious%20or%20Pornography%20or%20Non-Family-Friendly%20sites%0A,.,%0Agtei.net,%0Averizon.com,%0A4.2.2.1,4.2.2.2,4.2.2.3,4.2.2.4,4.2.2.5,4.2.2.6,%0A,.,%0Alevel3.net,%0A209.244.0.3,209.244.0.4%0A,.,%0Acomodo.com,%0A8.26.56.26,8.20.247.20%0A,.,%0Acisco.com,%0A64.102.255.44,128.107.241.185"> Public Name Servers </a> </li><br /><li><br /><br /></li><br /></ul><br /><hr id="h-demux-list" /><br /><h4><br />Note</h4><br /><a class="listhref_l" href="http://ipduh.com/about/#syntax-em-dash">--</a> is not a valid delimeter anymore. Use <a class="listhref_l" href="http://ipduh.com/about/#syntax-comma"> , </a> or <a class="listhref_l" href="http://ipduh.com/about/#syntax-tri-dash">---</a> instead. Lists using <a class="listhref_l" href="http://ipduh.com/about/#syntax-em-dash">--</a> may be compiled by <a class="listhref" href="http://ipduh.com/demux/list/old">http://ipduh.com/demux/list/old</a>. <br /><br /><br /><br />There is a 3KB limit on the size of the demux lists. <br /><br /><br /><br />Through <a class="example" href="http://ipduh.com/url/bouncer">Bouncer</a> URLs are printed only for HTTP , HTTPS , and FTP URIs. </div><br /><div id="aman-demux"><br /><a href="http://www.blogger.com/null" name="apropos"> </a><br /><br /><h4><br /><a href="http://www.blogger.com/null" name="apropos"></a><a class="listhref" href="http://ipduh.com/apropos">apropos</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a>    <a class="listhref" href="http://ipduh.com/about/#apropos-guides">apropos guides</a>    <a class="listhref" href="http://ipduh.com/about/#add-apropos">add apropos to your browser</a><br /><br />Apropos will submit any string of characters to the appropriate IPduh tool. <br /><br /></h4><br /><hr id="h-demux" /><br />Apropos may be used as an Internet Forensics Search Engine or a General Purpose Search Engine. Apropos is a good place to start your research and the most commonly used Tool of IPduh. <br /><br /><hr id="h-demux" /><br /><h5><br />input: <br /><br />Any string of characters <br /><br /><br /><br /><br /><br />output:<br /><br />The string of characters submitted to apropos will be submitted to the appropriate IPduh tool. <br /><br />[ <a class="listhref" href="http://ipduh.com/ip">ip</a> | <a class="listhref" href="http://ipduh.com/ip/cidr">ip/cidr</a> | <a class="listhref" href="http://ipduh.com/ipv6">ipv6</a> | <a class="listhref" href="http://ipduh.com/ipv6/cidr">ipv6/cidr</a> | <a class="listhref" href="http://ipduh.com/ip/whois/as">ip/whois/as</a> | <a class="listhref" href="http://ipduh.com/dns">dns</a> | <a class="listhref" href="http://ipduh.com/url/decode">url/decode</a> | <a class="listhref" href="http://ipduh.com/search/torrent">torrent search</a> | <a class="listhref" href="http://ipduh.com/search">search</a> ] </h5><br /><hr id="h-demux" /><br /><h4><br /> Examples of using apropos </h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/apropos/?leboncoin.fr">http://ipduh.com/apropos/?leboncoin.fr</a></li><br /><li><a class="listhref" href="http://ipduh.com/apropos/?travelagency.travel">http://ipduh.com/apropos/?travelagency.travel</a></li><br /><li><a class="listhref" href="http://ipduh.com/apropos/?44.55.66.77">http://ipduh.com/apropos/?44.55.66.77</a></li><br /><li><a class="listhref" href="http://ipduh.com/apropos/?13020">http://ipduh.com/apropos/?13020</a></li><br /><li><a class="listhref" href="http://ipduh.com/apropos/?0.0.0.0/0">http://ipduh.com/apropos/?0.0.0.0/0</a></li><br /><li><a class="listhref" href="http://ipduh.com/apropos/?2610:a1:1014:0:0:0:0:1">http://ipduh.com/apropos/?2610:a1:1014:0:0:0:0:1</a></li><br /><li><a class="listhref" href="http://ipduh.com/apropos/?::/0">http://ipduh.com/apropos/?::/0</a></li><br /><li><a class="listhref" href="http://ipduh.com/apropos/?yahoo.no">http://ipduh.com/apropos/?yahoo.no</a></li><br /><li><a class="listhref" href="http://ipduh.com/apropos/?meaning">http://ipduh.com/apropos/?meaning</a></li><br /><li><a class="listhref" href="http://ipduh.com/apropos/?pizza">http://ipduh.com/apropos/?pizza</a></li><br /><li><a class="listhref" href="http://ipduh.com/apropos/?http://ipduh.com/ip/?2.4.8.16">http://ipduh.com/apropos/?http://ipduh.com/ip/?2.4.8.16</a></li><br /><li><a class="listhref" href="http://ipduh.com/apropos/?AS3333">http://ipduh.com/apropos/?AS3333</a></li><br /><li><a class="listhref" href="http://ipduh.com/apropos/?%21t%20gimp">http://ipduh.com/apropos/?!t gimp</a></li><br /><li><a class="listhref" href="http://ipduh.com/apropos/?%21d%20yahoo.be">http://ipduh.com/apropos/?!d yahoo.be</a></li><br /><li><a class="listhref" href="http://ipduh.com/apropos/?http://ipduh.com/demux/list/?&list=192.149.252.58---192.149.252.0/24---example.org">http://ipduh.com/apropos/?http://ipduh.com/demux/list/?&list=192.149.252.58---192.149.252.0/24---example.org</a></li><br /></ul><br /><hr id="h-demux" /><br />Note: apropos does not handle IPduh lists ( <a class="listhref" href="http://ipduh.com/about/#ip-list">ip/list</a> , <a class="listhref" href="http://ipduh.com/about/#dns-list">dns/list</a> , <a class="listhref" href="http://ipduh.com/about/#demux-list">demux/list</a> ) <br /><br /><hr id="h-demux" /><br /><h4><br /><a href="http://www.blogger.com/null" name="apropos-guides">apropos guides</a></h4><br /><ul><br /><li> Apropos ' job is to guide your query to the appropriate IPduh tool. However, there are some "guide operators" that overwrite the apropos default behavior. </li><br /><li> <span class="syntax">!d</span> is used to force use of <a class="listhref" href="http://ipduh.com/dns">dns</a>.The !d guide is useful when apropos is used as the default search engine on the browser's location bar and you want to lookup a domain name instead of visiting it. <br /><br />eg: <a class="listhref" href="http://ipduh.com/apropos/?%21d%20bing.cn">http://ipduh.com/apropos/?!d bing.cn</a> <br /><br /></li><br /><li> <span class="syntax">!t</span> is used to force use of <a class="listhref" href="http://ipduh.com/search/torrent">Torrent Search</a>. Actually the !t guide is the only way you can get to <a class="listhref" href="http://ipduh.com/search/torrent">Torrent Search</a> through apropos.<br /><br />eg: <a class="listhref" href="http://ipduh.com/apropos/?%21t%20official%20demo">http://ipduh.com/apropos/?!t official demo</a> </li><br /><li> <span class="syntax">!u</span> is used to force use of <a class="listhref" href="http://ipduh.com/url/decode">url/decode</a>. The !u guide is useful when apropos is used as the default search engine on the browser's location bar and the user wants to analyze a URI instead of visiting it.<br /><br />eg: <a class="listhref" href="http://ipduh.com/apropos/?%21u%20http://www.bing.com/search?q=what+is+bing&qs=n&form=ATOZ&pq=what+is+bing&sc=12-19&sp=1&sk=blah">http://ipduh.com/apropos/?!u http://www.bing.com/search?q=what+is+bing&qs=n&form=ATOZ&pq=what+is+bing&sc=12-19&sp=1&sk=blah</a> </li><br /></ul><br /><br /><br /><hr id="h-demux" /><br /><a href="http://www.blogger.com/null" name="add-apropos"><b>Add Apropos to your Browser:</b></a> <br /><br /><br /><br />You can add apropos to your browser search engines or set it as your default search engine. <br /><br /><br /><br /><a class="listhref" href="http://ipduh.com/about/#apropos-on-firefox">Add Apropos to Mozilla Firefox and Mozilla based browsers</a> <br /><br /><a class="listhref" href="http://ipduh.com/about/#apropos-on-chrome">Add Apropos to Chrome</a><br /><br /><a class="listhref" href="http://ipduh.com/about/#apropos-on-internet-explorer">Add Apropos to Internet Explorer</a><br /><br /><a class="listhref" href="http://ipduh.com/about/#apropos-on-opera">Add Apropos to Opera</a><br /><br /><br /><br /><br /><br /><br /><br /><hr id="h-demux" /><br /><a href="http://www.blogger.com/null" name="apropos-on-firefox"><b>To add Apropos to your Mozilla Firefox Search Engines:</b></a> <br /><br /><br /><br />Add the Firefox IPduh Apropos add-on from <a class="listhref" href="https://addons.mozilla.org/addon/ipduh-apropos/">https://addons.mozilla.org/addon/ipduh-apropos/</a> <br /><br /><br /><br />OR <br /><br /><br /><br />Click on <a class="listhref" href="http://www.blogger.com/null">this</a> <br /><br /><br /><br />OR <br /><br /><ul><br /><li> visit <a class="listhref" href="http://ipduh.com/">IPduh</a> </li><br /><li> click on the down arrow used to select search engine </li><br /><li> click on <b>Add IPduh Apropos</b>. </li><br /></ul><br /><br /><br /><br /><br /><b>To set Apropos as the default search engine used for invalid URLs on Firefox and Mozilla Based Browsers ( Iceweasel , Seamonkey , etc ):</b> <br /><br /><ul><br /><li> Enter <b>about:config</b> in the browser location bar. </li><br /><li> Promise, you 'll be carefull. </li><br /><li> Enter <b>keyword.URL</b> in the <b>Filter:</b> under the location bar. </li><br /><li> Double-click on the <b>keyword.URL</b> result. </li><br /><li> Enter <b>http://ipduh.com/apropos/?</b> in the text box that pops up </li><br /><li> <b>OK</b> and close the <b>about:config</b> tab. </li><br /></ul><br /><br /><br /><br /><br /><hr id="h-demux" /><br /><a href="http://www.blogger.com/null" name="apropos-on-chrome"><b>To add IPduh Apropos to your Search Engines on Chrome Based Browsers:</b></a> <br /><br /><br /><br />Click on <a class="listhref" href="http://www.blogger.com/null">this</a> <br /><br /><br /><br /><a href="http://www.blogger.com/null" name="apropos-default-on-chrome"><b>To set IPduh Apropos as your default search engine on Chrome Based Browsers:</b></a> <br /><br /><ul><br /><li> visit <a class="listhref" href="http://ipduh.com/">IPduh</a> </li><br /><li> Click the <b>Wrench</b> </li><br /><li> Click <b>Settings</b> </li><br /><li> Choose <b>IPduh Apropos </b> from the drop down list in the Search section under "Set which search engine is used when searching from the omnibox" </li><br /></ul><br /><br /><br /><hr id="h-demux" /><br />In Chrome's omnibox and when Apropos is set as the search engine used on the location bar, you can differentiate domain names you want to lookup from domain names you want to visit by prepending !d to your query eg: <a class="listhref" href="http://ipduh.com/apropos/?%21d%20bing.no">http://ipduh.com/apropos/?!d bing.no</a>. You can also differentiate URIs you want to visit from <a class="listhref" href="http://ipduh.com/url/decode">URIs you want to decode and analyse </a> by prepending !u to the ones you want to analyze, and jump to a <a class="listhref" href="http://ipduh.com/search/torrent">Torrent Search</a> by prepending !t to your query. <br /><br /><hr id="h-demux" /><br /><a href="http://www.blogger.com/null" name="apropos-on-internet-explorer"><b>To add IPduh Apropos to your Internet Explorer Search Engines:</b></a> <br /><br /><br /><br />Click on <a class="listhref" href="http://www.blogger.com/null">this</a> <br /><br /><br /><br />OR <br /><br /><br /><br /><br /><br /><ul><br /><li> visit <a class="listhref" href="http://ipduh.com/">IPduh</a> </li><br /><li> click on the down arrow used to select search engine </li><br /><li> click on <b>Add Search Providers</b>. </li><br /><li> click on <b>IPduh Apropos</b>. </li><br /></ul><br /><br /><br /><br /><br /><hr id="h-demux" /><br /><a href="http://www.blogger.com/null" name="apropos-on-opera"><b>To add IPduh Apropos to your Opera Search Engines:</b></a> <br /><br /><ul><br /><li>visit <a class="listhref" href="http://ipduh.com/">IPduh</a></li><br /><li> click on the down arrow used to select search engine </li><br /><li> click on <b>Manage Search Engines</b>. </li><br /><li> click the <b>Add...</b> Button. </li><br /><li> set the Name -- <b>Apropos</b>. </li><br /><li> set the Keyword -- <b>a</b>. </li><br /><li> set the address to <b>http://ipduh.com/apropos/?%s</b> </li><br /><li> The check boxes following are optional. </li><br /><li> Hit <b>OK</b> </li><br /></ul><br /><br /><br /><br /><br /><hr id="h-demux" /><br /><a href="http://www.blogger.com/null" name="add-apropos-ssl">You can add Apropos over an encrypted connection to your Browser search engines.</a> <br /><br /><br /><br /><a class="listhref" href="http://ipduh.com/about/#apropos-ssl-on-mozilla">Add Apropos over HTTPS to Mozilla Firefox and Mozilla based browsers</a> <br /><br /><a class="listhref" href="http://ipduh.com/about/#apropos-ssl-on-chrome">Add Apropos over HTTPS to Chrome</a><br /><br /><a class="listhref" href="http://ipduh.com/about/#apropos-ssl-on-internet-explorer">Add Apropos over HTTPS to Internet Explorer</a><br /><br /><a class="listhref" href="http://ipduh.com/about/#apropos-ssl-on-opera">Add Apropos over HTTPS to Opera</a><br /><br /><br /><br /><br /><br /><br /><br /><hr id="h-demux" /><br /><b><a href="http://www.blogger.com/null" name="apropos-ssl-on-mozilla">To add Apropos over HTTPS ( an encrypted connection ) to the Mozilla Firefox Search Engines:</a></b> <br /><br /><br /><br />add the Firefox IPduh Apropos SSL add-on from <a class="listhref" href="https://addons.mozilla.org/en-US/firefox/addon/apropos-ssl/">https://addons.mozilla.org/en-US/firefox/addon/apropos-ssl/</a> <br /><br /><br /><br />OR <br /><br /><ul><br /><li> visit <a class="listhref" href="http://ipduh.com/privacy">IPduh Privacy</a> </li><br /><li> click on the down arrow used to select search engine </li><br /><li> click on <b>Add IPduh Apropos SSL</b>. </li><br /></ul><br /><br /><br /><br /><br /><b>To set Apropos over SSL as the default search engine used for invalid URLs on Firefox and Mozilla Based Browsers ( Iceweasel , Seamonkey , etc ):</b> <br /><br /><ul><br /><li> Enter <b>about:config</b> in the browser location bar. </li><br /><li> Promise, you 'll be carefull. </li><br /><li> Enter <b>keyword.URL</b> in the <b>Filter:</b> under the location bar. </li><br /><li> Double-click on the <b>keyword.URL</b> result. </li><br /><li> Enter <b>https://ipduh.com/apropos/?</b> in the text box that pops up </li><br /><li> <b>OK</b> and close the <b>about:config</b> tab. </li><br /></ul><br /><br /><br /><br /><br /><hr id="h-demux" /><br /><a href="http://www.blogger.com/null" name="apropos-ssl-on-chrome"><b>To set IPduh Apropos over SSL as your default search engine on Chrome Based Browsers:</b></a> <br /><br /><ul><br /><li> visit the IPduh <a class="listhref" href="http://ipduh.com/privacy">privacy</a> page. </li><br /><li> Click the <b>Wrench</b> </li><br /><li> Click <b>Settings</b> </li><br /><li> Choose <b>IPduh Apropos SSL</b> from the drop down list in the Search section under "Set which search engine is used when searching from the omnibox" </li><br /></ul><br /><br /><br /><hr id="h-demux" /><br />In Chrome's omnibox and when Apropos is set as the search engine used on the location bar, you can differentiate domain names you want to lookup from domain names you want to visit by prepending !d to your query eg: <a class="listhref" href="http://ipduh.com/apropos/?%21d%20bing.no">http://ipduh.com/apropos/?!d bing.no</a>. If you want to <a class="listhref" href="http://ipduh.com/url/decode">decode and analyze a URI</a> instead of visiting it you can prepend !u to your query, and jump to a <a class="listhref" href="http://ipduh.com/search/torrent">Torrent Search</a> by prepending !t to your query. <br /><br /><hr id="h-demux" /><br /><a href="http://www.blogger.com/null" name="apropos-ssl-on-internet-explorer"><b>To add IPduh Apropos over HTTPS to your Internet Explorer Search Engines:</b></a> <br /><br /><ul><br /><li> visit the IPduh <a class="listhref" href="http://ipduh.com/privacy">privacy</a> page. </li><br /><li> click on the down arrow used to select search engine </li><br /><li> click on <b>Add Search Providers</b>. </li><br /><li> click on <b>IPduh Apropos SSL</b>. </li><br /></ul><br /><br /><br /><br /><br /><hr id="h-demux" /><br /><a href="http://www.blogger.com/null" name="apropos-ssl-on-opera"><b>To add IPduh Apropos over HTTPS to your Opera Search Engines:</b></a> <br /><br /><ul><br /><li>visit the IPduh <a class="listhref" href="http://ipduh.com/privacy">privacy</a> page.</li><br /><li> click on the down arrow used to select search engine </li><br /><li> click on <b>Manage Search Engines</b>. </li><br /><li> click the <b>Add...</b> Button. </li><br /><li> set the Name -- <b>Apropos</b>. </li><br /><li> set the Keyword -- <b>a</b>. </li><br /><li> set the address to <b>https://ipduh.com/apropos/?%s</b> </li><br /><li> The check boxes following are optional. </li><br /><li> Hit <b>OK</b> </li><br /></ul><br /><br /><br /><br /></div><br /><div id="aman-demux"><br /><h4><br /><a href="http://www.blogger.com/null" name="torrent-search"> </a><a class="listhref" href="http://ipduh.com/search/torrent">Torrent Search</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a> <br /><br />Search Torrents across all the major Torrent Trackers, Torrent Directories, and Torrent Search Engines. </h4><br /><hr id="h-demux" /><br />Add the Torrent Search to your Browser Search Engines. <br /><br /><br /><br /><a class="listhref" href="http://ipduh.com/about/#torrent-search-on-firefox">Add Torrent Search to Mozilla Firefox and Mozilla based browsers</a> <br /><br /><a class="listhref" href="http://ipduh.com/about/#torrent-search-on-internet-explorer">Add Torrent Search to Internet Explorer</a> <br /><br /><a class="listhref" href="http://ipduh.com/about/#torrent-search-on-opera">Add Torrent Search to Opera</a> <br /><br /><br /><br /><br /><br /><a href="http://www.blogger.com/null" name="torrent-search-on-firefox"><b>To add Torrent Search to your Firefox Search Engines:</b></a> <br /><br /><br /><br />Add the Firefox Torrent add-on from <a class="listhref" href="https://addons.mozilla.org/en-US/firefox/addon/torrent/">https://addons.mozilla.org/en-US/firefox/addon/torrent/</a> <br /><br /><br /><br />OR <br /><br /><ul><br /><li> visit <a class="listhref" href="http://ipduh.com/search/torrent">the Torrent Search</a> </li><br /><li> click on the down arrow used to select search engine </li><br /><li> click on <b>Add Torrent Search</b>. </li><br /></ul><br /><br /><br /><br /><br /><a href="http://www.blogger.com/null" name="torrent-search-on-internet-explorer"><b>To add Torrent Search to your Internet Explorer Search Engines:</b></a> <br /><br /><ul><br /><li> visit the <a class="listhref" href="http://ipduh.com/search/torrent">Torrent Search</a> </li><br /><li> click on the down arrow used to select search engine </li><br /><li> click on <b>Add Search Providers</b>. </li><br /><li> click on <b>Torrent Search</b>. </li><br /></ul><br /><br /><br /><br /><br /><a href="http://www.blogger.com/null" name="torrent-search-on-opera"><b>To add Torrent Search to your Opera Search Engines:</b></a> <br /><br /><ul><br /><li>visit the <a class="listhref" href="http://ipduh.com/search/torrent">Torrent Search</a></li><br /><li> </li><br /><li> click on the down arrow used to select search engine </li><br /><li> click on <b>Manage Search Engines</b>. </li><br /><li> click the <b>Add...</b> Button. </li><br /><li> set the Name -- <b>Torrent Search</b>. </li><br /><li> set the Keyword -- <b>t</b>. </li><br /><li> set the address to <b>http://ipduh.com/search/torrent/?q=%s</b> </li><br /><li> The check boxes following are optional. </li><br /><li> Hit <b>OK</b> </li><br /></ul><br /><br /><br /><br /><br /><hr id="h-demux" /><br />The <a class="listhref" href="http://ipduh.com/search/torrent">Torrent Search</a> is <a class="listhref" href="http://ipduh.com/about/#apropos-guides">available through apropos with the !t guide</a>. <br /><br /><hr id="h-demux" /><br />Add the Torrent Search over HTTPS --an encrypted Connection-- to your Browser Search Engines. <br /><br /><br /><br /><a class="listhref" href="http://ipduh.com/about/#torrent-search-ssl-on-firefox">Add Torrent Search over HTTPS to Mozilla Firefox and Mozilla based browsers</a> <br /><br /><a class="listhref" href="http://ipduh.com/about/#torrent-search-ssl-on-internet-explorer">Add Torrent Search over HTTPS to Internet Explorer</a> <br /><br /><a class="listhref" href="http://ipduh.com/about/#torrent-search-ssl-on-opera">Add Torrent Search over HTTPS to Opera</a> <br /><br /><br /><br /><br /><br /><a href="http://www.blogger.com/null" name="torrent-search-ssl-on-firefox"><b>To add Torrent Search over HTTPS to your Mozilla Firefox Search Engines:</b></a> <br /><br /><br /><br />Add the <a class="listhref" href="https://addons.mozilla.org/en-US/firefox/addon/torrent-ssl/">Firefox Torrent SSL add-on</a>. <br /><br /><br /><br />OR <br /><br /><ul><br /><li> visit <a class="listhref" href="http://ipduh.com/privacy">IPduh Privacy</a> </li><br /><li> click on the down arrow used to select search engine </li><br /><li> click on <b>Add Torrent Search SSL</b>. </li><br /></ul><br /><br /><br /><br /><br /><a href="http://www.blogger.com/null" name="torrent-search-ssl-on-internet-explorer"><b>To add Torrent Search over HTTPS to your Internet Explorer Search Engines:</b></a> <br /><br /><ul><br /><li> visit the IPduh <a class="listhref" href="http://ipduh.com/privacy">privacy</a> page. </li><br /><li> click on the down arrow used to select search engine </li><br /><li> click on <b>Add Search Providers</b>. </li><br /><li> click on <b>Torrent Search SSL</b>. </li><br /></ul><br /><br /><br /><br /><br /><a href="http://www.blogger.com/null" name="torrent-search-ssl-on-opera"><b>To add Torrent Search SSL to your Opera Search Engines:</b></a> <br /><br /><ul><br /><li>visit the IPduh <a class="listhref" href="http://ipduh.com/privacy">privacy</a> page.</li><br /><li> </li><br /><li> click on the down arrow used to select search engine </li><br /><li> click on <b>Manage Search Engines</b>. </li><br /><li> click the <b>Add...</b> Button. </li><br /><li> set the Name -- <b>Torrent Search SSL</b>. </li><br /><li> set the Keyword -- <b>t</b> or whatever else you think appropriate. </li><br /><li> set the address to <b>https://ipduh.com/search/torrent/?q=%s</b> </li><br /><li> The check boxes following are optional. </li><br /><li> Hit <b>OK</b> </li><br /></ul><br /><br /><br /><br /></div><br /><div id="aman-gmap"><br /><h4><br /><a href="http://www.blogger.com/null" name="gmap"> </a><a class="listhref" href="http://ipduh.com/gmap">gmap</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a> <br /><br />Display a set of coordinates ( latitude , longitude ) on a google map. </h4><br /><hr id="h-gmap" /><br /><h5><br />input: <br /><br /><br /><br />Decimal latitude φ, longitude λ in the uri parameters<br /><br /><br /><br />output:<br /><br />A google map with a marker on the set of coordinates passed. </h5><br /><h4><br />Examples of using gmap.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/gmap/?lat=0.0&lon=0.0">http://ipduh.com/gmap/?lat=0.0&lon=0.0</a></li><br /><li><a class="listhref" href="http://ipduh.com/gmap/?lat=37.97150410463882&lon=23.726579546928406">http://ipduh.com/gmap/?lat37.97150410463882&lon=23.726579546928406</a></li><br /><a class="listhref" href="http://ipduh.com/gmap/?lat=37.97150410463882&lon=23.726579546928406"><br /></a><br /><li><a class="listhref" href="http://ipduh.com/gmap/?lat=32.59346754270018&lon=-117.12919235229492">http://ipduh.com/gmap/?lat=32.59346754270018&lon=-117.12919235229492</a></li><br /></ul><br /></div><br /><div id="aman-gmap"><br /><h4><br /><a href="http://www.blogger.com/null" name="gmap-tolatlon"> </a><a class="listhref" href="http://ipduh.com/gmap/tolatlon">gmap/tolatlon</a>    <a class="listhref" href="http://ipduh.com/about/#internet-tools-menu">Tools Menu</a> <br /><br />Display and Find coordinates ( latitude , longitude ) on a google map. </h4><br /><hr id="h-gmap" /><br /><br /><br /><h5><br />input: <br /><br /><br /><br />Markers with Right Click and decimal latitude and longitude in the uri parameters<br /><br /><br /><br />output:<br /><br />A google map with a marker on the set of coordinates passed.<br /><br />You may right click on the map to enter markers and get the coordinates of points. </h5><br /><h4><br />Examples of using gmap/tolatlon.</h4><br /><ul><br /><li><a class="listhref" href="http://ipduh.com/gmap/tolatlon/?lat=0.0&lon=0.0">http://ipduh.com/gmap/tolatlon/?lat=0.0&lon=0.0</a></li><br /><li><a class="listhref" href="http://ipduh.com/gmap/tolatlon/?lat=37.97150410463882&lon=23.726579546928406">http://ipduh.com/gmap/tolatlon/?lat37.97150410463882&lon=23.726579546928406</a></li><br /><a class="listhref" href="http://ipduh.com/gmap/tolatlon/?lat=37.97150410463882&lon=23.726579546928406"><br /></a><br /><li><a class="listhref" href="http://ipduh.com/gmap/tolatlon/?lat=32.59346754270018&lon=-117.12919235229492">http://ipduh.com/gmap/tolatlon/?lat=32.59346754270018&lon=-117.12919235229492</a></li><br /></ul><br /></div><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><center><br /><a class="nu" href="http://ipduh.com/ip" title="IP address lookup">ip</a>  <a class="nu" href="http://ipduh.com/ip/whois" title="IP address whois lookup">ip/whois</a>  <a class="nu" href="http://ipduh.com/ip/dnsbl" title="IP address DNS Black List Lookup">ip/dnsbl</a>  <a class="nu" href="http://ipduh.com/ip/cidr" title="IP CIDR math">ip/cidr</a>  <a class="nu" href="http://ipduh.com/ip/ptr" title="IP address PTR lookup">ip/ptr</a>  <a class="nu" href="http://ipduh.com/ip/ptr/24" title="PTR lookup for a /24 network">ip/ptr/24</a>  <a class="nu" href="http://ipduh.com/ip/dnstrace" title="IP address PTR dnstrace">ip/dnstrace</a>  <a class="nu" href="http://ipduh.com/ip/srv" title="IP address services scan">ip/srv</a>  <a class="nu" href="http://ipduh.com/ip/traceroute" title="Traceroute to an IP address">ip/traceroute</a>  <a class="nu" href="http://ipduh.com/ip/tor-exit" title="Check if an IP address is or has been a Tor exit">ip/tor-exit</a>  <a class="nu" href="http://ipduh.com/ip/list" title="Create an IP numbers List">ip/list</a><br /><br /> <a class="nu" href="http://ipduh.com/ip/whois/as" title="Autonomous System Number Whois lookup">ip/whois/as</a>  <a class="nu" href="http://ipduh.com/pdb/as" title="Peerding DB Autonomous System Number Lookup">pdb/as</a>  <a class="nu" href="http://ipduh.com/as/prefix" title="Find out what IP prefixes originate an Autonomous System">as/prefix</a>  <a class="nu" href="http://ipduh.com/apropos" title="Relative Information for any String of Characters">apropos</a>  <a class="nu" href="http://ipduh.com/demux" title="Given an IP number or a DNS name go to the one of the appropriate IPduh tools">demux</a>  <a class="nu" href="http://ipduh.com/demux/class" title="Classify and Demultiplex an IP or DNS related String">demux/class</a>  <a class="nu" href="http://ipduh.com/demux/list" title="Create a list of IP numbers and DNS names">demux/list</a><br /><br /> <a class="nu" href="http://ipduh.com/ipv6" title="ipv6 address information">ipv6</a>  <a class="nu" href="http://ipduh.com/ipv6/whois" title="ipv6 address whois information">ipv6/whois</a>  <a class="nu" href="http://ipduh.com/ipv6/ptr" title="ipv6 address ptr">ipv6/ptr</a>  <a class="nu" href="http://ipduh.com/ipv6/dnstrace" title="ipv6 address ptr dnstrace">ipv6/dnstrace</a>  <a class="nu" href="http://ipduh.com/ipv6/cidr" title="ipv6 cidr calculator">ipv6/cidr</a>  <a class="nu" href="http://ipduh.com/ipv6/traceroute" title="ipv6 address traceroute">ipv6/traceroute</a><br /><br /><a class="nu" href="http://ipduh.com/dns" title="Produce a report about a DNS name , DNS lookup++">dns</a>  <a class="nu" href="http://ipduh.com/dns/whois" title="domain name whois lookup">dns/whois</a>  <a class="nu" href="http://ipduh.com/dns/trace" title="DNS delegation trace">dns/trace</a>  <a class="nu" href="http://ipduh.com/dns/bl" title="check if a domain name is listed in any of the major URI black lists">dns/bl</a>  <a class="nu" href="http://ipduh.com/dns/list" title="Produce a list of domain names">dns/list</a>  <a class="nu" href="http://ipduh.com/idn" title="to ACE or to Unicode conversions of International Domain Names">idn</a>  <a class="nu" href="http://ipduh.com/idn/ace" title="IDNA , Unicode to ACE">idn/ace</a>  <a class="nu" href="http://ipduh.com/idn/unicode" title="IDNA , ACE to Unicode">idn/unicode</a><br /><br /> <a class="nu" href="http://ipduh.com/anonymity-check" title="The Anonymity Checker">anonymity check</a>  <a class="nu" href="http://ipduh.com/url/decode" title="Percent Decode and Analyze a URI">url/decode</a>  <a class="nu" href="http://ipduh.com/url/encode" title="Percent Encode a URI">url/encode</a>  <a class="nu" href="http://ipduh.com/url/bouncer" title="Go to a URL if the bouncer thinks it's safe">url/bouncer</a>  <a class="nu" href="http://ipduh.com/my/geoloc" title="A Firefox location aware browsing and google location services demo">my/geoloc</a>  <a class="nu" href="http://ipduh.com/epoch" title="An epoch clock and calculator">epoch</a> <br /><br /><span class="copy"> © <a class="copy" href="http://ipduh.com/epoch/?1372644985"> 1372644985</a></span> <a class="nu" href="http://ipduh.com/">IPduh</a> <a class="nu" href="http://ipduh.com/search">Search</a> <a class="nu" href="http://ipduh.com/contact">Contact</a> <a class="nu" href="http://ipduh.com/privacy">Privacy</a> </center><br /><img border="0" height="0" src="http://ipduh.com/js/amt.js?screen=1366x768&win=1366x494&cdi=24&java=true&shk=n&svg=n&fla=y&rp=y&mov=n&wma=n&pdf=y&uid=awsuser_id1372643047731r8093&sid=awssession_id1372643047731r8093" width="0" /> <img border="0" height="0" src="http://ipduh.com/js/amt.js?screen=1366x768&win=1366x494&cdi=24&java=true&shk=n&svg=n&fla=y&rp=y&mov=n&wma=n&pdf=y&uid=awsuser_id1372643047731r8093&sid=awssession_id1372643047731r8093" width="0" /> <br /><br /><br /><br /><div class="zemanta-pixie" style="height: 15px; margin-top: 10px;"><br /><img alt="" class="zemanta-pixie-img" src="http://img.zemanta.com/pixy.gif?x-id=b9b83919-29a1-4dbf-940d-05cbeff21651" style="border: none; float: right;" /></div><br /></div><br />

IPduh - The Internet Tools

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IP Version 6 Addressing Architecture

<div dir="ltr" style="text-align: left;" trbidi="on"><br /><pre>Network Working Group R. Hinden<br />Request for Comments: 4291 Nokia<br />Obsoletes: 3513 <a class="zem_slink" href="http://en.wikipedia.org/wiki/Steve_Deering" rel="wikipedia" title="Steve Deering">S. Deering</a><br />Category: Standards Track <a class="zem_slink" href="http://www.google.com/finance?q=HKG:4333" rel="googlefinance" title="SEHK: 4333">Cisco Systems</a><br /> February 2006<br /><br /><br /> <a class="zem_slink" href="http://en.wikipedia.org/wiki/IPv6" rel="wikipedia" title="IPv6">IP Version 6</a> Addressing Architecture<br /><br />Status of This Memo<a name='more'></a><br /><br /> This document specifies an <a class="zem_slink" href="http://en.wikipedia.org/wiki/Internet_Standard" rel="wikipedia" title="Internet Standard">Internet standards</a> track protocol for the<br /> <a class="zem_slink" href="http://en.wikipedia.org/wiki/Private_network" rel="wikipedia" title="Private network">Internet</a> community, and requests discussion and suggestions for<br /> improvements. Please refer to the current edition of the "Internet<br /> Official Protocol Standards" (STD 1) for the standardization state<br /> and status of this protocol. Distribution of this memo is unlimited.<br /><br />Copyright Notice<br /><br /> Copyright (C) The Internet Society (2006).<br /><br />Abstract<br /><br /> This specification defines the addressing architecture of the IP<br /> Version 6 (IPv6) protocol. The document includes the IPv6 addressing<br /> model, text representations of IPv6 addresses, definition of IPv6<br /> unicast addresses, anycast addresses, and multicast addresses, and an<br /> IPv6 node's required addresses.<br /><br /> This document obsoletes RFC 3513, "IP Version 6 Addressing<br /> Architecture".<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 1]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br />Table of Contents<br /><br /> 1. Introduction ....................................................2<br /> 2. IPv6 Addressing .................................................2<br /> 2.1. Addressing Model ...........................................3<br /> 2.2. Text Representation of Addresses ...........................4<br /> 2.3. Text Representation of <a class="zem_slink" href="http://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing" rel="wikipedia" title="Classless Inter-Domain Routing">Address Prefixes</a> ....................5<br /> 2.4. Address Type Identification ................................6<br /> 2.5. Unicast Addresses ..........................................6<br /> 2.5.1. Interface Identifiers ...............................7<br /> 2.5.2. The Unspecified Address .............................9<br /> 2.5.3. The Loopback Address ................................9<br /> 2.5.4. Global Unicast Addresses ............................9<br /> 2.5.5. <a class="zem_slink" href="http://en.wikipedia.org/wiki/IPv6_address" rel="wikipedia" title="IPv6 address">IPv6 Addresses</a> with Embedded <a class="zem_slink" href="http://en.wikipedia.org/wiki/IPv4" rel="wikipedia" title="IPv4">IPv4 Addresses</a> ........10<br /> 2.5.6. <a class="zem_slink" href="http://en.wikipedia.org/wiki/Link-local_address" rel="wikipedia" title="Link-local address">Link-Local</a> IPv6 Unicast Addresses ..................11<br /> 2.5.7. Site-Local IPv6 Unicast Addresses ..................11<br /> 2.6. <a class="zem_slink" href="http://en.wikipedia.org/wiki/Anycast" rel="wikipedia" title="Anycast">Anycast</a> Addresses .........................................12<br /> 2.6.1. Required Anycast Address ...........................12<br /> 2.7. Multicast Addresses .......................................13<br /> 2.7.1. Pre-Defined Multicast Addresses ....................15<br /> 2.8. A Node's Required Addresses ...............................17<br /> 3. Security Considerations ........................................18<br /> 4. IANA Considerations ............................................18<br /> 5. Acknowledgements ...............................................18<br /> 6. References .....................................................18<br /> 6.1. Normative References ......................................18<br /> 6.2. Informative References ....................................18<br /> Appendix A: Creating Modified EUI-64 Format Interface Identifiers .20<br /> Appendix B: Changes from RFC 3513 .................................22<br /><br />1. Introduction<br /><br /> This specification defines the addressing architecture of the IP<br /> Version 6 protocol. It includes the basic formats for the various<br /> types of IPv6 addresses (unicast, anycast, and multicast).<br /><br />2. IPv6 Addressing<br /><br /> IPv6 addresses are 128-bit identifiers for interfaces and sets of<br /> interfaces (where "interface" is as defined in Section 2 of [IPV6]).<br /> There are three types of addresses:<br /><br /> Unicast: An identifier for a single interface. A packet sent to a<br /> unicast address is delivered to the interface identified<br /> by that address.<br /><br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 2]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> Anycast: An identifier for a set of interfaces (typically<br /> belonging to different nodes). A packet sent to an<br /> anycast address is delivered to one of the interfaces<br /> identified by that address (the "nearest" one, according<br /> to the routing protocols' measure of distance).<br /><br /> Multicast: An identifier for a set of interfaces (typically<br /> belonging to different nodes). A packet sent to a<br /> multicast address is delivered to all interfaces<br /> identified by that address.<br /><br /> There are no broadcast addresses in IPv6, their function being<br /> superseded by multicast addresses.<br /><br /> In this document, fields in addresses are given a specific name, for<br /> example, "subnet". When this name is used with the term "ID" for<br /> identifier after the name (e.g., "subnet ID"), it refers to the<br /> contents of the named field. When it is used with the term "prefix"<br /> (e.g., "subnet prefix"), it refers to all of the address from the<br /> left up to and including this field.<br /><br /> In IPv6, all zeros and all ones are legal values for any field,<br /> unless specifically excluded. Specifically, prefixes may contain, or<br /> end with, zero-valued fields.<br /><br />2.1. Addressing Model<br /><br /> IPv6 addresses of all types are assigned to interfaces, not nodes.<br /> An IPv6 unicast address refers to a single interface. Since each<br /> interface belongs to a single node, any of that node's interfaces'<br /> unicast addresses may be used as an identifier for the node.<br /><br /> All interfaces are required to have at least one Link-Local unicast<br /> address (see Section 2.8 for additional required addresses). A<br /> single interface may also have multiple IPv6 addresses of any type<br /> (unicast, anycast, and multicast) or scope. Unicast addresses with a<br /> scope greater than link-scope are not needed for interfaces that are<br /> not used as the origin or destination of any IPv6 packets to or from<br /> non-neighbors. This is sometimes convenient for point-to-point<br /> interfaces. There is one exception to this addressing model:<br /><br /> A unicast address or a set of unicast addresses may be assigned to<br /> multiple physical interfaces if the implementation treats the<br /> multiple physical interfaces as one interface when presenting it<br /> to the internet layer. This is useful for load-sharing over<br /> multiple physical interfaces.<br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 3]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> Currently, IPv6 continues the IPv4 model in that a subnet prefix is<br /> associated with one link. Multiple subnet prefixes may be assigned<br /> to the same link.<br /><br />2.2. Text Representation of Addresses<br /><br /> There are three conventional forms for representing IPv6 addresses as<br /> text strings:<br /><br /> 1. The preferred form is x:x:x:x:x:x:x:x, where the 'x's are one to<br /> four hexadecimal digits of the eight 16-bit pieces of the address.<br /> Examples:<br /><br /> ABCD:EF01:2345:6789:ABCD:EF01:2345:6789<br /><br /> 2001:DB8:0:0:8:800:200C:417A<br /><br /> Note that it is not necessary to write the leading zeros in an<br /> individual field, but there must be at least one numeral in every<br /> field (except for the case described in 2.).<br /><br /> 2. Due to some methods of allocating certain styles of IPv6<br /> addresses, it will be common for addresses to contain long strings<br /> of zero bits. In order to make writing addresses containing zero<br /> bits easier, a special syntax is available to compress the zeros.<br /> The use of "::" indicates one or more groups of 16 bits of zeros.<br /> The "::" can only appear once in an address. The "::" can also be<br /> used to compress leading or trailing zeros in an address.<br /><br /> For example, the following addresses<br /><br /> 2001:DB8:0:0:8:800:200C:417A a unicast address<br /> FF01:0:0:0:0:0:0:101 a multicast address<br /> 0:0:0:0:0:0:0:1 the loopback address<br /> 0:0:0:0:0:0:0:0 the unspecified address<br /><br /> may be represented as<br /><br /> 2001:DB8::8:800:200C:417A a unicast address<br /> FF01::101 a multicast address<br /> ::1 the loopback address<br /> :: the unspecified address<br /><br /> 3. An alternative form that is sometimes more convenient when dealing<br /> with a mixed environment of IPv4 and IPv6 nodes is<br /> x:x:x:x:x:x:d.d.d.d, where the 'x's are the hexadecimal values of<br /> the six high-order 16-bit pieces of the address, and the 'd's are<br /><br /><br /><br /><br />Hinden Standards Track [Page 4]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> the decimal values of the four low-order 8-bit pieces of the<br /> address (standard IPv4 representation). Examples:<br /><br /> 0:0:0:0:0:0:13.1.68.3<br /><br /> 0:0:0:0:0:FFFF:129.144.52.38<br /><br /> or in compressed form:<br /><br /> ::13.1.68.3<br /><br /> ::FFFF:129.144.52.38<br /><br />2.3. Text Representation of Address Prefixes<br /><br /> The text representation of IPv6 address prefixes is similar to the<br /> way IPv4 address prefixes are written in Classless Inter-Domain<br /> Routing (CIDR) notation [CIDR]. An IPv6 address prefix is<br /> represented by the notation:<br /><br /> ipv6-address/prefix-length<br /><br /> where<br /><br /> ipv6-address is an IPv6 address in any of the notations listed<br /> in Section 2.2.<br /><br /> prefix-length is a decimal value specifying how many of the<br /> leftmost contiguous bits of the address comprise<br /> the prefix.<br /><br /> For example, the following are legal representations of the 60-bit<br /> prefix 20010DB80000CD3 (hexadecimal):<br /><br /> 2001:0DB8:0000:CD30:0000:0000:0000:0000/60<br /> 2001:0DB8::CD30:0:0:0:0/60<br /> 2001:0DB8:0:CD30::/60<br /><br /> The following are NOT legal representations of the above prefix:<br /><br /> 2001:0DB8:0:CD3/60 may drop leading zeros, but not trailing<br /> zeros, within any 16-bit chunk of the address<br /><br /> 2001:0DB8::CD30/60 address to left of "/" expands to<br /> 2001:0DB8:0000:0000:0000:0000:0000:CD30<br /><br /> 2001:0DB8::CD3/60 address to left of "/" expands to<br /> 2001:0DB8:0000:0000:0000:0000:0000:0CD3<br /><br /><br /><br />Hinden Standards Track [Page 5]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> When writing both a node address and a prefix of that node address<br /> (e.g., the node's subnet prefix), the two can be combined as follows:<br /><br /> the node address 2001:0DB8:0:CD30:123:4567:89AB:CDEF<br /> and its subnet number 2001:0DB8:0:CD30::/60<br /><br /> can be abbreviated as 2001:0DB8:0:CD30:123:4567:89AB:CDEF/60<br /><br />2.4. Address Type Identification<br /><br /> The type of an IPv6 address is identified by the high-order bits of<br /> the address, as follows:<br /><br /> Address type Binary prefix IPv6 notation Section<br /> ------------ ------------- ------------- -------<br /> Unspecified 00...0 (128 bits) ::/128 2.5.2<br /> Loopback 00...1 (128 bits) ::1/128 2.5.3<br /> Multicast 11111111 FF00::/8 2.7<br /> Link-Local unicast 1111111010 FE80::/10 2.5.6<br /> Global Unicast (everything else)<br /><br /> Anycast addresses are taken from the unicast address spaces (of any<br /> scope) and are not syntactically distinguishable from unicast<br /> addresses.<br /><br /> The general format of Global Unicast addresses is described in<br /> Section 2.5.4. Some special-purpose subtypes of Global Unicast<br /> addresses that contain embedded IPv4 addresses (for the purposes of<br /> IPv4-IPv6 interoperation) are described in Section 2.5.5.<br /><br /> Future specifications may redefine one or more sub-ranges of the<br /> Global Unicast space for other purposes, but unless and until that<br /> happens, implementations must treat all addresses that do not start<br /> with any of the above-listed prefixes as Global Unicast addresses.<br /><br />2.5. Unicast Addresses<br /><br /> IPv6 unicast addresses are aggregatable with prefixes of arbitrary<br /> bit-length, similar to IPv4 addresses under Classless Inter-Domain<br /> Routing.<br /><br /> There are several types of unicast addresses in IPv6, in particular,<br /> Global Unicast, site-local unicast (deprecated, see Section 2.5.7),<br /> and Link-Local unicast. There are also some special-purpose subtypes<br /> of Global Unicast, such as IPv6 addresses with embedded IPv4<br /> addresses. Additional address types or subtypes can be defined in<br /> the future.<br /><br /><br /><br /><br />Hinden Standards Track [Page 6]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> IPv6 nodes may have considerable or little knowledge of the internal<br /> structure of the IPv6 address, depending on the role the node plays<br /> (for instance, host versus router). At a minimum, a node may<br /> consider that unicast addresses (including its own) have no internal<br /> structure:<br /><br /> | 128 bits |<br /> +-----------------------------------------------------------------+<br /> | node address |<br /> +-----------------------------------------------------------------+<br /><br /> A slightly sophisticated host (but still rather simple) may<br /> additionally be aware of subnet prefix(es) for the link(s) it is<br /> attached to, where different addresses may have different values for<br /> n:<br /><br /> | n bits | 128-n bits |<br /> +-------------------------------+---------------------------------+<br /> | subnet prefix | interface ID |<br /> +-------------------------------+---------------------------------+<br /><br /> Though a very simple router may have no knowledge of the internal<br /> structure of IPv6 unicast addresses, routers will more generally have<br /> knowledge of one or more of the hierarchical boundaries for the<br /> operation of routing protocols. The known boundaries will differ<br /> from router to router, depending on what positions the router holds<br /> in the routing hierarchy.<br /><br /> Except for the knowledge of the subnet boundary discussed in the<br /> previous paragraphs, nodes should not make any assumptions about the<br /> structure of an IPv6 address.<br /><br />2.5.1. Interface Identifiers<br /><br /> Interface identifiers in IPv6 unicast addresses are used to identify<br /> interfaces on a link. They are required to be unique within a subnet<br /> prefix. It is recommended that the same interface identifier not be<br /> assigned to different nodes on a link. They may also be unique over<br /> a broader scope. In some cases, an interface's identifier will be<br /> derived directly from that interface's link-layer address. The same<br /> interface identifier may be used on multiple interfaces on a single<br /> node, as long as they are attached to different subnets.<br /><br /> Note that the uniqueness of interface identifiers is independent of<br /> the uniqueness of IPv6 addresses. For example, a Global Unicast<br /> address may be created with a local scope interface identifier and a<br /> Link-Local address may be created with a universal scope interface<br /> identifier.<br /><br /><br /><br />Hinden Standards Track [Page 7]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> For all unicast addresses, except those that start with the binary<br /> value 000, Interface IDs are required to be 64 bits long and to be<br /> constructed in Modified EUI-64 format.<br /><br /> Modified EUI-64 format-based interface identifiers may have universal<br /> scope when derived from a universal token (e.g., IEEE 802 48-bit MAC<br /> or IEEE EUI-64 identifiers [EUI64]) or may have local scope where a<br /> global token is not available (e.g., serial links, tunnel end-points)<br /> or where global tokens are undesirable (e.g., temporary tokens for<br /> privacy [PRIV]).<br /><br /> Modified EUI-64 format interface identifiers are formed by inverting<br /> the "u" bit (universal/local bit in IEEE EUI-64 terminology) when<br /> forming the interface identifier from IEEE EUI-64 identifiers. In<br /> the resulting Modified EUI-64 format, the "u" bit is set to one (1)<br /> to indicate universal scope, and it is set to zero (0) to indicate<br /> local scope. The first three octets in binary of an IEEE EUI-64<br /> identifier are as follows:<br /><br /> 0 0 0 1 1 2<br /> |0 7 8 5 6 3|<br /> +----+----+----+----+----+----+<br /> |cccc|ccug|cccc|cccc|cccc|cccc|<br /> +----+----+----+----+----+----+<br /><br /> written in Internet standard bit-order, where "u" is the<br /> universal/local bit, "g" is the individual/group bit, and "c" is the<br /> bits of the company_id. Appendix A, "Creating Modified EUI-64 Format<br /> Interface Identifiers", provides examples on the creation of Modified<br /> EUI-64 format-based interface identifiers.<br /><br /> The motivation for inverting the "u" bit when forming an interface<br /> identifier is to make it easy for system administrators to hand<br /> configure non-global identifiers when hardware tokens are not<br /> available. This is expected to be the case for serial links and<br /> tunnel end-points, for example. The alternative would have been for<br /> these to be of the form 0200:0:0:1, 0200:0:0:2, etc., instead of the<br /> much simpler 0:0:0:1, 0:0:0:2, etc.<br /><br /> IPv6 nodes are not required to validate that interface identifiers<br /> created with modified EUI-64 tokens with the "u" bit set to universal<br /> are unique.<br /><br /> The use of the universal/local bit in the Modified EUI-64 format<br /> identifier is to allow development of future technology that can take<br /> advantage of interface identifiers with universal scope.<br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 8]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> The details of forming interface identifiers are defined in the<br /> appropriate "IPv6 over <link></link>" specification, such as "IPv6 over<br /> Ethernet" [ETHER], and "IPv6 over FDDI" [FDDI].<br /><br />2.5.2. The Unspecified Address<br /><br /> The address 0:0:0:0:0:0:0:0 is called the unspecified address. It<br /> must never be assigned to any node. It indicates the absence of an<br /> address. One example of its use is in the Source Address field of<br /> any IPv6 packets sent by an initializing host before it has learned<br /> its own address.<br /><br /> The unspecified address must not be used as the destination address<br /> of IPv6 packets or in IPv6 Routing headers. An IPv6 packet with a<br /> source address of unspecified must never be forwarded by an IPv6<br /> router.<br /><br />2.5.3. The Loopback Address<br /><br /> The unicast address 0:0:0:0:0:0:0:1 is called the loopback address.<br /> It may be used by a node to send an IPv6 packet to itself. It must<br /> not be assigned to any physical interface. It is treated as having<br /> Link-Local scope, and may be thought of as the Link-Local unicast<br /> address of a virtual interface (typically called the "loopback<br /> interface") to an imaginary link that goes nowhere.<br /><br /> The loopback address must not be used as the source address in IPv6<br /> packets that are sent outside of a single node. An IPv6 packet with<br /> a destination address of loopback must never be sent outside of a<br /> single node and must never be forwarded by an IPv6 router. A packet<br /> received on an interface with a destination address of loopback must<br /> be dropped.<br /><br />2.5.4. Global Unicast Addresses<br /><br /> The general format for IPv6 Global Unicast addresses is as follows:<br /><br /> | n bits | m bits | 128-n-m bits |<br /> +------------------------+-----------+----------------------------+<br /> | global routing prefix | subnet ID | interface ID |<br /> +------------------------+-----------+----------------------------+<br /><br /> where the global routing prefix is a (typically hierarchically-<br /> structured) value assigned to a site (a cluster of subnets/links),<br /> the subnet ID is an identifier of a link within the site, and the<br /> interface ID is as defined in Section 2.5.1.<br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 9]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> All Global Unicast addresses other than those that start with binary<br /> 000 have a 64-bit interface ID field (i.e., n + m = 64), formatted as<br /> described in Section 2.5.1. Global Unicast addresses that start with<br /> binary 000 have no such constraint on the size or structure of the<br /> interface ID field.<br /><br /> Examples of Global Unicast addresses that start with binary 000 are<br /> the IPv6 address with embedded IPv4 addresses described in Section<br /> 2.5.5. An example of global addresses starting with a binary value<br /> other than 000 (and therefore having a 64-bit interface ID field) can<br /> be found in [GLOBAL].<br /><br />2.5.5. IPv6 Addresses with Embedded IPv4 Addresses<br /><br /> Two types of IPv6 addresses are defined that carry an IPv4 address in<br /> the low-order 32 bits of the address. These are the "IPv4-Compatible<br /> IPv6 address" and the "IPv4-mapped IPv6 address".<br /><br />2.5.5.1. IPv4-Compatible IPv6 Address<br /><br /> The "IPv4-Compatible IPv6 address" was defined to assist in the IPv6<br /> transition. The format of the "IPv4-Compatible IPv6 address" is as<br /> follows:<br /><br /> | 80 bits | 16 | 32 bits |<br /> +--------------------------------------+--------------------------+<br /> |0000..............................0000|0000| IPv4 address |<br /> +--------------------------------------+----+---------------------+<br /><br /> Note: The IPv4 address used in the "IPv4-Compatible IPv6 address"<br /> must be a globally-unique IPv4 unicast address.<br /><br /> The "IPv4-Compatible IPv6 address" is now deprecated because the<br /> current IPv6 transition mechanisms no longer use these addresses.<br /> New or updated implementations are not required to support this<br /> address type.<br /><br />2.5.5.2. IPv4-Mapped IPv6 Address<br /><br /> A second type of IPv6 address that holds an embedded IPv4 address is<br /> defined. This address type is used to represent the addresses of<br /> IPv4 nodes as IPv6 addresses. The format of the "IPv4-mapped IPv6<br /> address" is as follows:<br /><br /><br /><br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 10]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /><br /> | 80 bits | 16 | 32 bits |<br /> +--------------------------------------+--------------------------+<br /> |0000..............................0000|FFFF| IPv4 address |<br /> +--------------------------------------+----+---------------------+<br /><br /> See [RFC4038] for background on the usage of the "IPv4-mapped IPv6<br /> address".<br /><br />2.5.6. Link-Local IPv6 Unicast Addresses<br /><br /> Link-Local addresses are for use on a single link. Link-Local<br /> addresses have the following format:<br /><br /> | 10 |<br /> | bits | 54 bits | 64 bits |<br /> +----------+-------------------------+----------------------------+<br /> |1111111010| 0 | interface ID |<br /> +----------+-------------------------+----------------------------+<br /><br /> Link-Local addresses are designed to be used for addressing on a<br /> single link for purposes such as automatic address configuration,<br /> neighbor discovery, or when no routers are present.<br /><br /> Routers must not forward any packets with Link-Local source or<br /> destination addresses to other links.<br /><br />2.5.7. Site-Local IPv6 Unicast Addresses<br /><br /> Site-Local addresses were originally designed to be used for<br /> addressing inside of a site without the need for a global prefix.<br /> Site-local addresses are now deprecated as defined in [SLDEP].<br /><br /> Site-Local addresses have the following format:<br /><br /> | 10 |<br /> | bits | 54 bits | 64 bits |<br /> +----------+-------------------------+----------------------------+<br /> |1111111011| subnet ID | interface ID |<br /> +----------+-------------------------+----------------------------+<br /><br /> The special behavior of this prefix defined in [RFC3513] must no<br /> longer be supported in new implementations (i.e., new implementations<br /> must treat this prefix as Global Unicast).<br /><br /> Existing implementations and deployments may continue to use this<br /> prefix.<br /><br /><br /><br /><br />Hinden Standards Track [Page 11]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br />2.6. Anycast Addresses<br /><br /> An IPv6 anycast address is an address that is assigned to more than<br /> one interface (typically belonging to different nodes), with the<br /> property that a packet sent to an anycast address is routed to the<br /> "nearest" interface having that address, according to the routing<br /> protocols' measure of distance.<br /><br /> Anycast addresses are allocated from the unicast address space, using<br /> any of the defined unicast address formats. Thus, anycast addresses<br /> are syntactically indistinguishable from unicast addresses. When a<br /> unicast address is assigned to more than one interface, thus turning<br /> it into an anycast address, the nodes to which the address is<br /> assigned must be explicitly configured to know that it is an anycast<br /> address.<br /><br /> For any assigned anycast address, there is a longest prefix P of that<br /> address that identifies the topological region in which all<br /> interfaces belonging to that anycast address reside. Within the<br /> region identified by P, the anycast address must be maintained as a<br /> separate entry in the routing system (commonly referred to as a "host<br /> route"); outside the region identified by P, the anycast address may<br /> be aggregated into the routing entry for prefix P.<br /><br /> Note that in the worst case, the prefix P of an anycast set may be<br /> the null prefix, i.e., the members of the set may have no topological<br /> locality. In that case, the anycast address must be maintained as a<br /> separate routing entry throughout the entire Internet, which presents<br /> a severe scaling limit on how many such "global" anycast sets may be<br /> supported. Therefore, it is expected that support for global anycast<br /> sets may be unavailable or very restricted.<br /><br /> One expected use of anycast addresses is to identify the set of<br /> routers belonging to an organization providing Internet service.<br /> Such addresses could be used as intermediate addresses in an IPv6<br /> Routing header, to cause a packet to be delivered via a particular<br /> service provider or sequence of service providers.<br /><br /> Some other possible uses are to identify the set of routers attached<br /> to a particular subnet, or the set of routers providing entry into a<br /> particular routing domain.<br /><br />2.6.1. Required Anycast Address<br /><br /> The Subnet-Router anycast address is predefined. Its format is as<br /> follows:<br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 12]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /><br /> | n bits | 128-n bits |<br /> +------------------------------------------------+----------------+<br /> | subnet prefix | 00000000000000 |<br /> +------------------------------------------------+----------------+<br /><br /> The "subnet prefix" in an anycast address is the prefix that<br /> identifies a specific link. This anycast address is syntactically<br /> the same as a unicast address for an interface on the link with the<br /> interface identifier set to zero.<br /><br /> Packets sent to the Subnet-Router anycast address will be delivered<br /> to one router on the subnet. All routers are required to support the<br /> Subnet-Router anycast addresses for the subnets to which they have<br /> interfaces.<br /><br /> The Subnet-Router anycast address is intended to be used for<br /> applications where a node needs to communicate with any one of the<br /> set of routers.<br /><br />2.7. Multicast Addresses<br /><br /> An IPv6 multicast address is an identifier for a group of interfaces<br /> (typically on different nodes). An interface may belong to any<br /> number of multicast groups. Multicast addresses have the following<br /> format:<br /><br /> | 8 | 4 | 4 | 112 bits |<br /> +------ -+----+----+---------------------------------------------+<br /> |11111111|flgs|scop| group ID |<br /> +--------+----+----+---------------------------------------------+<br /><br /> binary 11111111 at the start of the address identifies the address<br /> as being a multicast address.<br /><br /> +-+-+-+-+<br /> flgs is a set of 4 flags: |0|R|P|T|<br /> +-+-+-+-+<br /><br /> The high-order flag is reserved, and must be initialized to 0.<br /><br /> T = 0 indicates a permanently-assigned ("well-known") multicast<br /> address, assigned by the Internet Assigned Numbers Authority<br /> (IANA).<br /><br /> T = 1 indicates a non-permanently-assigned ("transient" or<br /> "dynamically" assigned) multicast address.<br /><br /><br /><br /><br />Hinden Standards Track [Page 13]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> The P flag's definition and usage can be found in [RFC3306].<br /><br /> The R flag's definition and usage can be found in [RFC3956].<br /><br /> scop is a 4-bit multicast scope value used to limit the scope of<br /> the multicast group. The values are as follows:<br /><br /> 0 reserved<br /> 1 Interface-Local scope<br /> 2 Link-Local scope<br /> 3 reserved<br /> 4 Admin-Local scope<br /> 5 Site-Local scope<br /> 6 (unassigned)<br /> 7 (unassigned)<br /> 8 Organization-Local scope<br /> 9 (unassigned)<br /> A (unassigned)<br /> B (unassigned)<br /> C (unassigned)<br /> D (unassigned)<br /> E Global scope<br /> F reserved<br /><br /> Interface-Local scope spans only a single interface on a node<br /> and is useful only for loopback transmission of multicast.<br /><br /> Link-Local multicast scope spans the same topological region as<br /> the corresponding unicast scope.<br /><br /> Admin-Local scope is the smallest scope that must be<br /> administratively configured, i.e., not automatically derived<br /> from physical connectivity or other, non-multicast-related<br /> configuration.<br /><br /> Site-Local scope is intended to span a single site.<br /><br /> Organization-Local scope is intended to span multiple sites<br /> belonging to a single organization.<br /><br /> scopes labeled "(unassigned)" are available for administrators<br /> to define additional multicast regions.<br /><br /> group ID identifies the multicast group, either permanent or<br /> transient, within the given scope. Additional definitions of the<br /> multicast group ID field structure are provided in [RFC3306].<br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 14]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> The "meaning" of a permanently-assigned multicast address is<br /> independent of the scope value. For example, if the "NTP servers<br /> group" is assigned a permanent multicast address with a group ID of<br /> 101 (hex), then<br /><br /> FF01:0:0:0:0:0:0:101 means all NTP servers on the same interface<br /> (i.e., the same node) as the sender.<br /><br /> FF02:0:0:0:0:0:0:101 means all NTP servers on the same link as the<br /> sender.<br /><br /> FF05:0:0:0:0:0:0:101 means all NTP servers in the same site as the<br /> sender.<br /><br /> FF0E:0:0:0:0:0:0:101 means all NTP servers in the Internet.<br /><br /> Non-permanently-assigned multicast addresses are meaningful only<br /> within a given scope. For example, a group identified by the non-<br /> permanent, site-local multicast address FF15:0:0:0:0:0:0:101 at one<br /> site bears no relationship to a group using the same address at a<br /> different site, nor to a non-permanent group using the same group ID<br /> with a different scope, nor to a permanent group with the same group<br /> ID.<br /><br /> Multicast addresses must not be used as source addresses in IPv6<br /> packets or appear in any Routing header.<br /><br /> Routers must not forward any multicast packets beyond of the scope<br /> indicated by the scop field in the destination multicast address.<br /><br /> Nodes must not originate a packet to a multicast address whose scop<br /> field contains the reserved value 0; if such a packet is received, it<br /> must be silently dropped. Nodes should not originate a packet to a<br /> multicast address whose scop field contains the reserved value F; if<br /> such a packet is sent or received, it must be treated the same as<br /> packets destined to a global (scop E) multicast address.<br /><br />2.7.1. Pre-Defined Multicast Addresses<br /><br /> The following well-known multicast addresses are pre-defined. The<br /> group IDs defined in this section are defined for explicit scope<br /> values.<br /><br /> Use of these group IDs for any other scope values, with the T flag<br /> equal to 0, is not allowed.<br /><br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 15]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> Reserved Multicast Addresses: FF00:0:0:0:0:0:0:0<br /> FF01:0:0:0:0:0:0:0<br /> FF02:0:0:0:0:0:0:0<br /> FF03:0:0:0:0:0:0:0<br /> FF04:0:0:0:0:0:0:0<br /> FF05:0:0:0:0:0:0:0<br /> FF06:0:0:0:0:0:0:0<br /> FF07:0:0:0:0:0:0:0<br /> FF08:0:0:0:0:0:0:0<br /> FF09:0:0:0:0:0:0:0<br /> FF0A:0:0:0:0:0:0:0<br /> FF0B:0:0:0:0:0:0:0<br /> FF0C:0:0:0:0:0:0:0<br /> FF0D:0:0:0:0:0:0:0<br /> FF0E:0:0:0:0:0:0:0<br /> FF0F:0:0:0:0:0:0:0<br /><br /> The above multicast addresses are reserved and shall never be<br /> assigned to any multicast group.<br /><br /> All Nodes Addresses: FF01:0:0:0:0:0:0:1<br /> FF02:0:0:0:0:0:0:1<br /><br /> The above multicast addresses identify the group of all IPv6 nodes,<br /> within scope 1 (interface-local) or 2 (link-local).<br /><br /> All Routers Addresses: FF01:0:0:0:0:0:0:2<br /> FF02:0:0:0:0:0:0:2<br /> FF05:0:0:0:0:0:0:2<br /><br /> The above multicast addresses identify the group of all IPv6 routers,<br /> within scope 1 (interface-local), 2 (link-local), or 5 (site-local).<br /><br /> Solicited-Node Address: FF02:0:0:0:0:1:FFXX:XXXX<br /><br /> Solicited-Node multicast address are computed as a function of a<br /> node's unicast and anycast addresses. A Solicited-Node multicast<br /> address is formed by taking the low-order 24 bits of an address<br /> (unicast or anycast) and appending those bits to the prefix<br /> FF02:0:0:0:0:1:FF00::/104 resulting in a multicast address in the<br /> range<br /><br /> FF02:0:0:0:0:1:FF00:0000<br /><br /> to<br /><br /> FF02:0:0:0:0:1:FFFF:FFFF<br /><br /><br /><br /><br />Hinden Standards Track [Page 16]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> For example, the Solicited-Node multicast address corresponding to<br /> the IPv6 address 4037::01:800:200E:8C6C is FF02::1:FF0E:8C6C. IPv6<br /> addresses that differ only in the high-order bits (e.g., due to<br /> multiple high-order prefixes associated with different aggregations)<br /> will map to the same Solicited-Node address, thereby reducing the<br /> number of multicast addresses a node must join.<br /><br /> A node is required to compute and join (on the appropriate interface)<br /> the associated Solicited-Node multicast addresses for all unicast and<br /> anycast addresses that have been configured for the node's interfaces<br /> (manually or automatically).<br /><br />2.8. A Node's Required Addresses<br /><br /> A host is required to recognize the following addresses as<br /> identifying itself:<br /><br /> o Its required Link-Local address for each interface.<br /><br /> o Any additional Unicast and Anycast addresses that have been<br /> configured for the node's interfaces (manually or<br /> automatically).<br /><br /> o The loopback address.<br /><br /> o The All-Nodes multicast addresses defined in Section 2.7.1.<br /><br /> o The Solicited-Node multicast address for each of its unicast and<br /> anycast addresses.<br /><br /> o Multicast addresses of all other groups to which the node<br /> belongs.<br /><br /> A router is required to recognize all addresses that a host is<br /> required to recognize, plus the following addresses as identifying<br /> itself:<br /><br /> o The Subnet-Router Anycast addresses for all interfaces for which<br /> it is configured to act as a router.<br /><br /> o All other Anycast addresses with which the router has been<br /> configured.<br /><br /> o The All-Routers multicast addresses defined in Section 2.7.1.<br /><br /><br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 17]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br />3. Security Considerations<br /><br /> IPv6 addressing documents do not have any direct impact on Internet<br /> infrastructure security. Authentication of IPv6 packets is defined<br /> in [AUTH].<br /><br />4. IANA Considerations<br /><br /> The "IPv4-Compatible IPv6 address" is deprecated by this document.<br /> The IANA should continue to list the address block containing these<br /> addresses at http://www.iana.org/assignments/ipv6-address-space as<br /> "Reserved by IETF" and not reassign it for any other purpose. For<br /> example:<br /><br /> 0000::/8 Reserved by IETF [RFC3513] [1]<br /><br /> The IANA has added the following note and link to this address block.<br /><br /> [5] 0000::/96 was previously defined as the "IPv4-Compatible IPv6<br /> address" prefix. This definition has been deprecated by RFC<br /> 4291.<br /><br /> The IANA has updated the references for the IPv6 Address Architecture<br /> in the IANA registries accordingly.<br /><br />5. Acknowledgements<br /><br /> The authors would like to acknowledge the contributions of Paul<br /> Francis, Scott Bradner, Jim Bound, Brian Carpenter, Matt Crawford,<br /> Deborah Estrin, Roger Fajman, Bob Fink, Peter Ford, Bob Gilligan,<br /> Dimitry Haskin, Tom Harsch, Christian Huitema, Tony Li, Greg<br /> Minshall, Thomas Narten, Erik Nordmark, Yakov Rekhter, Bill Simpson,<br /> Sue Thomson, Markku Savela, Larry Masinter, Jun-ichiro Itojun Hagino,<br /> Tatuya Jinmei, Suresh Krishnan, and Mahmood Ali.<br /><br />6. References<br /><br />6.1. Normative References<br /><br /> [IPV6] Deering, S. and R. Hinden, "Internet Protocol, Version 6<br /> (IPv6) Specification", RFC 2460, December 1998.<br /><br />6.2. Informative References<br /><br /> [AUTH] Kent, S. and R. Atkinson, "IP Authentication Header", RFC<br /> 2402, November 1998.<br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 18]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> [CIDR] Fuller, V., Li, T., Yu, J., and K. Varadhan, "Classless<br /> Inter-Domain Routing (CIDR): an Address Assignment and<br /> Aggregation Strategy", RFC 1519, September 1993.<br /><br /> [ETHER] Crawford, M., "Transmission of IPv6 Packets over Ethernet<br /> Networks", RFC 2464, December 1998.<br /><br /> [EUI64] IEEE, "Guidelines for 64-bit Global Identifier (EUI-64)<br /> Registration Authority",<br /> http://standards.ieee.org/regauth/oui/tutorials/EUI64.html,<br /> March 1997.<br /><br /> [FDDI] Crawford, M., "Transmission of IPv6 Packets over FDDI<br /> Networks", RFC 2467, December 1998.<br /><br /> [GLOBAL] Hinden, R., Deering, S., and E. Nordmark, "IPv6 Global<br /> Unicast Address Format", RFC 3587, August 2003.<br /><br /> [PRIV] Narten, T. and R. Draves, "Privacy Extensions for Stateless<br /> Address Autoconfiguration in IPv6", RFC 3041, January 2001.<br /><br /> [RFC3513] Hinden, R. and S. Deering, "Internet Protocol Version 6<br /> (IPv6) Addressing Architecture", RFC 3513, April 2005.<br /><br /> [RFC3306] Haberman, B. and D. Thaler, "Unicast-Prefix-based IPv6<br /> Multicast Addresses", RFC 3306, August 2002.<br /><br /> [RFC3956] Savola, P. and B. Haberman, "Embedding the Rendezvous Point<br /> (RP) Address in an IPv6 Multicast Address", RFC 3956,<br /> November 2004.<br /><br /> [RFC4038] Shin, M-K., Hong, Y-G., Hagino, J., Savola, P., and E.<br /> Castro, "Application Aspects of IPv6 Transition", RFC 4038,<br /> March 2005.<br /><br /> [SLDEP] Huitema, C. and B. Carpenter, "Deprecating Site Local<br /> Addresses", RFC 3879, September 2004.<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 19]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br />Appendix A: Creating Modified EUI-64 Format Interface Identifiers<br /><br /> Depending on the characteristics of a specific link or node, there<br /> are a number of approaches for creating Modified EUI-64 format<br /> interface identifiers. This appendix describes some of these<br /> approaches.<br /><br /> Links or Nodes with IEEE EUI-64 Identifiers<br /><br /> The only change needed to transform an IEEE EUI-64 identifier to an<br /> interface identifier is to invert the "u" (universal/local) bit. An<br /> example is a globally unique IEEE EUI-64 identifier of the form:<br /><br /> |0 1|1 3|3 4|4 6|<br /> |0 5|6 1|2 7|8 3|<br /> +----------------+----------------+----------------+----------------+<br /> |cccccc0gcccccccc|ccccccccmmmmmmmm|mmmmmmmmmmmmmmmm|mmmmmmmmmmmmmmmm|<br /> +----------------+----------------+----------------+----------------+<br /><br /> where "c" is the bits of the assigned company_id, "0" is the value of<br /> the universal/local bit to indicate universal scope, "g" is<br /> individual/group bit, and "m" is the bits of the manufacturer-<br /> selected extension identifier. The IPv6 interface identifier would<br /> be of the form:<br /><br /> |0 1|1 3|3 4|4 6|<br /> |0 5|6 1|2 7|8 3|<br /> +----------------+----------------+----------------+----------------+<br /> |cccccc1gcccccccc|ccccccccmmmmmmmm|mmmmmmmmmmmmmmmm|mmmmmmmmmmmmmmmm|<br /> +----------------+----------------+----------------+----------------+<br /><br /> The only change is inverting the value of the universal/local bit.<br /><br /> Links or Nodes with IEEE 802 48-bit MACs<br /><br /> [EUI64] defines a method to create an IEEE EUI-64 identifier from an<br /> IEEE 48-bit MAC identifier. This is to insert two octets, with<br /> hexadecimal values of 0xFF and 0xFE (see the Note at the end of<br /> appendix), in the middle of the 48-bit MAC (between the company_id<br /> and vendor-supplied id). An example is the 48-bit IEEE MAC with<br /> Global scope:<br /><br /> |0 1|1 3|3 4|<br /> |0 5|6 1|2 7|<br /> +----------------+----------------+----------------+<br /> |cccccc0gcccccccc|ccccccccmmmmmmmm|mmmmmmmmmmmmmmmm|<br /> +----------------+----------------+----------------+<br /><br /><br /><br /><br />Hinden Standards Track [Page 20]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> where "c" is the bits of the assigned company_id, "0" is the value of<br /> the universal/local bit to indicate Global scope, "g" is<br /> individual/group bit, and "m" is the bits of the manufacturer-<br /> selected extension identifier. The interface identifier would be of<br /> the form:<br /><br /> |0 1|1 3|3 4|4 6|<br /> |0 5|6 1|2 7|8 3|<br /> +----------------+----------------+----------------+----------------+<br /> |cccccc1gcccccccc|cccccccc11111111|11111110mmmmmmmm|mmmmmmmmmmmmmmmm|<br /> +----------------+----------------+----------------+----------------+<br /><br /> When IEEE 802 48-bit MAC addresses are available (on an interface or<br /> a node), an implementation may use them to create interface<br /> identifiers due to their availability and uniqueness properties.<br /><br /> Links with Other Kinds of Identifiers<br /><br /> There are a number of types of links that have link-layer interface<br /> identifiers other than IEEE EUI-64 or IEEE 802 48-bit MACs. Examples<br /> include LocalTalk and Arcnet. The method to create a Modified EUI-64<br /> format identifier is to take the link identifier (e.g., the LocalTalk<br /> 8-bit node identifier) and zero fill it to the left. For example, a<br /> LocalTalk 8-bit node identifier of hexadecimal value 0x4F results in<br /> the following interface identifier:<br /><br /> |0 1|1 3|3 4|4 6|<br /> |0 5|6 1|2 7|8 3|<br /> +----------------+----------------+----------------+----------------+<br /> |0000000000000000|0000000000000000|0000000000000000|0000000001001111|<br /> +----------------+----------------+----------------+----------------+<br /><br /> Note that this results in the universal/local bit set to "0" to<br /> indicate local scope.<br /><br /> Links without Identifiers<br /><br /> There are a number of links that do not have any type of built-in<br /> identifier. The most common of these are serial links and configured<br /> tunnels. Interface identifiers that are unique within a subnet<br /> prefix must be chosen.<br /><br /> When no built-in identifier is available on a link, the preferred<br /> approach is to use a universal interface identifier from another<br /> interface or one that is assigned to the node itself. When using<br /> this approach, no other interface connecting the same node to the<br /> same subnet prefix may use the same identifier.<br /><br /><br /><br /><br />Hinden Standards Track [Page 21]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> If there is no universal interface identifier available for use on<br /> the link, the implementation needs to create a local-scope interface<br /> identifier. The only requirement is that it be unique within a<br /> subnet prefix. There are many possible approaches to select a<br /> subnet-prefix-unique interface identifier. These include the<br /> following:<br /><br /> Manual Configuration<br /> Node Serial Number<br /> Other Node-Specific Token<br /><br /> The subnet-prefix-unique interface identifier should be generated in<br /> a manner such that it does not change after a reboot of a node or if<br /> interfaces are added or deleted from the node.<br /><br /> The selection of the appropriate algorithm is link and implementation<br /> dependent. The details on forming interface identifiers are defined<br /> in the appropriate "IPv6 over <link></link>" specification. It is strongly<br /> recommended that a collision detection algorithm be implemented as<br /> part of any automatic algorithm.<br /><br /> Note: [EUI-64] actually defines 0xFF and 0xFF as the bits to be<br /> inserted to create an IEEE EUI-64 identifier from an IEEE MAC-<br /> 48 identifier. The 0xFF and 0xFE values are used when starting<br /> with an IEEE EUI-48 identifier. The incorrect value was used<br /> in earlier versions of the specification due to a<br /> misunderstanding about the differences between IEEE MAC-48 and<br /> EUI-48 identifiers.<br /><br /> This document purposely continues the use of 0xFF and 0xFE<br /> because it meets the requirements for IPv6 interface<br /> identifiers (i.e., that they must be unique on the link), IEEE<br /> EUI-48 and MAC-48 identifiers are syntactically equivalent, and<br /> that it doesn't cause any problems in practice.<br /><br />Appendix B: Changes from RFC 3513<br /><br /> The following changes were made from RFC 3513, "IP Version 6<br /> Addressing Architecture":<br /><br /> o The restrictions on using IPv6 anycast addresses were removed<br /> because there is now sufficient experience with the use of anycast<br /> addresses, the issues are not specific to IPv6, and the GROW<br /> working group is working in this area.<br /><br /> o Deprecated the Site-Local unicast prefix. Changes include the<br /> following:<br /><br /><br /><br /><br />Hinden Standards Track [Page 22]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br /> - Removed Site-Local from special list of prefixes in Section<br /> 2.4.<br /><br /> - Split section titled "Local-use IPv6 Unicast Addresses" into<br /> two sections, "Link-Local IPv6 Unicast Addresses" and "Site-<br /> Local IPv6 Unicast Addresses".<br /><br /> - Added text to new section describing Site-Local deprecation.<br /><br /> o Changes to resolve issues raised in IAB response to Robert Elz<br /> appeal. Changes include the following:<br /><br /> - Added clarification to Section 2.5 that nodes should make no<br /> assumptions about the structure of an IPv6 address.<br /><br /> - Changed the text in Section 2.5.1 and Appendix A to refer to<br /> the Modified EUI-64 format interface identifiers with the "u"<br /> bit set to one (1) as universal.<br /><br /> - Added clarification to Section 2.5.1 that IPv6 nodes are not<br /> required to validate that interface identifiers created in<br /> Modified EUI-64 format with the "u" bit set to one are unique.<br /><br /> o Changed the reference indicated in Section 2.5.4 "Global Unicast<br /> Addresses" to RFC 3587.<br /><br /> o Removed mention of NSAP addresses in examples.<br /><br /> o Clarified that the "x" in the textual representation can be one to<br /> four digits.<br /><br /> o Deprecated the "IPv6 Compatible Address" because it is not being<br /> used in the IPv6 transition mechanisms.<br /><br /> o Added the "R" and "P" flags to Section 2.7 on multicast addresses,<br /> and pointers to the documents that define them.<br /><br /> o Editorial changes.<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 23]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br />Authors' Addresses<br /><br /> Robert M. Hinden<br /> Nokia<br /> 313 Fairchild Drive<br /> Mountain View, CA 94043<br /> USA<br /><br /> Phone: +1 650 625-2004<br /> EMail: bob.hinden@nokia.com<br /><br /><br /> Stephen E. Deering<br /> Cisco Systems, Inc.<br /> 170 West Tasman Drive<br /> San Jose, CA 95134-1706<br /> USA<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 24]<br /> <br />RFC 4291 IPv6 Addressing Architecture February 2006<br /><br /><br />Full Copyright Statement<br /><br /> Copyright (C) The Internet Society (2006).<br /><br /> This document is subject to the rights, licenses and restrictions<br /> contained in BCP 78, and except as set forth therein, the authors<br /> retain all their rights.<br /><br /> This document and the information contained herein are provided on an<br /> "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS<br /> OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET<br /> ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED,<br /> INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE<br /> INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED<br /> WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.<br /><br />Intellectual Property<br /><br /> The IETF takes no position regarding the validity or scope of any<br /> Intellectual Property Rights or other rights that might be claimed to<br /> pertain to the implementation or use of the technology described in<br /> this document or the extent to which any license under such rights<br /> might or might not be available; nor does it represent that it has<br /> made any independent effort to identify any such rights. Information<br /> on the procedures with respect to rights in RFC documents can be<br /> found in BCP 78 and BCP 79.<br /><br /> Copies of IPR disclosures made to the IETF Secretariat and any<br /> assurances of licenses to be made available, or the result of an<br /> attempt made to obtain a general license or permission for the use of<br /> such proprietary rights by implementers or users of this<br /> specification can be obtained from the IETF on-line IPR repository at<br /> http://www.ietf.org/ipr.<br /><br /> The IETF invites any interested party to bring to its attention any<br /> copyrights, patents or patent applications, or other proprietary<br /> rights that may cover technology that may be required to implement<br /> this standard. Please address the information to the IETF at<br /> ietf-ipr@ietf.org.<br /><br />Acknowledgement<br /><br /> Funding for the RFC Editor function is provided by the IETF<br /> Administrative Support Activity (IASA).<br /><br /><br /><br /><br /><br /><br /><br />Hinden Standards Track [Page 25]<br /> <br /></pre><br /><div class="zemanta-pixie" style="height: 15px; margin-top: 10px;"><br /><img alt="" class="zemanta-pixie-img" src="http://img.zemanta.com/pixy.gif?x-id=b9b83919-29a1-4dbf-940d-05cbeff21651" style="border: none; float: right;" /></div><br /></div><br />

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