Changeset 1228

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Timestamp:
03/11/10 08:32:22 (5 months ago)
Author:
Hugo
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iDNS: saved latest tGlossary.txt

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1 modified

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  • trunk/unxsBind/data/tGlossary.txt

    r1095 r1228  
    700700\ 
    701701 
     702292     IPv6 Number     1       1       1268297008      1       1268297091      This next generation of the Internet Protocol, aimed to replace IPv4 on the\ 
     703Internet, was eventually named Internet Protocol Version 6 (IPv6) in 1995[3][4]\ 
     704The address size was increased from 32 to 128 bits or 16 octets, which, even\ 
     705with a generous assignment of network blocks, is deemed sufficient for the\ 
     706foreseeable future. <br>\ 
     707<br>\ 
     708<img alt=""\ 
     709src="http://upload.wikimedia.org/wikipedia/commons/thumb/1/15/Ipv6_address.svg/300px-Ipv6_address.svg.png"\ 
     710width="300" height="180">\ 
     711<br>\ 
     712<br>\ 
     713Example of an IPv6 address:<br>\ 
     714<br>\ 
     7152001:0db8:85a3:08d3:1319:8a2e:0370:7334\ 
     716\ 
     717 
     718293     e164.arpa Origin or FQDN        1       1       1268297337      1       1268297361      The ITU ENUM allocates a specific zone, namely "e164.arpa" for use with ENUM\ 
     719E.164 numbers on the IP side of the network. <a\ 
     720href=http://tools.ietf.org/html/rfc3761 class=darkLink target=_blank>RFC\ 
     7213761</a> define how any ENUM number, such as +1 555 42 42 can be transformed\ 
     722into a Uniform Resource Identifier (URI), by reversing the numbers, separating\ 
     723them with dots and adding the e164.arpa suffix thus:<br>\ 
     7242.4.2.4.5.5.5.1.e164.arpa<br>\ 
     725<br>\ 
     726The URI can then be used to obtain the Internet Protocol addresses for services\ 
     727such as the Session Initiation Protocol (SIP) VoIP telephony. In the Domain Name\ 
     728System, NAPTR records are used to set the subscriber call forwarding/termination\ 
     729preferences. Therefore the whole system can 'translate' E.164 addresses to SIP\ 
     730addresses.<br>\ 
     731\ 
     732 
     733294     Order   1       1       1268299458      1       1268299531      This value indicates the priority of multiple NAPTR records used. The lower the\ 
     734value, the higher the priority.<br>\ 
     735<br>\ 
     736E.g.:<br>\ 
     737<br>\ 
     738$ORIGIN 4.3.2.1.5.5.5.0.0.8.1.e164.arpa.<br>\ 
     739IN NAPTR 100 10 "U" "E2U+sip" "!^.*$!sip:customer-service@example.com!i" .<br>\ 
     740IN NAPTR 102 10 "U" "E2U+email" "!^.*$!mailto:information@example.com!i" .<br>\ 
     741<br>\ 
     742<br>\ 
     743The first record has an order value of 100, which is lower than 102, so it is\ 
     744picked first.\ 
     745\ 
     746 
     747295     Preference      1       1       1268299886      0       0       This value indicates the priority of multiple NAPTR records with the same\ 
     748preference value. The lower the\ 
     749value, the higher the priority.<br>\ 
     750<br>\ 
     751E.g.:<br>\ 
     752<br>\ 
     753$ORIGIN 4.3.2.1.5.5.5.0.0.8.1.e164.arpa.<br>\ 
     754IN NAPTR 100 10 "U" "E2U+sip" "!^.*$!sip:customer-service@example.com!i" .<br>\ 
     755IN NAPTR 100 9 "U" "E2U+email" "!^.*$!mailto:information@example.com!i" .<br>\ 
     756<br>\ 
     757<br>\ 
     758The records above have the same order value (100) yet preference differs.\ 
     759\ 
     760