Bv9ARM.ch09.html revision f9cdef0ba5cd21db91318f290c25b0ab3d28f3df
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein>Appendices</TITLE
fb84f9014321c5f33c4682de5661b579fcde318fAndreas GustafssonNAME="GENERATOR"
fb84f9014321c5f33c4682de5661b579fcde318fAndreas GustafssonCONTENT="Modular DocBook HTML Stylesheet Version 1.73
af5073d03288a53b646ec3b807ac25ced64d7879Mark AndrewsTITLE="BIND 9 Administrator Reference Manual"
af5073d03288a53b646ec3b807ac25ced64d7879Mark AndrewsREL="PREVIOUS"
af5073d03288a53b646ec3b807ac25ced64d7879Mark AndrewsTITLE="Troubleshooting"
fb84f9014321c5f33c4682de5661b579fcde318fAndreas GustafssonCLASS="appendix"
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fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserCLASS="NAVHEADER"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserSUMMARY="Header navigation table"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinCELLPADDING="0"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserCELLSPACING="0"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserALIGN="center"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>BIND 9 Administrator Reference Manual</TH
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinVALIGN="bottom"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinACCESSKEY="P"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinALIGN="center"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinVALIGN="bottom"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinVALIGN="bottom"
d8620c7234281056fdfd2ee40cf16636b8281092Tinderbox UserCLASS="appendix"
2eeb74d1cf5355dd98f6d507a10086e16bb08c4bTinderbox User>Appendix A. Appendices</A
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein>Table of Contents</B
b49958b502ee45022010a0b1bed3968f598895a4Automatic Updater>Acknowledgments</A
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserHREF="Bv9ARM.ch09.html#historical_dns_information"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>General <SPAN
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserCLASS="acronym"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein> Reference Information</A
61e1dc26d62c2a0059e3ca7efe2ad0f4a5b8df92Mark AndrewsHREF="Bv9ARM.ch09.html#bibliography"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein>Bibliography (and Suggested Reading)</A
2eeb74d1cf5355dd98f6d507a10086e16bb08c4bTinderbox UserNAME="AEN4717"
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox User>A.1. Acknowledgments</A
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox UserNAME="AEN4719"
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox User>A.1.1. A Brief History of the <SPAN
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox UserCLASS="acronym"
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox UserCLASS="acronym"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>Although the "official" beginning of the Domain Name
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox User System occurred in 1984 with the publication of RFC 920, the
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User core of the new system was described in 1983 in RFCs 882 and
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein 883. From 1984 to 1987, the ARPAnet (the precursor to today's
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User Internet) became a testbed of experimentation for developing the
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox User new naming/addressing scheme in an rapidly expanding,
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox User operational network environment. New RFCs were written and
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox User published in 1987 that modified the original documents to
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox User incorporate improvements based on the working model. RFC 1034,
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox User "Domain Names-Concepts and Facilities", and RFC 1035, "Domain
2eeb74d1cf5355dd98f6d507a10086e16bb08c4bTinderbox User Names-Implementation and Specification" were published and
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox User became the standards upon which all <SPAN
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserCLASS="acronym"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein> implementations are
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>The first working domain name server, called "Jeeves", was
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Userwritten in 1983-84 by Paul Mockapetris for operation on DEC Tops-20
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox Usermachines located at the University of Southern California's Information
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserSciences Institute (USC-ISI) and SRI International's Network Information
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCenter (SRI-NIC). A <SPAN
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserCLASS="acronym"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User> server for Unix machines, the Berkeley Internet
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserName Domain (<SPAN
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserCLASS="acronym"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>) package, was written soon after by a group of
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox Usergraduate students at the University of California at Berkeley under
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox Usera grant from the US Defense Advanced Research Projects Administration
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox User(DARPA). Versions of <SPAN
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="acronym"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox User> through 4.8.3 were maintained by the Computer
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserSystems Research Group (CSRG) at UC Berkeley. Douglas Terry, Mark
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserPainter, David Riggle and Songnian Zhou made up the initial <SPAN
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="acronym"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox Userproject team. After that, additional work on the software package
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Userwas done by Ralph Campbell. Kevin Dunlap, a Digital Equipment Corporation
2eeb74d1cf5355dd98f6d507a10086e16bb08c4bTinderbox Useremployee on loan to the CSRG, worked on <SPAN
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="acronym"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox User> for 2 years, from 1985
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox Userto 1987. Many other people also contributed to <SPAN
2eeb74d1cf5355dd98f6d507a10086e16bb08c4bTinderbox UserCLASS="acronym"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Userduring that time: Doug Kingston, Craig Partridge, Smoot Carl-Mitchell,
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserMike Muuss, Jim Bloom and Mike Schwartz. <SPAN
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="acronym"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User> maintenance was subsequently
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox Userhandled by Mike Karels and O. Kure.</P
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="acronym"
2eeb74d1cf5355dd98f6d507a10086e16bb08c4bTinderbox User> versions 4.9 and 4.9.1 were released by Digital Equipment
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCorporation (now Compaq Computer Corporation). Paul Vixie, then
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox Usera DEC employee, became <SPAN
2eeb74d1cf5355dd98f6d507a10086e16bb08c4bTinderbox UserCLASS="acronym"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox User>'s primary caretaker. Paul was assisted
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Userby Phil Almquist, Robert Elz, Alan Barrett, Paul Albitz, Bryan Beecher, Andrew
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserPartan, Andy Cherenson, Tom Limoncelli, Berthold Paffrath, Fuat
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserBaran, Anant Kumar, Art Harkin, Win Treese, Don Lewis, Christophe
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserWolfhugel, and others.</P
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="acronym"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox User> Version 4.9.2 was sponsored by Vixie Enterprises. Paul
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserVixie became <SPAN
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="acronym"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="acronym"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User> versions from 4.9.3 onward have been developed and maintained
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox Userby the Internet Software Consortium with support being provided
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Userby ISC's sponsors. As co-architects/programmers, Bob Halley and
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserPaul Vixie released the first production-ready version of <SPAN
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="acronym"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox User8 in May 1997.</P
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="acronym"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox User> development work is made possible today by the sponsorship
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox Userof several corporations, and by the tireless work efforts of numerous
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Userindividuals.</P
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserNAME="historical_dns_information"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox User>A.2. General <SPAN
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="acronym"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox User> Reference Information</A
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserNAME="ipv6addresses"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox User>A.2.1. IPv6 addresses (AAAA)</A
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox User>IPv6 addresses are 128-bit identifiers for interfaces and
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Usersets of interfaces which were introduced in the <SPAN
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="acronym"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox User> to facilitate
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox Userscalable Internet routing. There are three types of addresses: <SPAN
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="emphasis"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="emphasis"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Useran identifier for a single interface; <SPAN
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="emphasis"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="emphasis"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox Useran identifier for a set of interfaces; and <SPAN
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="emphasis"
0eea9763d88e3edf9b6de585f7cfbb08de977124Tinderbox UserCLASS="emphasis"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Useran identifier for a set of interfaces. Here we describe the global
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinUnicast address scheme. For more information, see RFC 2374.</P
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein>The aggregatable global Unicast address format is as follows:</P
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinCLASS="informaltable"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserNAME="AEN4755"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinCELLPADDING="3"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinCLASS="CALSTABLE"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
370c55dfcdc559b8761ef3eb4921498580caf14cAutomatic UpdaterVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
1879ff49326b49a9e4eadaca193c631409bf8575Tinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox User>Interface ID</P
1879ff49326b49a9e4eadaca193c631409bf8575Tinderbox UserVALIGN="MIDDLE"
1879ff49326b49a9e4eadaca193c631409bf8575Tinderbox User><------ Public Topology
1879ff49326b49a9e4eadaca193c631409bf8575Tinderbox User------></P
1879ff49326b49a9e4eadaca193c631409bf8575Tinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
a24330c4805a224191ab687d0291963062fe3355Tinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User><-Site Topology-></P
4fe1df3962f1f37304b6789b2d1a33a70fcb0b28Tinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User><------ Interface Identifier ------></P
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserCLASS="informaltable"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserNAME="AEN4824"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserCELLPADDING="3"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserCLASS="CALSTABLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox User>Format Prefix (001)</P
e9ed929fd1a190f29391be9c7ae324e7e56ff9c9Tinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>Top-Level Aggregation Identifier</P
77dccf2a5d9327d16b4374a135cdb99bdd48620eAutomatic UpdaterVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>Reserved for future use</P
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
78ec962d9828200d18cd0e41b7d6b9792a74923dTinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>Next-Level Aggregation Identifier</P
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox User>Site-Level Aggregation Identifier</P
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox User>INTERFACE ID</P
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserVALIGN="MIDDLE"
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox UserVALIGN="MIDDLE"
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox User>Interface Identifier</P
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserCLASS="emphasis"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserCLASS="emphasis"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox User>Public Topology</I
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox User> is provided by the
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox Userupstream provider or ISP, and (roughly) corresponds to the IPv4 <SPAN
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserCLASS="emphasis"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserCLASS="emphasis"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Userof the address range. The <SPAN
2eeb74d1cf5355dd98f6d507a10086e16bb08c4bTinderbox UserCLASS="emphasis"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserCLASS="emphasis"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox User>Site Topology</I
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Userwhere you can subnet this space, much the same as subnetting an
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserIPv4 /16 network into /24 subnets. The <SPAN
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserCLASS="emphasis"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserCLASS="emphasis"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox User>Interface Identifier</I
90153b6536f7a5078e1c157c980110dbcd7fe205Mark Andrewsthe address of an individual interface on a given network. (With
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserIPv6, addresses belong to interfaces rather than machines.)</P
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox User>The subnetting capability of IPv6 is much more flexible than
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox Userthat of IPv4: subnetting can now be carried out on bit boundaries,
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Userin much the same way as Classless InterDomain Routing (CIDR).</P
2eeb74d1cf5355dd98f6d507a10086e16bb08c4bTinderbox User>The Interface Identifier must be unique on that network. On
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox Userethernet networks, one way to ensure this is to set the address
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox Userto the first three bytes of the hardware address, "FFFE", then the
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox Userlast three bytes of the hardware address. The lowest significant
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Userbit of the first byte should then be complemented. Addresses are
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Userwritten as 32-bit blocks separated with a colon, and leading zeros
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox Userof a block may be omitted, for example:</P
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserCLASS="command"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>2001:4f8:201:9:a00:20ff:fe81:2b32</B
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>IPv6 address specifications are likely to contain long strings
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox Userof zeros, so the architects have included a shorthand for specifying
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox Userthem. The double colon (`::') indicates the longest possible string
6bcac4b58d16ee91184a72bd4ff05c41538fd932Tinderbox Userof zeros that can fit, and can be used only once in an address.</P
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox UserNAME="bibliography"
8e16b3078757ba3010c24aef805e9e29ed19518bTinderbox User>A.3. Bibliography (and Suggested Reading)</A
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein>A.3.1. Request for Comments (RFCs)</A
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>Specification documents for the Internet protocol suite, including
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserCLASS="acronym"
2eeb74d1cf5355dd98f6d507a10086e16bb08c4bTinderbox User>, are published as part of the Request for Comments (RFCs)
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austeinseries of technical notes. The standards themselves are defined
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austeinby the Internet Engineering Task Force (IETF) and the Internet Engineering
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinSteering Group (IESG). RFCs can be obtained online via FTP at
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinTARGET="_top"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinCLASS="replaceable"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinCLASS="replaceable"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austeinthe number of the RFC). RFCs are also available via the Web at
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinTARGET="_top"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinNAME="AEN4892"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein>Bibliography</A
fb84f9014321c5f33c4682de5661b579fcde318fAndreas GustafssonCLASS="bibliodiv"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinNAME="AEN4893"
2eeb74d1cf5355dd98f6d507a10086e16bb08c4bTinderbox UserCLASS="biblioentry"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinNAME="AEN4895"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>[RFC974] <SPAN
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserCLASS="AUTHOR"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>C. Partridge</SPAN
057cafaa3df7be7a6dcca71fbaf8fb498fd83518Mark Andrews>Mail Routing and the Domain System</I
2eeb74d1cf5355dd98f6d507a10086e16bb08c4bTinderbox User>, January 1986.</P
057cafaa3df7be7a6dcca71fbaf8fb498fd83518Mark AndrewsCLASS="BIBLIOENTRYBLOCK"
057cafaa3df7be7a6dcca71fbaf8fb498fd83518Mark AndrewsSTYLE="margin-left=0.5in"
057cafaa3df7be7a6dcca71fbaf8fb498fd83518Mark AndrewsCLASS="biblioentry"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserNAME="AEN4902"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein>[RFC1034] <SPAN
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserCLASS="AUTHOR"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>Domain Names — Concepts and Facilities</I
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>, November 1987.</P
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserCLASS="BIBLIOENTRYBLOCK"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserSTYLE="margin-left=0.5in"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserCLASS="biblioentry"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox UserNAME="AEN4909"
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User>[RFC1035] <SPAN
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob AusteinCLASS="AUTHOR"
60e5e10f8d2e2b0c41e8abad38cacd867caa6ab2Rob Austein>P. V. Mockapetris</SPAN
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HREF="Bv9ARM.html"