RFC 3596 (rfc3596) - Page 1 of 8


DNS Extensions to Support IP Version 6



Alternative Format: Original Text Document



Network Working Group                                         S. Thomson
Request for Comments: 3596                                         Cisco
Obsoletes: 3152, 1886                                         C. Huitema
Category: Standards Track                                      Microsoft
                                                              V. Ksinant
                                                                   6WIND
                                                              M. Souissi
                                                                   AFNIC
                                                            October 2003


                 DNS Extensions to Support IP Version 6

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2003).  All Rights Reserved.

Abstract

   This document defines the changes that need to be made to the Domain
   Name System (DNS) to support hosts running IP version 6 (IPv6).  The
   changes include a resource record type to store an IPv6 address, a
   domain to support lookups based on an IPv6 address, and updated
   definitions of existing query types that return Internet addresses as
   part of additional section processing.  The extensions are designed
   to be compatible with existing applications and, in particular, DNS
   implementations themselves.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2
   2.  New resource record definition and domain. . . . . . . . . . .  2
       2.1.  AAAA record type . . . . . . . . . . . . . . . . . . . .  3
       2.2.  AAAA data format . . . . . . . . . . . . . . . . . . . .  3
       2.3.  AAAA query . . . . . . . . . . . . . . . . . . . . . . .  3
       2.4.  Textual format of AAAA records . . . . . . . . . . . . .  3
       2.5.  IP6.ARPA domain. . . . . . . . . . . . . . . . . . . . .  3
   3.  Modifications to existing query types. . . . . . . . . . . . .  4
   4.  Security Considerations. . . . . . . . . . . . . . . . . . . .  4
   5.  IANA Considerations. . . . . . . . . . . . . . . . . . . . . .  4



Thomson, et al.             Standards Track