Representing Internet Protocol version 6 (IPv6) Addresses in the Domain Name System (DNS) (RFC3363)
Original Publication Date: 2002-Aug-01
Included in the Prior Art Database: 2002-Aug-21
Internet Society Requests For Comment (RFCs)
R. Bush: AUTHOR [+5]
This document clarifies and updates the standards status of RFCs that define direct and reverse map of IPv6 addresses in DNS. This document moves the A6 and Bit label specifications to experimental status.
Network Working Group R. Bush
Request for Comments: 3363 A. Durand
Updates: 2673, 2874 B. Fink
Category: Informational O. Gudmundsson
Representing Internet Protocol version 6 (IPv6)
Addresses in the Domain Name System (DNS)
Status of this Memo
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
Copyright (C) The Internet Society (2002). All Rights Reserved.
This document clarifies and updates the standards status of RFCs that
define direct and reverse map of IPv6 addresses in DNS. This
document moves the A6 and Bit label specifications to experimental
The IETF had begun the process of standardizing two different address
formats for IPv6 addresses AAAA [RFC1886] and A6 [RFC2874] and both
are at proposed standard. This had led to confusion and conflicts on
which one to deploy. It is important for deployment that any
confusion in this area be cleared up, as there is a feeling in the
community that having more than one choice will lead to delays in the
deployment of IPv6. The goal of this document is to clarify the
This document also discusses issues relating to the usage of Binary
Labels [RFC 2673] to support the reverse mapping of IPv6 addresses.
This document is based on extensive technical discussion on various
relevant working groups mailing lists and a joint DNSEXT and NGTRANS
meeting at the 51st IETF in August 2001. This document attempts to
capture the sense of the discussions and reflect them in this
document to represent the consensus of the community.
Bush, et. al. Informational [Page 1]
RFC 3363 Representation of IPv6 Addresses in DNS August 2002
The main arguments and the issues are covered in a separate document
[RFC3364] that reflects the current understanding of the issues.
This document summarizes the outcome of these discussions.
The issue of the root of reverse IPv6 address map is outside the
scope of this do...