Individual Submission G. Huston Internet-Draft APNIC Expires: May 16, 2005 November 15, 2004 Deprecation of "ip6.int" draft-huston-ip6-int-00.txt Status of this Memo This document is an Internet-Draft and is subject to all provisions of section 3 of RFC 3667. By submitting this Internet-Draft, each author represents that any applicable patent or other IPR claims of which he or she is aware have been or will be disclosed, and any of which he or she become aware will be disclosed, in accordance with RFC 3668. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on May 16, 2005. Copyright Notice Copyright (C) The Internet Society (2004). Abstract This document advises of the deprecation of the use of "ip6.int" for Standards Conformant IPv6 implementations. Draft Notes [This section not for RFC publication] This memo has been prepared as part of the activities of an ad hoc Huston Expires May 16, 2005 [Page 1] Internet-Draft ip6.int November 2004 advisory committee to advise the IAB on a number of matters relating to IPv6. It is proposed that the note be published as an Internet Standards action for IPv6 as a BCP. Comments on this draft should be sent to either the author, or to the document's editing group. This group can be reached at the mail address "draft-huston-ip6-int@potaroo.net". This advice does not directly address legacy issues concerning continued support for "ip6.int", beyond a request to the RIRs to prepare a schedule relating to their phase-out of ip6.int support as part of registry services. In considering the orderly phase out of ip6.int it is noted that there appears to be, at present, some level of continued use of the "ip6.int" domain by earlier IPv6 implementations. Some exploratory activity has been noted, proposing the use of DNAME records in "ip6.int" using a redirection pointer to the relevant delegation points in the "ip6.arpa" domain. There are some associated issues with the use of base relative names in reverse domains to allow the DNAME to work, and there may also be a need for some investigatory activity relating to the soundness of the use of DNAME redirection in this context. However, this activity falls more into an operational task regarding legacy management, and no particular advice regarding IAB actions is offered here. 1. IPv6 Standards Action In August 2001 the IETF published RFC 3152 [1], which advised that the use of "ip6.int" as the domain for reverse-mapping of IPv6 addresses to DNS names was to be deprecated. The document noted that the use of "ip6.int" would be phased out in an orderly fashion. With the publication of this memo, the IETF advises the community that the DNS domain "ip6.int" should no longer be used to perform reverse mapping of IPv6 addresses to domain names, and that the domain "ip6.arpa" should be used henceforth, in accordance with the IANA Considerations described in RFC 3596 [2]. The domain "ip6.int" is deprecated, and its use as part of Internet Standards conformance of IPv6 implementations is discontinued. The Regional Internet Registries (RIRs) are advised that maintenance of delegation of entries in "ip6.int" is no longer required as part of infrastructure services in support of Internet Standards conformant IPv6 implementations. The RIRs are requested to work with their communities to adopt a schedule regarding cessation of support of registration services for the "ip6.int" domain. Huston Expires May 16, 2005 [Page 2] Internet-Draft ip6.int November 2004 2. IANA Considerations IANA is advised that the "ip6.int" domain for reverse mapping of IPv6 addresses to domain names is no longer part of Internet Standards Conformant support of IPv6. 3. Security Considerations While DNS spoofing of address to name mapping has been exploited in IPv4, removal of the "ip6.int" zone creates no new threats to the security of the internet. 4. Acknowledgements The document was prepared with the assistance of Kurt Lindqvist, Thomas Narten, Paul Wilson, David Kessens, Bob Hinden and Brian Haberman. 5 Normative References [1] Bush, R., "Delegation of IP6.ARPA", BCP 49, RFC 3152, August 2001. [2] Thomson, S., Huitema, C., Ksinant, V. and M. Souissi, "DNS Extensions to Support IP Version 6", RFC 3596, October 2003. Author's Address Geoff Huston APNIC EMail: gih@apnic.net Huston Expires May 16, 2005 [Page 3] Internet-Draft ip6.int November 2004 Intellectual Property Statement The IETF takes no position regarding the validity or scope of any Intellectual Property Rights or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; nor does it represent that it has made any independent effort to identify any such rights. Information on the procedures with respect to rights in RFC documents can be found in BCP 78 and BCP 79. 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Disclaimer of Validity This document and the information contained herein are provided on an "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Copyright Statement Copyright (C) The Internet Society (2004). This document is subject to the rights, licenses and restrictions contained in BCP 78, and except as set forth therein, the authors retain all their rights. Acknowledgment Funding for the RFC Editor function is currently provided by the Internet Society. Huston Expires May 16, 2005 [Page 4]