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IETF RFC 4159

Deprecation of 'ip6.int'

Last modified on Wednesday, August 24th, 2005

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Network Working Group                                          G. Huston
Request for Comments: 4159                                         APNIC
BCP: 109                                                     August 2005
Category: Best Current Practice 


                        Deprecation of "ip6.int"

 Status of This Memo

   This document specifies an Internet Best Current Practices for the
   Internet Community, and requests discussion and suggestions for
   improvements.  Distribution of this memo is unlimited.

 Copyright Notice

   Copyright © The Internet Society (2005).

 Abstract

   This document advises of the deprecation of the use of "ip6.int" for
   Standards Conformant IPv6 implementations.

1.  IPv6 Standards Action

   In August 2001 the IETF published [RFC 3152], which advised that the
   use of "ip6.int" as the domain for reverse-mapping of IPv6 addresses
   to DNS names was deprecated.  The document noted that the use of
   "ip6.int" would be phased out in an orderly fashion.

   As of 1 September 2005, 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].  The domain "ip6.int" is deprecated, and its
   use in IPv6 implementations that conform to the IPv6 Internet
   Standards 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 as of 1 September 2005.  The RIRs are
   requested to work with their communities to adopt a schedule
   regarding the cessation of support of registration services for the
   "ip6.int" domain.






Huston                   Best Current Practice               PAGE 1 top


RFC 4159 ip6.int August 2005 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 as of 1 September 2005. 3. Security Considerations While DNS spoofing of address to name mapping has been exploited in IPv4, removal of the "ip6.int" zone from the standard IPv6 specification 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, Brian Haberman, and Bill Manning. 5. Normative References [RFC 3152] Bush, R., "Delegation of IP6.ARPA", BCP 49, RFC 3152, August 2001. [RFC 3596] 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 Best Current Practice PAGE 2 top

RFC 4159 ip6.int August 2005 Full Copyright Statement Copyright © The Internet Society (2005). 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. 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. Intellectual Property 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. Copies of IPR disclosures made to the IETF Secretariat and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF on-line IPR repository at http://www.ietf.org/ipr. The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights that may cover technology that may be required to implement this standard. Please address the information to the IETF at ietf- ipr@ietf.org. Acknowledgement Funding for the RFC Editor function is currently provided by the Internet Society. Huston Best Current Practice PAGE 3 top

Deprecation of 'ip6.int' RFC TOTAL SIZE: 5353 bytes PUBLICATION DATE: Wednesday, August 24th, 2005 LEGAL RIGHTS: The IETF Trust (see BCP 78)


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