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BCP 196
RFC 7526
Title: Deprecating the Anycast Prefix for
6to4 Relay Routers
Author: O. Troan, B. Carpenter, Ed.
Status: Best Current Practice
Stream: IETF
Date: May 2015
Mailbox: ot@cisco.com,
brian.e.carpenter@gmail.com
Pages: 10
Characters: 20894
Obsoletes: RFC 3068, RFC 6732
See Also: BCP 196
I-D Tag: draft-ietf-v6ops-6to4-to-historic-11.txt
URL: https://www.rfc-editor.org/info/rfc7526
DOI: http://dx.doi.org/10.17487/RFC7526
Experience with the 6to4 transition mechanism defined in RFC 3056
("Connection of IPv6 Domains via IPv4 Clouds") has shown that the
mechanism is unsuitable for widespread deployment and use in the
Internet when used in its anycast mode. Therefore, this document
requests that RFC 3068 ("An Anycast Prefix for 6to4 Relay Routers")
and RFC 6732 ("6to4 Provider Managed Tunnels") be made obsolete and
moved to Historic status. It recommends that future products should
not support 6to4 anycast and that existing deployments should be
reviewed. This complements the guidelines in RFC 6343.
This document is a product of the IPv6 Operations Working Group of the IETF.
BCP: 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.
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