Hi all: I have performed an Operations Directorate review of draft-ietf-v6ops-6to4-to-historic-11 "Experience with the "Connection of IPv6 Domains via IPv4 Clouds (6to4)" IPv6 transition mechanism defined in RFC 3056 has shown that when used in its anycast mode, the mechanism is unsuitable for widespread deployment and use in the Internet. This document therefore requests that RFC 3068, "An Anycast Prefix for 6to4 Relay Routers", be made obsolete and moved to historic status. It also obsoletes RFC 6732 "6to4 Provider Managed Tunnels". 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 is a short draft that does exactly what its abstract (above) says. On the way it explains briefly what the 6to4 deployment problems are, and make it clear that although 3068 should become Historical and 6372 Obsolete, that really means "don't do this in new deployments," and if you have it deployed, "consider whether it's really still needed." Overall, a good document, ready for publication. Cheers, Nevil Co-chair, IPFIX and EMAN WGs -- --------------------------------------------------------------------- Nevil Brownlee Computer Science Department Phone: +64 9 373 7599 x88941 The University of Auckland FAX: +64 9 373 7453 Private Bag 92019, Auckland 1142, New Zealand