Rémi Denis-Courmont - le (m/j/a) 3/25/09 10:16 AM:
On Wednesday 25 March 2009 18:05:36 james woodyatt wrote:
[moving discussion into V6OPS from 74attendees]
On Mar 25, 2009, at 08:03, Rémi Després wrote:
RFC 3068 (An Anycast Prefix for 6to4 Relay Routers) does more harm
than good. IMHO, it should be deprecated.
I would support that, providing first that 6RD is A) adopted as a
proposed standard, and B) comes to see more widespread deployment than
6to4. I also believe the latter is very likely to happen contingent
on the former, so I would vigorously support taking up 6RD as a
working group activity.
Anycast 6to4 has problems. I guess Nathan Ward will present some of those. 6RD
solves many of the shortcomings of 6to4, _assuming_the_ISP_deploys_it_.
But lest we deprecate the entire scenario of automatic IPv6 setup without ISP
support, I fail to see how 6RD can replace anycast 6to4.
Thanks for your comment.
Using 6to4 between two 6to4 user sites is NOT a problem, and indeed
MUST remain possible.
But using a source 6to4 address to reach a non-6to4 destination IS a
problem, and IMHO MUST be deprecated ASAP.
6to4 to non-6to4 being the only reason for 6to4 relay routers, and for
the 6to4 anycast address to reach them, they are what needs being
deprecated.
I guess RFC 3484 should also be updated to say that a 6to4 address MAY
be used if both source and destination are 6to4, but ONLY in this case.
Regards,
RD
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