IPV6 renumbering painless?

Thu Nov 11 22:27:52 UTC 2004

> > Correct me if I'm wrong, but doesn't IPv6 do away
> > with the need to renumber when switching providers?
> > ...
> 
> That is how it has been designed, however there are some practical
> problems with this system:
> 
> - Until very recently DNS software did not support A6 records at
>   all, and "chain" support for A6 records still seems to be a work
>   in progress.

A6 is dead.  If you renumber, all your AAAA's will have to be changed,
and you will have to establish new PTR zones.  It's now just like IPv4
with regard to DNS, except for the RRtype (AAAA vs A).  There is no
IPv6 renumbering support in DNS.  Dead, dead, dead.  For years now.

Several of those responsible for the killing are present on this mailing
list, so perhaps they will explain just why A6 apparently needed killing.
-- 
Paul Vixie