IPv6 reverse lookup - lame delegation?
Paul Vixie
paul at vix.com
Wed Feb 11 22:11:57 UTC 2004
[itojun]
> i understand some implementation (BIND 9.3?) does this,
i think it's all bind9, but certainly all bind 9.2 and later.
> but is the behavior documented somewhere in the set of RFCs?
yes. marka just quoted all of that.
> for instance, does djbdns do it? does MS DNS server do it?
>
> i'm very skeptical about the possibility (or reality) of DNAME-based
> transition.
as a practical matter, it is impossible to ensure that all name servers
and resolvers understand DNAME. but it is very possible to ensure that
a given zone, such as "8.f.4.0.1.0.0.2.ip6.arpa" in ISC's case, is only
served by authority servers who understand DNAME and do CNAME synthesis.
therefore it is very practical to consider a DNAME-based transition.
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