Tony Finch wrote: > > Murray S. Kucherawy <msk@xxxxxxxxxxxxx> wrote: > > > > I looked at least at the titles of all the documents that update 1035, > > and none of them appear to be related to the above. So where should we > > be looking? > > The only thing I have found that implies NOTIMP doesn't apply to queries > for unknown RR types is in RFC 4074, "Common Misbehavior Against DNS > Queries for IPv6 Addresses": Thanks for mentioning rfc 4074. The stuff in that document matches the thoroughly broken behaviour of the IPv6 DNS resolver client of Windows 2003 that I had encountered just recently. IMO, rfc4074 exhibits a significant amount of cluelessness about DNS, the "Full Standard" document maturity level, and the realities of backwards compatibilities for an incredibly huge installed base. The answer to the question "what can I infer from a failed AAAA lookup" must be deduced from STD 13 **ALONE**, and it amounts to "very close to nothing at all". Now this puts the slow adoption of IPv6 into perspective if it takes the IPv6 crowds >10 years to figure that one out, -Martin _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf