Re: provisioning software, was DNS RRTYPEs, the difficulty with

In message 
<201203081845(_dot_)q28IjGF0006949(_at_)fs4113(_dot_)wdf(_dot_)sap(_dot_)corp>, 
Martin Rex writes
:
> Tony Finch wrote:
> > Murray S. Kucherawy <msk(_at_)cloudmark(_dot_)com> 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.
So not answering a query because the type is 28 matches RFC 1034
behaviour?  DNS is a query/response protocol.

So returning NXDOMAIN because the query type is 28 when you have
type 1 in the database matches RFC 1034 behaviour?

Returning A record content in software written *after* type code
28 was defined matched RFC 103[45] behaviour?  The same servers
shove A rdata into TXT rdata.  Everything is a A record.


> 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
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka(_at_)isc(_dot_)org
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