nanog mailing list archives

Re: trouble with .gov dns?


From: Florian Weimer <fw () deneb enyo de>
Date: Tue, 03 May 2011 07:20:55 +0200

* Mark Andrews:

You need an UDP size of at least 1220 for DNSSEC, see RFC 3226,
section 3.  A query that advertises a smaller buffer size is
non-compliant.  BIND will send such queries, but this is a
controversial feature.

This has been noted before, for example:

From: Mark Andrews <marka () isc org>
Subject: [dnsext] Failure to add glue MUST cause TC to be set.
To: dnsext () ietf org
Date: Sun, 20 Feb 2011 08:07:15 +1100
Message-Id: <20110219210716.72943A5602B () drugs dv isc org>

And nameservers that don't set TC when they can't fit glue are
broken RFC 1034.

Only if they produce such answers in response to compliant queries. 8-)


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