Re: trouble with .gov dns?

[Mark Andrews <marka () isc org>]

In message <878vupuiu0.fsf () mid deneb enyo de>, Florian Weimer writes:
> * William Herrin:
>
> > Anyone else having trouble with .gov DNS failing with edns-udp-size
> > set to 512?
>
> 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.

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