trouble with hp.com mx record

[Mark_Andrews at isc.org]

> Are you blocking outbound TCP port 53?  The response is big enough that it
> may be trying to switch to TCP instead of UDP.

	Barry I doubt that this is the problem.  Truncation occurs
	in the additional section so TC should not be set hence no
	TCP fallback is triggered.
 
> Another possibility is that your server is trying to use the EDNS0
> extension for large packets, and the firewall doesn't recognize this.

	This will be it.
 
> -- 
> Barry Margolin, barry.margolin at level3.com
> Level(3), Woburn, MA
> *** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
> Please DON'T copy followups to me -- I'll assume it wasn't posted to the grou
> p.
> 
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at isc.org