expedia.msn.com does not resolve

[Barry Margolin]

In article <9lencv$16j at pub3.rc.vix.com>,
Kevin Darcy  <kcd at daimlerchrysler.com> wrote:
>
>Cinense, Mark wrote:
>
>> >From inside the firewall expedia.msn.com does not resolve, however from
>> outside the firewall it does.  If you try to resolve ibm.com, or hp.com it
>> works.  I had networking sniff the packets, and could not find anything.
>> Does someone have any ideas why this would happen?
>
>Not sure. It took my nameserver more than 5 seconds to resolve that name. The
>CNAME + 13 Answer A records + 12 NS records + 12 Additional A records of
>course do not fit in a UDP packet and thus require a TCP retransmission.
>Perhaps all of these retransmissions are overloading their nameservers

Since the problem only occurs behind his firewall, maybe his firewall
doesn't allow TCP DNS requests through.

-- 
Barry Margolin, barmar at genuity.net
Genuity, Woburn, MA
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