From: Victor Duchovni (Victor.DuchovniMorganStanley.com)
Date: Wed Jan 03 2007 - 08:40:51 CST

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On Wed, Jan 03, 2007 at 12:09:32AM -0600, Travis H. wrote:

> #2) Per RFC, a query to IP address A on UDP/53 may be answered by a UDP
> response from a different IP address B. This is valid per the RFC,
> because a name server may be multihomed, and UDP doesn't always
> have the notion of a connection (some implementations have
> quasi-connections which may keep track of peer and received interface,
> but not all).

No. Nameservers must and do respond from the IP address to which the
query was sent.

--
        Viktor.

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