On Thu, Apr 23, 2009 at 07:10:13AM -0400,
 Scott Rose <sco...@nist.gov> wrote 
 a message of 65 lines which said:

> Those are the DNS protocol mechanisms in place.  There is also lower
> level security technologies such as IPsec that could be used between
> stub clients and recursive servers that don't rely on DNSSEC at all.

TSIG, IPsec and friends have all the same issue: they check that the
response does come from the intended resolver, not that the response
is authentic. At a time where any hotel provides Internet access with
a lying resolver, this is probably not sufficient.

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