Query source port 53
Barry Margolin
barry.margolin at level3.com
Thu Oct 16 21:11:22 UTC 2003
In article <bmmvb3$8ku$1 at sf1.isc.org>,
Nico Kadel-Garcia <nkadel at comcast.net> wrote:
>But the typical "port 53" is on the DNS server from which the zone
>transfers are pulled, right? It's the client pulling the zone that gets
>the response back on the ephemereal port, which is the remote port
>relative to that DNS server. The source port on the server itself is
>still 53. That's what I thought you were contradicting, and perhaps
>misunderstood what you meant.
The "query-source" option that we're discussing (and the related
"transfer-source" option) controls the local-address and local-port used on
the server that's doing the pulling, not the server from which the zones
are pulled.
--
Barry Margolin, barry.margolin at level3.com
Level(3), Woburn, MA
*** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
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