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Date: Mon, 10 Dec 2007 00:34:34 +0100
From: Erik Norgaard <norgaard@locolomo.org>
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To: Michael Smith <mksmith@adhost.com>
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Cc: questions@freebsd.org
Subject: Re: Problem with NAT/RDR in PF
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Michael Smith wrote:
> Hello All:
> 
> I am trying to configure a round-robin group of Name Servers that  
> respond on to and from a single address.
> 
> I want the following to occur:
> 
> 1) DNS query from 10.211.128.1 to 10.212.1.1 is redirected to a pool  
> of name servers
> 2) One of the name servers responds to the query
> 3) The response shows a source address of 10.212.1.1, not the actual  
> name server

I know this does not answer your question, but, what's the point? DNS 
isn't exactly the kind of task that knocks over a server. If you want 
redundancy, then the correct way to do it is to add NS entries to your 
zone files.

I simply let my register transfer the zone file daily, works fine. If 
you need to update the zone file regularly just reduce the max age of 
the zone.

Cheers, Erik

-- 
Erik Nørgaard
Ph: +34.666334818                           http://www.locolomo.org