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From: John Madden <jmadden@ivytech.edu>
To: gtaylor+reply@riverviewtech.net
Cc: Mail List - Netfilter <netfilter@vger.kernel.org>
Subject: Re: "DNAT" w/o changing source address?
Date: Thu, 04 Oct 2007 10:19:42 -0400	[thread overview]
Message-ID: <1191507582.13379.45.camel@localhost.localdomain> (raw)
In-Reply-To: <4704F430.4070907@riverviewtech.net>

> That is very odd.  Do you have other rules in place that could be 
> interfering with what you are doing?

I have a dozen or so other rules that do the same thing for different
IP's (this is a load balancer).  

> Normally with a server behind a NAT all I need to do is DNAT the traffic 
> and allow the returning traffic to pass back out through the same NATing 
> system and allow it's outbound MASQUERADEing / SNAT to hide the internal 
> source IP address.

Well I thought that's what I was doing with that SNAT rule. =)

> If you do not have this type of scenario but rather both the redirecting 
> IP and the real mail server's IP are both globally routable, then you 
> may need to do something else.  Is this possibly the case?

Yeah, both machines have globally routable IP's.

John




-- 
John Madden
Sr. UNIX Systems Engineer
Ivy Tech Community College of Indiana
jmadden@ivytech.edu


  reply	other threads:[~2007-10-04 14:19 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-03 15:21 "DNAT" w/o changing source address? John Madden
2007-10-03 23:35 ` Grant Taylor
2007-10-03 23:50   ` Pascal Hambourg
2007-10-04  1:17     ` Grant Taylor
2007-10-04 13:14     ` John Madden
2007-10-04 13:14   ` John Madden
2007-10-04 14:09     ` Grant Taylor
2007-10-04 14:19       ` John Madden [this message]
2007-10-04 15:13         ` Grant Taylor
2007-10-04 14:17     ` Pascal Hambourg
2007-10-04 14:22       ` John Madden
2007-10-04 14:59         ` Pascal Hambourg
2007-10-04 15:13           ` John Madden
2007-10-04 15:29             ` Grant Taylor
2007-10-04 19:33               ` Grant Taylor
2007-10-04 16:01             ` Pascal Hambourg
2007-10-04 15:23           ` Grant Taylor
2007-10-04 15:52             ` Pascal Hambourg
2007-10-04 19:12               ` Grant Taylor
2007-10-04 19:25                 ` John Madden

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