From mboxrd@z Thu Jan  1 00:00:00 1970
From: Karl Fischer <karl.fischer@quantum.com>
Subject: Re: problems routing
Date: Mon, 24 Jun 2002 17:46:59 +0200
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To: Tim <tim-lists@cimx.com>
Cc: Netfilter mailing list <netfilter@lists.samba.org>

Tim wrote:
> 
> I have a 192.168.100.0 network with my iptables box sitting at
> 192.168.100.12 and a mailserver at 192.168.100.10 and also with a public ip
> and name.
> 
> I have several users who are both on the road and work in the office
> commonly.
> 
> I want to make a rule for them so that when they request mail.cimx.com it
> redirects to 192.168.100.10.
> 
> I tried to make the following rule:
> iptables -t nat -A PREROUTING -p tcp -d $MAIL_IP -j REDIRECT 192.168.100.10
> but it seems to not work.


You'll have to use DNAT for that:

iptables -t nat -A PREROUTING -p tcp -d $MAIL_IP \
	-j DNAT --to-dest 192.168.100.10

HTH

- Karl