[plug] NAT port forward problem

[Adrian Chadd]

On Tue, Sep 18, 2007, Matthew Whitely wrote:
> >So you are doing port forwarding on the same LAN?
> 
> I always seem to be able to write a lot without being terribly clear, but
> yes that is exactly what I am attempting to do.

Its a multi-step process:

* tag the packets in iptables;
* setup policy routing in iproute2 to select a different routing table based on
  the marking you did in step 1;
* configure your mail server to intercept the packets coming to it on port 25

How its done for web traffic:

http://wiki.squid-cache.org/ConfigExamples/LinuxPolicyRouteWebTraffic

Its pretty horrible. :)



Adrian


> 
> >Does this help: ?
> 
> >http://www.netfilter.org/documentation/HOWTO/NAT-HOWTO-10.html
> 
> Looks like something I might have to look over, thank you. 
> 
> Just a few too many changes from what I'm used to in this release I think
> (my fault for skipping a few in-between), but I'll get there in the end.
> 
> _______________________________________________
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> 
> _______________________________________________
> PLUG discussion list: plug at plug.org.au
> http://www.plug.org.au/mailman/listinfo/plug
> Committee e-mail: committee at plug.linux.org.au

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