Re: Ip Src rewite.

Linux Advanced Routing and Traffic Control

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Maybe I have missed somthing and you need to do it in POSTROUTING but
how about SNAT.

PS: ip can do stateless nat.

On Tue, 2005-
10-25 at 14:36 +0200, Daniel Frederiksen wrote:
> Hello folks..
> 
> Does any of you know if it is possible to rewrite the ip src in a packet.
> I have a problem involving a DMZ with external IP addresses routed 
> trough a single WAN IP. When the server initiates a connection, it looks 
> like it comes from the WAN ip instead of it's designated External IP 
> routed through the WAN.
> So in short, Is it possible to rewrite the packet in the router, with 
> Iptables, to make it look like it comes from the external IP address 
> instead of the WAN IP of the router/firewall.
> 
> Thank you very much for your time, I appreciate it.
> 
> /Daniel Frederiksen
> 
> 
> NB: Small diagram of the setup.
> 
>    DMZ                     GW/FW           ISP/Internet
> -----------------------------------------------------------------------
>    Server #1  --|
>    e.f.g.h3/26  |
>                 |---- Gateway/Firewall --- ISP  WAN IP: a.b.c.d/30
>    Server #2  --|      a.b.c.d1/30         Ext. IP: e.f.g.h/26
>    e.f.g.h4/26         e.f.g.h1/26
> ----------------------------------------------------------------------
> 
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