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From: /dev/rob0 <rob0@gmx.co.uk>
To: netfilter@lists.netfilter.org
Subject: Re: Source NAT
Date: Wed, 31 Aug 2005 06:37:33 -0500	[thread overview]
Message-ID: <200508310637.33322.rob0@gmx.co.uk> (raw)
In-Reply-To: <58867.212.100.225.55.1125487119.squirrel@webmail.*>

On Wednesday 2005-August-31 06:18, Jimmy wrote:
> I currently have a situation that I am hoping iptables can resolve.
> The issue is that I need to NAT the source address based on the
> destination address. Is that possible with IPTables ?

Trivial.

> if dst = 1.1.1.1 src = 10.1.1.1

iptables -vt nat -A POSTROUTING -d 1.1.1.1 -j SNAT -to 10.1.1.1

> Can anyone give me any advice on completing that?

"man iptables"

Order matters. If you have a catchall SNAT rule before the specific 
destination ones, the catchall is the one used.

NAT != routing. If your SNAT'ed IP addresses need to go out different 
interfaces, this won't work. See the LARTC HOWTO.
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  parent reply	other threads:[~2005-08-31 11:37 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-31 11:18 Source NAT Jimmy
2005-08-31 11:31 ` Stéphane BENOLIEL
2005-08-31 11:33   ` Stéphane BENOLIEL
2005-08-31 11:37 ` /dev/rob0 [this message]
2005-09-03 19:28   ` ISC Jorge Ceron Galvan
2005-09-03 20:29     ` /dev/rob0
  -- strict thread matches above, loose matches on Subject: below --
2004-07-06 18:49 Michael Forrest

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