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 From:  "Ron Carter" <wcarterjr at earthlink dot net>
 To:  <m0n0wall at lists dot m0n0 dot ch>, "Jimmy Gelhaar" <jgelhaar at mac dot com>
 Subject:  Re: [m0n0wall] IPSEC tunneling issue
 Date:  Thu, 15 Mar 2007 07:28:53 -0400
I had a similiar issue.  I just changed my internal network.  I had about 8 
machines running and a ton of rules setup, but that was the least painful 
thing to do.
----- Original Message ----- 
From: "Jimmy Gelhaar" <jgelhaar at mac dot com>
To: <m0n0wall at lists dot m0n0 dot ch>
Sent: Wednesday, March 14, 2007 9:59 PM
Subject: [m0n0wall] IPSEC tunneling issue

> I'm having a problem with an ipsec tunnel.
> Here is the situation:
> My internal single IP for the tunnel is:
> My remote endpoint is
> (I'm only tunneling one IP on each network to each other)
> Unfortunately, the remote network I'm connecting to has a lot of VPN
> tunnels and they already have a tunnel to another network with an
> internal scheme of 172.20.1.x.
> Essentially, I need to establish the tunnel from one IP on my
> network, to one IP on the remote network.  Since they already have a
> tunnel with someone else using my internal IP, I need to NAT
> (essentially present it on their network as a different IP) my
> internal IP over the tunnel to their network.
> They have specified the NAT address I need to use, which is:
> Needs to be Nat'ed to
> Anyone have ideas if this is possible with M0n0wall?
> Thanks,
> Jimmy