Subject: Re: Interesting NAT question.
To: None <tech-net@netbsd.org>
From: Christos Zoulas <christos@zoulas.com>
List: tech-net
Date: 09/24/2000 17:41:32
In article <20000921195505.A3766@zembu.com>,
Ari Gordon-Schlosberg <regs@zembu.com> wrote:

I don't think that there is right now, but it should be easy enough
to put in. Another way is to use a different machine as the gateway,
and put more specific routes to all the machines to use that second
gateway that does not NAT.

christos

> Hi, I'm the net admin and Zembu Labs, and we've got an interesting little
> problem that jthorpe thought you guys could solve:
> 
> We have a NetBSD box with five interfaces doing NAT on one of them.  Three
> internal subnets, 192.168.(1|2|3).0/24 are NATing out to the net via this
> box out its 209.128.96.253 interface.  That all works just fine.  
> 
> The problem is this: we want hosts on the 209.128.96.* subnet to be able to
> talk to things on 192.168.* without the return traffic being NATed.
> 
> Is there any way to exclude a specific subnet from being natted?
> 
> -- 
> Ari Gordon-Schlosberg <agordon@zembu.com>