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 From:  Chris Buechler <cbuechler at gmail dot com>
 To:  Michael Lester <mlester at fastrans dot com>
 Cc:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] Yet another question about multiple IPs on WAN
 Date:  Thu, 30 Jun 2005 15:35:14 -0400
On 6/30/05, Michael Lester <mlester at fastrans dot com> wrote:
> 
> Our network consists of xx.xx.152.0 - xx.xx.155.255.  My upstream
> provider has a Cisco router at xx.xx.152.1.  This will be my m0n0 box's
> default gateway.  The old network setup used two linux firewalls (one
> for internal, one for DMZ).  The upstream Cisco splits incoming traffic
> between the two firewalls.  It routes some traffic to xx.xx.152.2 and
> some to xx.xx.152.3.  If I set my m0n0 box's WAN ip to be xx.xx.152.2, I
> lose all the traffic routed to xx.xx.152.3.
> 

Change the upstream router.  Proxy ARP on m0n0wall might suffice, but
there's no reason to leave the router in a state that is misconfigured
for your new topology.

-Chris