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 From:  "Chris Buechler" <cbuechler at gmail dot com>
 Cc:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] Problems with DMZ outgoing connection
 Date:  Wed, 6 Sep 2006 17:36:15 -0400
On 9/6/06, phreaker <mailrelay at phreaker dot net> wrote:
> I have set up a monowall machine with 3 interfaces, WAN,LAN and DMZ as
> per the monowall FAQ. I have one computer connected with a TP crossover
> cable to the monowall's DMZ interface.
> It works to ping and to connect TO the DMZ'ed machine, but from that
> machine I cant get any ping or connection to the outside, I cant even
> ping the DMZ interface!

Because you didn't allow anything on the DMZ to ping in your firewall
rule.  Change TCP to any in your rule on OPT1, and you should be able
to get to everything.  You'll want to lock down that rule much more
once you have things working.