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 From:  Chris Buechler <cbuechler at gmail dot com>
 To:  Carlo Landmeter <clandmeter at gmail dot com>
 Cc:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] I don't want to go back using Cisco....
 Date:  Tue, 17 May 2005 20:27:29 -0400
On 5/17/05, Carlo Landmeter <clandmeter at gmail dot com> wrote:
> I'm using m0n0wall version 1.2b3 on a wrap board. From our provider we
> receive a subnet of 16 ip's which we can use. The m0n0wall is acting as
> router and firewall for this subnet. I am using the 3 interfaces as folowed.
> WAN 81.*.*.*/30
> LAN 10.*.*.*/24
> DMZ 81.*.*.*/28
> I have disabled NAT by enabling advanced outbound NAT for the DMZ and added
> a mapping to enable NAT for the lan interface.
> One of the devices on the DMZ interface is a Cisco trying to run a GRE VPN
> tunnel but it seems as if the m0n0wall is blocking the tunnel.
> When i look into the firewall logs it doesnt display anything blocked.

Then it's not blocking anything unless you put in a rule that doesn't
log that blocks.  Can the router get out to the internet?  Try pinging
something on the internet and see if you get an answer.