I tried that also. Same result.
Here is the solution to make my test setup work: I had to uncheck the block
private networks flag on the WAN Interface page of the remote monowall.
----- Original Message -----
From: "Gurmeet Bedi" <GregBedi at valeti dot com>
To: "m0n0wall list" <m0n0wall at lists dot m0n0 dot ch>
Sent: Monday, February 27, 2006 11:32 AM
Subject: Re: [m0n0wall] site to site IPsec VPN, negotiation failed due
> not sure if your setup will work, however, your local and remote subnet's
> should end with .0, since you are using the 24bit mask.
> 192.168.50.0 /24
> 192.168.10.0 /24