I used to have a an IPSec tunnel with a BEFVP41, and for a while, I had
exactly the same symptoms. 

It was a while back, but I believe the problem turned out to be that the
Mono and the BEFVP41 were both using the 192.168.1.x subnet.  (The
subnets on both ends of a  tunnel cannot overlap.)   After I moved the
Mono to 192.168.3.x, things worked much better.  

Eventually, I replaced the BEFVP41 with another Mono, because the Mono
is better supported, more stable, and has an easier-to-use user
interface.

Be well...

Lynn



On Thu, 2006-11-09 at 13:28 -0600, Alan L wrote:

> I am trying to establish an IPSec tunnel between my m0n0wall and a Linksys
> BEFVP41 with the latest firmware.
> 
> I have configured m0n0wall and the Linksys with the following:
> 
>  
> 
> Phase 1
> Negotiation mode: Aggressive
> Encryption algorithm: 3DES
> Hash algorithm: MD5
> DH key group: 2 (1024bit)
> Lifetime: 3600
> 
> Phase 2
> Protocol: ESP
> Encryption algorithm: 3DES 
> Hash algorithm: MD5
> PFS key group: 2 (1024bit)
> Lifetime: 3600
> 
>  
> 
> I already have a couple of tunnels established between other m0n0wall
> routers that are active without any problems.
> 
> The Linksys says it is connected, and the connections show up in
> Diagnostics->IPsec->SAD. I currently have an 'any any' rule setup for ESP in
> the firewall rules of m0n0wall.
> 
> The catch to this is. I cannot pass any traffic through the tunnel. Anyone
> have suggestions as to why this isn't working, am I missing something?
> 
>  
> 
> Alan
>