It only is possible if you have administrative access to both ends of the tunnel. You only can
filter incoming traffic before it is entering the tunnel. At the end that receives the traffic you
can't filter it anymore.

LAN1-------m0n01-------<ipsec>-------m0n02----LAN2

For example you can filter at m0n01 at LAN1 interface incoming traffic to destination LAN2.

Holger

> -----Original Message-----
> From: Henry F. Camacho Jr [mailto:hfc at ciorent dot com]
> Sent: Tuesday, February 07, 2006 7:01 AM
> To: m0n0wall at lists dot m0n0 dot ch
> Subject: [m0n0wall] IPSEC Firewall Rules
> 
> 
> Is there any way to apply firewall rules to an IPSEC tunnel.  
> I have a 
> number of tunnels that I have installed, however I want to limit the 
> traffic that flows over the tunnels.  I am using 1.21 
> generic-pc-cdrom.
> 
> Thanks
> HFC
> 
> 

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