I am trying to set up a multi site VPN using Cisco 857W Routers for DSL connectivity and a PIX-501 at each site. The client will also need Microsoft VPN client access to the PIX at the main site. I am having all sorts of trouble and I think it is due to the 857W stopping the PPTP traffic. Can someone give me some pointers on basically allowing all traffic through the 857W to the PIX. Do I need to create any port forwarding on the 857W to allow traffic through to the PIX? Any help greatly appreciated.