I wonder if anyone could help me with this. I am trying to end up with a single pc with a fixed IP on my network only able to access the WAN via a VPN. What would be the be the best way to acheive this. The macine should be able to access other machines on th enetwork but only be able to communicate with the internet if a VPN tunnel is active - it is a linux machine creating a PPTP tunnel (I have this part working).