I have setup a VPN server using the Poptop server. I can connect to it from my client machine and ping the server's ppp0 ip address, and even load webpages from the apache server on the same machine, but I can't get to the internet from the client machine. My server has 3 ethernet cards, eth1-3. Eth1 is the one that the server receives on. Eth3 is the main connection to the internet Based on every how-to I have found, this should be working, but it's not. The ssh, samba, and apache servers on the same machine are working correctly. What am I doing wrong?