I have setup PPTP on a Windows XP Pro box. I can VPN to the box just fine when the PPTP box is directly connected to my cable modem. When I connect the linksys router (WRTP54G firmware 1.00.20), I can not connect to the server. I have the static IP setup and the correct public IP address, but can not figure out what ports need to be forwarded. If someone can please help me set this up on this router I would really appreciate it.