Configuring a VPN on Win2k3

I have a Windows 2003 server with two NIC cards, one (NIC#1) is connected to my local network with its own ISP (ISP#1) and the other card (NIC#2) is connected directly to my second ISP (ISP#2); the ISP#2 supplies internet exclusively for my server.

I want to add the Remote Access Role (VPN) to this server, but if i try to add this role to my NIC#2, i lose the internet connection in my server... if i try to add this role to my NIC#1, i lose the internet connection in all my network and the connection to my server (from all the PCs) also... as if i had disconnected the network cable from the server.

How can i add this role to my server, without compromising any of my internet connections and/or LAN connections?

Thank YouStart Free Trial