VPN

I am trying to set up a VPN so that salesmen can connect to our servers via their ISP.

I have configured the server for RAS and added the needed vpn ports. I have configured them to accept incoming calls using tcp/ip protocol only.

I have configured my Unix box to allow pptp traffic through on ports 1723 and 21.

I have configured my Win95 client to dial an ISP and then dial the VPN server. I made sure the client had the latest Dun1.3 and vpnupd.exe. What I am not sure about is how to configure the DUN for the VPN server. What do I need to use as a phone number?

Is there any thing else I need to?

Please help.