[pptp-server] Connect linux PPTP server with NT VPN server?

[Florian Eggert]

Hi!
I need some help with setting up the pptp server the way I need it.
This is my situation.

Windows NT Box -- LAN -- Linux Box -- Internet -- VPN Server (running NT).

I need to connect to the NT VPN server with my own NT box. I can access the
internet only via my linux box. The linux machine is also running a
firewall. I can ping the ip address of the NT VPN server, but connect to it.
I think this is due to the lack of pptp ipsec masquerading support of my
linux (2.2.16).
Now the big question: Would it be a solution for me to set up the pptp
server on my linux box? Can I connect the linux pptp server with the VPN NT
server and then access this connection from my own NT machine?
Any help is appreciated, since a solution is very important for me.

Thanks,
Florian