[pptp-server] WinNT client behind Linux firewall

[glenn.robinson at btinternet.com]

I can connect to my pptp server if I'm connected directly 
to my ISP from my WinNT PC. When I'm at home the 
WinNT pc is sitting behind a Linux router/firewall which 
connects to the net.

In this scenario I cannot connect to the Office pptp 
server. I assume this is something to do with NAT as I 
can't get a connection even if I clear the firewall rules.

Any ideas/suggestions?

Thanks

Glenn