Question : PPTP port need to open on firewall

My firewall will map a public IP to any internal Window 2003 server. I want to enable the PPTP on Window 2003. Have any idea which port I need to open on the firewall ?

Thanks

Answer : PPTP port need to open on firewall

No problem, it is an item over which there is much confusion. Many reputable sites say port 47 needs to be forwarded, but port 47 is actually a specialized FTP service. Protocols such as GRE/47, cannot be forwarded, using port forwarding.