Got a simple question regarding setting VPN tunnels between two FVS318s Netgear VPN firewall routers.
I will be setting up two FVS318 routers via a VPN tunnel to one another. I have done it numerous times successfully, providing both FVS318s have a public IP address and all (DMZ) ports available to it.
In this case, one of the FVS318s will be behind another NAT 3rd party router (router B) issuing it an internal (192.X.X.X) address.
I just need to know which port(s) must be forwarded on router B in order for the two FVS318's to communicate. I have done this before in the past, and I am sure its 1 TCP port (maybe TCP 1723?). Can anyone confirm?