Ports

[Guest]

I have 2 networks each one in a different building. I'm planning to use a demand-dial on RRAS to connect them. Which port(s) on my firewall do I have to open on both sides in order to esbilish the connection ?

Thanks,

 

[Steven L Umbach]

It depends on if you are using l2tp or pptp. L2tp will require computer certificates
or possibly preshared keys, and will not work over NAT if being used. Pptp will
require port 1723 tcp and protocol 47 for GRE or sometimes referred to as pptp
passthrough. L2tp requires port 1701 udp, port 500 udp, and possibly protocol 50 for
ESP. The link below goes into more detail. --- Steve

http://www.microsoft.com/resources/...3/enterprise/proddocs/en-us/sag_vpn_und13.asp

I have 2 networks each one in a different building. I'm planning to use a

demand-dial on RRAS to connect them. Which port(s) on my firewall do I have to open
on both sides in order to esbilish the connection ?