2008 R2 Port Forwarding

Firewall Port Forwarding / Port Redirection can be accomplished in Win2k8 R2 using the netsh command.

Example

netsh interface portproxy add v4tov4 listenport=12345 listenaddress=192.168.1.1 connectport=443 connectaddress=192.168.1.1

This will allow the computer at 192.168.1.1 to answer SSL connections on ports 443 and 12345

Reference

http://www.rickwargo.com/2011/01/08/port-forwarding-port-mapping-on-windows-server-2008-r2/