So I have the Netgear Broadband ASDL2+Modem with the ethernet cord connected to a Netgear R6250 Wi-Fi Router. The Broadband Modem does not support port forwarding but the Wi-Fi router does. I'd like to make a game server for a game called Garry's Mod (if anyone has heard of it). When I set the forwarding up on the Wi-Fi router, it doesn't seem to go through. Is there anyway that I can make a game server using my Wi-Fi router port forwarding through the modem? I know how to log in to each one and check my ip addresses.