What does it mean to enable port forwarding on my router and how do you do it?

Answer 1

I'm guessing you want to set up a game server...

Visit PortForward.com They'll give you specific examples and detailed instructions on setting up port forwarding on just about any router for a ton of different applications.

Answer 2

Port forwarding is used to open ports, so you can allow specific traffic through your router that was previously blocked. I would suggest going to www.portforward.com to learn how to open ports. It'll ask you for the model number of your router, and then the program that you are trying to use.