Well, I guess you were right to ask then. I mean, if you've never heard of port forwarding, how can you find out what it is? If with the provided documentation you still can't get the hang of it or have another problem you can't fix by just searching for it, please ask. I didn't want to discourage asking, just encourage self-discovery of information
You might find that that way information comes more easily or can be used to fix something others couldn't. Good luck either way.