I am obviously not on a Windows because the topic "How To Port Forward On A Mac"
I have pointed out on various occasions; this is not a Mac specific guide. This guide is actually for a specific router which happens to be shipped with quite a few macs.
If you could understand how to read - if you don't have an airport router (google it if you don't know what one looks like), then you have to
port forward/enble UPnP like any person on a Windows machine would.
Which is the method of IP into favourite internet browser.