Yeah, found it a while ago. My ISP screwed up port fowarding, so I was forced to use this. I´m glad to say that it works really well. Anyway, thanks for sharing it with others.

EDIT: Forgot to mention that if you restart your router, the settings will be deleted and you need to re-enter the info. And also if you have more than one user connected to the router you need to enter the internal IP.