network problem, I don't know the ports.

Hello,

I have followed a tutorial on youtube on how to play on network. Everything is working fine on my local machine, but I want to play it on internet with a friend. But I don’t know witch ports to forward? Are this default ports for unity? Or do I need to do some scripting for programming the ports before I can forward them?

Sorry for my bad English, if you can’t understand me ask and I will try it again.

Thank you for your help

Allready found it, it was in the script.