Find ports question, please help

[Dio10801]

I'm in college inside a dorm room and I need help trying to get my firewall lifted so I can game online with my PS3. First thing I have to know is how do you find out what ports you need? Second, it asks for a Protocol (TCP, UDP), Outgoing/Incoming, and Service (http, ftp, telnet, etc)? I thing protocol is my IP address but no clue what everything else is. Last, it asks for a outside Ip address, i didn't know the world has one and if so, where? Can somebody please help, thanks.

 

[imported_B_O]

http://www.orpheusinternet.co.uk/support/ps3/index.html
That might help a lil cant help much i dont have PS3. Oh and trying to get passed their firewall culd land you and expulsion and you wont get into another college. Id check the rules before proceding