PLAYSTATION NETWORK…HELP!!

Hello,

I am having trouble gettin my ps2 to connect to the internet. Any tips on what I need to have switched on/off on my router?

Was also wondering if there was a way to check that my ps2 was network comapatible. It was one of the first wave that came out and I have read that not all of them work.

Help!!! I want to play pro evo online!

Thankk you