forums.ps2dev.org

Hi!
If i connect the PC and a PS2, can i play LAN games vs. PC? Like PC version UnrealTournament with PS2 version UT? Or other games!

It depends of the game. But I have never eard of a compatibility between a PS2 game and PC game for any game.
UT PS2 for exemple doesn't have an internet multiplayer mode (only iLink), does it ?

UT came out for PS2 during US launch, loooong before the network adapter was available. So no, it has no network support. I too have not heard of any PS2 games which work with PC versions.