S!
I've tried to play SP offline, thank you very much for your guides.
Noww, I'd like to connect two PC via LAN for playing WoW: someone should suggest me the method to follow? Thanks.
192.168.0.2 would be your router's LAN IP and 8080 would be the port you cleared (there is one for the realm and one for the game if you use MaNGOS, so 2 ports in all).