Been trying this with a friend before I gave up. Maybe others could figure it out (unless its disabled somehow in the game!!):
I set-up a VPN server on my LAN at home and my friend connected to my network from his house fine. He was assigned a local IP address and I could ping and browse files on his machine!!
We then though of simply opening Empire at War and trying the LAN option as theoretically he is on the same network now.... BUT we couldnt see each other in the LAN lobby
Anyone else experimented with VPNs to try and get a LAN game working? Or is this not possible? I would LOVE it if this worked as I've only ever managed to get a few games working through the Gamespy method.
Over to you guys....