Hey I am using LEAF to play Halo 3 with my friend. The game shows up in the System Link section and I can see his gamertag but I can't connect. When we try to connect it tells us the other one should host because of our NAT. I don't understand what ports am I supposed to be forwarding. Am I supposed to use the laptop IP address or the Xbox's. Also, if it helps..both of our xboxs have been banned from xbox live and we barely pllay so this would be an awesome alternative. What am I doing wrong because we can both see each others games, it just says the NAT is incompatible and that I should host. Thanks

I have also been banned and fiddled with this program.
You need to forward the ports for the xbox to obtain an open NAT.
Also keep in mind that 360 games have a strict limit of 30ms of ping on system link.
Basically that means you and your friend need to live at least in the same state.
But if he is your neighbor then just forward you ports and your set.

Leaf isnt working for alot of people. Thats why we are using XLINK. Then if you get it up and running you can have more friends and neighbors get on.