2 xbox on 1 router bridging help?!?!

[xxzodiacxx]

Ok.. i read the tutorial on how to bridge and i have it all set up correctly... and my friend comes over and brings his xbox and connects it to my router along with my xbox... soo there is 2 xboxs and my computer all connected to this router .. now i have my xbox bridged using cain and i have his xboxs ip in zone alarm as trusted but yet i cant force him host and i think its because we are connect through the same router .. is there ANY way to do this .. ive tried having both connections bridged with cain thinking that i can force host to his xbox and because his xbox is also bridged i can standby or w/e from my computer

So my question is... is there ANY way to have 2 xboxs brigded to the same router / computer w/e and force one xbox to be host and standby from the computer... or would i have to buy a whole new router and hook it up to the 2nd modem in my house and run the 2nd xbox off of it and have that one brigded to a 2nd computer and force it host and standby from that...

or if there is any way to force host to yourself id like to know please..

Please Help!!!

[Twis7eD]

Halo 3 - How to Bridge An Xbox on Your Connection Host