I am hooked up to the net using a router and i have a second nic/ethernet card on my computer. My xbox is in the same room and i dont want to have to bring another ethernet cable from 2 floors down. How do i set up my connections to have the inthernet throught the router and then from my computer to my xbox. Ps..my comp is set on DHCP, there is already 2 other computers on the router.