Belkin n600 router to modem with only one port?

[Sapphire88]

My roommate and I have High speed cable internet and the modem is set up in his room. I bought a n600 belkin router and a usb wireless adapter so my computer in my room will get internet. Only problem is there is only one ethernet port on the modem that the internet provider gave us and of course that is taken up by his computer. How do I hook up the router to the modem and get all this to work so I can get on the internet as soon as possible?

 

[Emerald]

connect the Belkin to the modem and plug the computer into the Belkin.

then connect your computer wirelessly to the Belkin