Mainframeguy is right. You will need a wireless router to use the internet with both machines. Without it all you can do is network between the 2 machines without internet access. It usually goes...cable modem, router, then machines w/NICS. I recommend Linksys, either the BEFW11S4 or the WRT54G, the first is 802.11b/11mbps and the second is 802.11g/54mbps.