Originally posted by: gwlam12
i am wondering now why u would need a router instead of just using a hub for everybody
A router (the kind referred to above) is going to hide the number of computers using a technique called NAT (Network Address Translation) or IP Masquerading. This basically makes it look to the outside world that there is only one computer on the cable connection. It figures out which traffic is meant to go to which computer on the inside.
A hub or switch just splits the connection and keeps all the computers visible. You would need an IP address for each computer in order to be able to have the hub or switch without the router. However, a hub or switch that is connected to the router would just expand the size of the router if it is connected right. The connections should be like this:
Internet --- Cable Jack ---- Cable Modem ---- Router --- Switches/hubs --- Your computers