Posted 24 October 2009 - 11:15 PM
You'd need to configure the modem to what is normally called bridge mode. This is where it is just a modem, it doesn't make the connection to the net. You can skip this step if you connect to the net with a "dial up" type connection on your PC. Then you'd buy a router, set it up with a PPPoE connection to make the connection through the modem to the net. Then plug the other 3 PCs into the router, one of them would have to be connected to make the changes.
I am not going to do what you should have been doing already, google the info. I have given you the basic info, do your own research.
Hope this helps
Associate in Applied Science - Network Systems Management - Trident Technical College