Yep, this is called IP Masquerading, here's a couple of howtos:
http://www.linuxdoc.org/HOWTO/Masquerading-Simple-HOWTO/index.html
http://www.linuxdoc.org/HOWTO/mini/Home-Network-mini-HOWTO.html
http://www.linuxdoc.org/HOWTO/IP-Masquerade-HOWTO.html
These cover the ipchains masquerading which is probably what you want to
stick to for now.
At 01:25 AM 9/19/2001 -0700, you wrote:
>Will I be able to 'share' the Modem across the network (assuming I can
>get the ether0 to work)?
>
>Thanks
Sam Peterson
Hart Interdisciplinary Programs
2201 Hart Hall
University of California, Davis
One Shields Avenue
Davis, California 95616
(530) 752-9332