Cable modem and Router

[Malcolm J McCallum]

Hi Wamuggers,

I have a Telstra/foxtel cable modem and a Linksys  Etherfast Cable DSL 
Router .  Matt set this up for me and it worked reasonably well,but 
dropped out quite frequently for reasons unknown.  The only way I could 
get back on line was to do a reset on both 'Boxes'. Sometime recently 
Telstra changed something and I could not get online at all :-).   For 
a few days I was driven to using my cell phone T68i. and bluetooth :-(

I am now reliably back on using !Launch plugging directly into the 
cable modem but cannot get to 'share' with the other macs in the Mac 
household.

It would seem I need to get the equivalent of Launch into the router or 
do I put !Launch onto the other macs.

Help!!
Mac