> > 1. Ensure you have two nic cards.
> > 2. Read up on iptables/ipchains
> > 3. Make sure one cable (cat5) goes from one  nic to the cable modem;
> >    the other nic should be plugged into the switch.
> > 4. Fire up iptables//ipchains and enjoy :-)

If you don't want to learn all of this firewall/NAT/DHCP stuff, use a=20
ready-made firewall distro.  I recommend:

smoothwall
ipcop
clarkconnect

All of these are easy to use and setup.  I have smoothwall as my DSL fire=
wall=20
running in a 100mhz 486 and keeps up just fine.  I am experimenting with=20
clarkconnect now on a local box because it can do more things link a prin=
t=20
server, web server, web proxy and stuff.

Alan