I have set up a network using the following:
Cable modem
LinkSys BEFSR41 Router/Switch
Cable to each of 2 Win98SE Desktop NICs
One computer is protected by ZoneAlarm and the other by
   Sygate software firewalls which were in place before the network.

My questions:
1. How does the router provide firewall protection and does it have to be
configured to do it?
2. Is NAT software necessary or desirable in such a system?
3. Should I leave the software firewalls in place? Do they still help or do
they ialigfere?

Thanks, Bob Lendrim