I have a network system running on TCP/IP and I would like to connect that to a Router/Firewall to connect to a High speed system. I guess what I am getting at is can I run 5 computers off of a 4 port Router? I would like to be able to "uplink" the router into the network.

If this is not possible can I put a second NIC into a computer and run that of the Router and still maintain the network? I guess that would mean running two networks?

All of the machines are running Win98. All are running DHCP.

Thank you for any help.