[BlueOnyx:04815] Firewall for Datacenter

[Gerald Waugh]

Please excuse the crosspost

We have a number of servers on a Class C network in a data center and
would like to install a Linux firewall.
TOPOLOGY AS BELOW.

INTERNET
  |
ROUTER
  |
FIREWALL
  |
SWITCH
  |
SERVERS

I have looked at using bridged firewall, as we do not need/want NAT.
So far mixed results and can't seem to find one that includes a GUI.


Any suggestions?

Gerald