Originally posted here by Vorlin
There's a linux-based-firewall-router-on-a-floppy called BBIAgent. That would do everything you need and you don't need much of anything to run it.

The page is www.bbiagent.com .
hehe... Vorlin, that's usually my reply... promoting BBIagent.

Indeed BBIagent is like freesco (perhaps even easier to use). It's pretty secure.
But for the particular problem in this thread, if I understand correctly, BBIagent is not the best choice cause it has less features then Freesco. Freesco can act as a simple bridge with up to 3 Ethernet segments or as a router with up to 3 Ethernet segments. While BBIagent only acts as a router / firewall / bridge between 2 ethernet segments.
WAN ----> LAN

Here the problem is:
Code:
WAN ---> LAN1
    ---> LAN2
However thx to promote BBIAgent