This is how I've setup my network:
Internet -- Router -- Untangle (UT) -- LAN Switch -- PC Workstation
After connecting the UT to the switch using the internal bridged card, I can access it just fine (https, http, java console, ssh). However, when I plug the external nic to the router, nothing happens. I cannot connect to the internet and the link light on the router doesn't light up. I have configured eth0 as static and eth1 as bridge. UT is setup on a dedicated Compaq Presario SR1020T, Intel(R) Pentium(R) 4 CPU 3.20GHz and 2.47 GB of RAM. What is it that I am missing.