I have not used this personally. However, I would be interested to know if anyone else has. Or if anyone has the capability to test it out and let us know about it.
I saw this originally in "Untangle turns ordinary PC into security box" --
http://www.infoworld.com/article/08/09/16/Untangle_turns_ordinary_PC_into_security_box_1.html .
It looks like there are two different setups: 1) an Untangle Gateway requiring a dedicated PC and 2 (or 3) NICS, for larger networks and 2) Untangle Re-router that can run on an existing Windows XP PC with just 1 NIC for smaller networks (25 PCs or less).
Here are some links to more information on the Untangle website:
main page --
http://www.untangle.com/Re-Router --
http://www.untangle.com/index.php?option=com_content&task=view&id=434&Itemid=1527Support Overview --
http://www.untangle.com/index.php?option=com_content&task=view&id=48&Itemid=75Documentation --
http://wiki.untangle.com/index.php/Main_PageForums --
http://forums.untangle.com/
