>> 1) Is it possible to run squid behind a FW? Yes. I am intercepting all HTTP traffic and configure my default gateway to point at the router leading to the internet. >> 2) Can you run Squid on one network card? Yes. >> 3) If two network cards are required and it can run behind a FW, should >> the machine be setup just as a basic router (i.e. 192.168.1.0/25 to/from >> 192.168.1.128/25) before Squid is added? You can use two, for in/out traffic, but one has worked sufficiently for me. At peak times I am processing up to 2,800 requests per minute. I am using squid to do exactly what you are looking to accomplish (control access/gauge utilization). Regards, Scott Phalen -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.11.11 - Release Date: 5/16/2005