I am looking for a cheap hardware device to act as a firewall that will prevent Internet access unless it is to the address of my proxy server. I was looking at a Netgear RP614 as a possible solution. Here is the scenario I am working with: I have 27 locations with 25 computers at each. They are for Internet only (a workgroup with addresses supplied by DHCP through a router) and the ISP is cable with a separate connection in each location. The cable company owns the router that is in each location, but we are not able to modify it. We have set up a caching proxy server on an outside address that these clients use for Internet filtering. Problem is that our users are changing the IE settings to not use the proxy. I am looking for a hardware solution that I can put between the switch that we own and their their router that will do only one thing--block all Internet unless they use our proxy address. Other than that I want it to be transparent, letting their router continue to provide natting and DHCP. Does anyone have any ideas? Thanks.