Hello, As anybody on the list setup an ISA caching only as a reverse proxy, ie I want to host a number of web sites, but use one external ip address, FW1 will nat the address from external address to internal address 10.2.1.1 which will in relay to a number of web servers on 10.2.1.x network. I want the public to access sites on port 80 abd have no proxy settings in the browser. Public ---> Firewall --- Proxy ---- DMZ Various Web Servers valid ip 10.2.1.0 network