Okay, I have another setup question, and sorry if this is a silly question, but I am a bit confused as to ISA's capabilities. Let's say I set up my router on the 192.168.1 subnet, with my ISA server on the same subnet. Then my internal network is 192.1.2. First of all, will this work? And secondly, can I still publish the Exchange server and Web servers using these addresses?? Thankyou very much in advance!!