Yes, I just did not want to have to get another FQDN but I understand what you mean. I decided to do some testing differently and I changed the app to use all internal IPs so that it is now ?facing? the LAN. What I found is that it still did not work on Port 80 because ISA was switching it to use HTTP because of the port 80 usage. I switched the port from 80 to port 25 and the app ran just fine. How can I get ISA to not force the use of HTTP when port 80 is used for the app? I know it is ISA because I can run the app from a machine in the DMZ while it is on port 80 but not from the LAN. I have created a port 80 protocol definition for the app but I am not really sure how I would enforce its use. Steve -----Original Message----- From: Jim Harrison [mailto:jim@xxxxxxxxxxxx] Sent: Monday, January 06, 2003 5:09 PM To: [ISAserver.org Discussion List] Subject: [isalist] Re: Routing an IP http://www.ISAserver.org I'm confused; you can't use FQDN because the IPs are different? You don't have to use the same FQDN as the web page; you create another FQDN that resolves to the application's IP address. Jim Harrison MCP(NT4, W2K), A+, Network+, PCG http://isaserver.org/pages/author_index.asp?aut=3 http://isatools.org Read the help / books / articles! belists.com