I am in need of assistance, I just setup a tri-homed ISA server and everything is working fine, my internal users can access the Internet and the web server in the DMZ, and external users can access our web server in the DMZ. My problem is, I need my web server in the DMZ to talk to a server on my internal network using TCP on port 9000. I have tried creating protocol definitions and packet filters with no luck, any advice would be welcomed.