Hey, 1. Create a protocol definition for the service you want to publish. 2. Add the external IP to the external ISA card 3. Make sure the service works internally before publishing 4. Create a server publishing rule, and give it the internal IP of the internal server, the external IP (as assigned to the ISA server) and choose the relevant protocol rule. Note, you cant just map an IP address out so that EVERYTHING goes to it, you have to do it 1 service at a time with protocol definitions. Regards, Jeremy.