Greets! As I understand it, in order to collect the true IP address (as opposed to the external interface of the ISA server) of a client when visiting a published (internal) server, we need to use Server Publishing rather than Web Publishing. (If there is another way, please let me know). I have a couple of Q's about exactly how to implement this. First, there is no HTTP protocol mapping in the Server Publishing rules wizard, so I had to make my own -> TCP 80 Inbound. (There is an HTTP outbound protocol definition, but this does not show up when doing Server Publishing; besides, it is outbound.) So, I then delete my Web Publishing rule, and do a Server Publishing rule to take requests for the specific external IP address, and redirect it to the internal IP address for that particular site, specifying the newly mapped custom Web protocol. I'm not sure what I am missing, but this does not work. The web site comes up as "Cannot Be Displayed". I seem to remember seeing an in-depth description of how to do this specifically, but can't find it. Any pointers would be appreciated. --------------------------------- Attonbitus Deus Thor@xxxxxxxxxxxxxxx