I'm back on the ISA forums after a couple of years, as I have finally convinced management here to do away with our Symantec box (no end of grief!). Anyway, due to some of the constraints of our network, I have had to install WSUS on our ISA box. I realise this is not ideal, and believe me if there was another way I would have taken it!
Anyway, as I expected none of the clients can connect to this server for registration and download purposes. As I have setup WSUS to use the HTTP protocol for connection, I thought it would be as simple as creating a rule allowing HTTP access for the internal network to the local host (ISA server). This did not work. Anyway, I thought I'd drop the experts a line as you can tell me firstly if this solution will work at all, and probably steer me in the right track.
Before you ask, our ISA topology is an Edge Firewall, with no DMZ.