I want to setup a customer location to block all traffic except e-mail and anti-virus updates. So, I allow Ports 25 & 110 for e-mail, but what/how do I configure router to allow NOD32 antivirus update? Not using server to push, individual workstation installs. Or, it the preferred method to make a machine the NOD32 'push' server? After reading here the process, seems way too long and convoluted, no?