So, when you create a network in ISA/TMG, it asks you what kind it is so that it can make some sort of classification as to the trust level: i.e. "Perimeter" vs "Internal" or whatever. What does on in the "background" when this determination is made? Meaning, if I create network Foo and call it Internal and then create network Bar and call it Perimeter, does TMG "do something" to the rules or relationships that I don't know about? I've never really worried about it, but something odd is happening in particular config and I'd like more infoz on this. Most importantly, if TMG *does* do something, is it something I can override? Thanks. t