per user vm isolation with shared network

[daggs via Users]

Greetings,

I have two vm which I want to isolate per user, if I'm not mistaken, I can to 
that with per session uri.
but I want to setup a virtual bridge so they will get connected with each other.
looks like that if I define the network as system, it isn't visible in the 
session.
is there a way to do that? if I define the same network in both sessions, will 
it work?

Thanks,

Dagg