We've had a standard setup on our Sonicwall of X0 interface internal subnet and X1 interface outward facing to the internet. I would like to open up another outward interface, let's say X2, to pipe in wireless internet with a wireless router. So my question is, do I use the same outward facing IP address as X1? Or will that mess things up for our internal network? Do I need a different outward facing IP address for this?