IP bridge over ConnectPorts

Hi I am looking to do something like described here


Where the we want IP over xbee/zigbee rather than xbee/zigbee over IP and preferably in a mesh network.

And over what range? Can the antenna be amplified within regulations to cover greater distances?

Can you confirm if this is possible, what would be needed presumably 3+ ConnectPort X2 though which variety and how to go about it or reference to documentation that would describe the like.

Many Thanks