Originally Posted by suicidaleggroll
Could you describe this a bit more? What do you mean "so it can run independently of the host ip"? All you have to do is switch the VirtualBox network settings from NAT to Bridged and the VM will get its own IP on the main network. As far as any other system on the network is concerned, it's it's own real computer with it's own real NIC plugged into the switch like everyone else. From the sound of it, you're plugging in a USB NIC and passing it through to the VM to accomplish the same thing?
The short answer would be, that im a creature of habit, sometimes ill go bridged, other times NAT but once i started using Kali for some security courses the external nic (alfa) made life much easier, but i think that habit jumped up and bit me.
You're spot on that im basically passing the usb nic through to the visor, for pen-testing with kali in a virtual environment