Using a physically disconnected interface

[amuso]

Is it possible to bring up and use a network interface which is not physically connected ?

I would like to use it for virtual machines (using VirtualBox) and create a private network locally on the machine.

I know I can create a network loopback dongle, but I am curious if it is somewhat possible to "force status" to connected under FreeBSD.

 

[wblock@]

Not that I've tried it, but that's what setting the VM network adapter to Internal Network is supposed to do. http://www.virtualbox.org/manual/ch06.html#network_internal