What happens when a "Not Attached" n/w adapter has its cable connected
Posted: 17. Nov 2017, 17:25
From section 6.2 of the Virtual Box documentation, a network interface can be "Not attached":
When a cable is attached, say from the GUI, what type of network is thus created? NAT, Bridged, or some other?Not attached
In this mode, VirtualBox reports to the guest that a network card is present, but that there is no connection -- as if no Ethernet cable was plugged into the card. This way it is possible to "pull" the virtual Ethernet cable and disrupt the connection, which can be useful to inform a guest operating system that no network connection is available and enforce a reconfiguration.