-Not specifying either ``iface`` or ``mac`` makes this driver attach itself to
-all unrouted NetVSC interfaces found on the system.
+.. note::
+
+ Not specifying either ``iface`` or ``mac`` makes this driver attach itself to
+ all unrouted NetVSC interfaces found on the system.
+ Specifying the device makes this driver attach itself to the device
+ regardless the device routes.