-Not specifying either ``iface`` or ``mac`` makes this driver attach itself to
-all NetVSC interfaces found on the system.
+- ``force`` [int]
+
+ If nonzero, forces the use of specified interfaces even if not detected as
+ NetVSC.
+
+- ``ignore`` [int]
+
+ If nonzero, ignores the driver running (actually used to disable the
+ auto-detection in Hyper-V VM).
+
+.. 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.