+ parser.add_option("-N", "--vif-name", dest="vif_name",
+ help = "The name of the virtual interface, or a "
+ "unique numeric identifier to name the interface "
+ "if GRE mode is used.",
+ type="str")
+
+ parser.add_option("-D", "--delete", dest="delete",
+ action="store_true",
+ default = False,
+ help="Removes virtual interface if GRE mode was used")
+