wps_er_pbc <Enrollee UUID>
- accept an Enrollee PBC using External Registrar
-wps_er_pin <Enrollee UUID> <PIN>
+wps_er_pin <Enrollee UUID> <PIN> [Enrollee MAC address]
- add an Enrollee PIN to External Registrar
+- if Enrollee UUID is not known, "any" can be used to add a wildcard PIN
+- if the MAC address of the enrollee is known, it should be configured
+ to allow the AP to advertise list of authorized enrollees
WPS ER events: