A rogue access point in a wireless local-area network can be disabled by an authorized access point wirelessly transmitting a layer-2 broadcast packet. If a rogue access point receives this broadcast packet, it will forward a copy to the switch to which it is connected. The switch then determines whether the port on which the copy of the broadcast packet is received is associated an authorized access point port. If the switch determines the port is not an authorized access point port, the switch shuts down the port.