Patent ID: 11863984
Assignee: WATCHGUARD TECHNOLOGIES, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. An access point (AP), comprising:
at least one IEEE 802.11 radio configured to support at least one PHY (Physical layer) and MAC (Media Access Channel layer) defined by an IEEE 802.11 PHY standard;
a processor, operatively coupled to the at least one IEEE 802.11 radio;
memory, coupled to the processor; and
logic configured to,
generate a security token using at least one cryptographic operation employing a secret key;
broadcast a first beacon comprising a first trusted beacon including a service set identifier (SSID) for the AP and containing the security token in a data field of a vendor-specific information element (IE) in the first beacon;
receive a second beacon including the SSID broadcast by a second AP; and
examine content of multiple IEs in the second beacon to detect the second beacon was broadcast by an evil twin AP.