Patent ID: 11956262
Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 4:
5. The anomaly detection device according to claim 3, wherein
the detection rule generator circuit:
checks the communication type written in the communication establishment frame;
checks whether there is a detection rule that includes the set of the communication ID and the server address written in the communication establishment frame when the communication type is the service offer stop, and determines that the communication establishment frame is anomalous when the detection rule does not exist; and
checks whether there is a detection rule that includes the set of the communication ID and the client address written in the communication establishment frame when the communication type is the service subscription stop, and determines that the communication establishment frame is anomalous when the detection rule does not exist.