The Inter-Control Center Communications Protocol (ICCP or IEC 60870-6/TASE.2)[1] is being specified by utility organizations throughout the world to provide data exchange over wide area networks (WANs) between utility control centers, utilities, power pools, regional control centers, and Non-Utility Generators. ICCP is also an international standard: International Electrotechnical Commission (IEC) Telecontrol Application Service Element 2 (TASE.2).
This SonicWALL signature identifies legitimate ICCP -- Invalid OSI-SSEL traffic. |