DescriptionThis indicates detection of the DNP3 Data Link Layer Function NACK.
DNP3 (Distributed Network Protocol) is a set of communication protocols used between components in process automation systems. It is used primarily in utilities like electric or water companies. The communication is done between a master station and Remote Terminal Units (RTUs) or Intelligent Electronic Devices (IEDs). The signature detects the service function in the DNP3 data link layer.
Unexpected network communication
Browser-Based, Network-Protocol, Client-Server, Peer-to-Peer, Cloud-Based, Mobile-Device