Flow Ctrl Tech Engineering

Wireshark Packet Analysis for Industrial Ethernet: Decoding CIP, Profinet & ARP Storms

Diagnose elusive network drops and jitter: configuring managed switch port mirroring (SPAN), capturing Industrial Ethernet traffic, and using Wireshark display filters.

  • Standard switch ports only receive unicast traffic destined for their own MAC; SPAN port mirroring is mandatory for packet capture.
  • Wireshark includes specialized dissectors for Profinet, EtherNet/IP, Modbus TCP, and OPC UA.
  • High packet delta times and TCP retransmissions reveal failing cables, loose RJ45 connectors, or duplex mismatches.

Flow Ctrl Tech Engineering: Turnkey industrial automation, PLC programming, SCADA development, HMI, fieldbuses, and IIoT architectures. Contact our engineering center at [email protected] or phone +91 91110 91005.