Internet-Security.com TCP port 44818 details

TCP port 44818 is used by EtherNet/IP (ODVA’s Common Industrial Protocol, CIP) for explicit messaging and session management.
Rockwell Automation Allen-Bradley devices such as ControlLogix and CompactLogix controllers, Micro800 PLCs, and PowerFlex drives listen on 44818 for CIP communication.
Rockwell software including RSLinx Classic/FactoryTalk Linx and Studio 5000 Logix Designer (via Linx) connects to PLCs on 44818.
Industrial drivers and gateways such as Inductive Automation Ignition’s EtherNet/IP driver, Kepware KEPServerEX EtherNet/IP, and AVEVA/Wonderware OI Server for Allen‑Bradley use TCP 44818 to communicate with EtherNet/IP targets.
Many third‑party devices implement it too, e.g., Omron NJ/NX series controllers, Cognex In‑Sight vision sensors, Fanuc robots with the EtherNet/IP option, and HMS Anybus EtherNet/IP adapters.
Vendors like Bosch Rexroth (IndraDrive), SMC fieldbus modules, and SICK sensors provide EtherNet/IP-enabled equipment that responds on 44818 for explicit CIP messaging.
Security note: exposed 44818 services are routinely probed in ICS incidents; misconfigured EtherNet/IP endpoints can allow unauthenticated tag reads/writes or device control, and multiple Rockwell/ODVA advisories involve issues reachable via this port.

TCP 44818