Required Ports

The following table lists the ports used by sensors, the Ethernet-based protocols, the SDK, and the PC-based accelerator. Use this information to determine whether you need to open ports on your network and to understand the traffic that a sensor system will produce over a network.

Ports used
Port Data Packet Protocol Description
80 TCP Server for sensor web interface
502 TCP Modbus protocol communication
2016 UDP Internal (protocol-independent)
2017 TCP Internal (protocol-independent)
2018 TCP Internal (protocol-independent)
2019 TCP Internal (protocol-independent)
2020 UDP Gocator protocol discovery; SDK; accelerator

3189

TCP

Flash security policy server (only in Gocator 4.7 and earlier releases)

3190

TCP

Gocator protocol control channel; SDK; accelerator

3191

TCP

Emulator web port

3192

TCP

Gocator protocol upgrade channel; SDK; accelerator

3194

TCP

Gocator protocol health channel; SDK; accelerator

3195

TCP

Gocator protocol private data

3196

TCP

Gocator protocol discovery; SDK; accelerator
3197 UDP Emulator scenario management (RPC)

3220

UDP

Gocator protocol discovery; SDK; accelerator
8190 TCP ASCII protocol

44818

TCP

EtherNet/IP protocol (standard port)

44818

UDP

EtherNet/IP protocol (standard port)

For more information on how the different protocols use these ports, see the appropriate section in Protocols.