Communication Port Usage
Communication Port Usage

Communication Port Usage

The table below displays the ports utilized by the GS20 Connectivity Gateway Leader Module Web HMI.
GS20 Web HMI Communication Port Usage
Port
TCP
UDP
FTP - Data
20
FTP - Communication
21
DHCP Server
67
DHCP Client
68
Web HMI
80
443
NTP
123
Modbus
502
502
EtherNet/IP
2222
Discovery Port
3702
3702
TCP Port
4444
mDNS
5353
mDNS Responder
5354
Listening Port
5555
5555
Communication Port
5556
5556
Output Image
7722
7722
Image Live View
7777
7777
Discovery Port (2)
8889
Discovery Port (3)
9876
Raw TCP Data
25250
Profinet RT Unicast
34962
34962
Profinet RT Multicast
34963
34963
Profinet RT CM
34964
34964
EtherNet/IP
44818
44818
Profinet
49152
Reserved for Gateway Functionality
4012
4012
Reserved for Gateway Functionality
4009
4009
Reserved for Gateway Functionality
8080
8080
Listening to Raw TCP Data from Follower Devices
25250
25250
TCP Port (Host to Leader)
25256
25256
MQTT
8883
8883
Reserved for Gateway Functionality
25170
25170
TCP Port and Raw TCP Data are user-configurable ports.