Firewall rules: Ports

The table below shows a full list of the necessary ports that need to communicate on the network.
Port type and name
Comments
TCP port 25
Standard SMTP email port
TCP port 80
Standard WWW port
TCP port 135
RPC/DCOM endpoint mapper
DCOM uses TCP Port 135 to establish communication and randomly assign ports from 1000 through 65535.
TCP port 443
HTTPS connection when SSL/TLS is enabled.
TCP port 445
File and printer sharing
TCP port 1433
Communications to SQL Server
TCP port 2222
Source port for connections
TCP port 4241
FactoryTalk Live Data Message for FactoryTalk Linx (RSLinxNG.exe)
TCP port 5241
FactoryTalk Application Services
TCP ports 7002 - 7004
FactoryTalk AssetCentre
UDP port 137
File and printer sharing
UDP port 138
File and printer sharing
UDP port 1434
Browsing for SQL Servers
UDP port 21060
Rockwell Automation Trace Diagnostics
UDP port 21061
Rockwell Automation Trace Diagnostics
TCP/UDP 44818
Ethernet/IP, messaging, data transfer, or peer messaging
You may need to open ports for other Rockwell Automation products as well. See .
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