88 • SMP Gateway User Manual
CoDeSys server 1200 TCP
Passthrough server 32500 TCP
If using VPN, open
Application Port Protocol
SMP Status 23 UDP
PPTP (VPN) 1723 TCP and UDP
PPTP (VPN) - GRE
Here is a list of the most commonly used ports for RTU and SCADA communication:
SMP Config Protocol Port
DNP3 20000
IEC 60870-5-104/103 2404
IEC 61850 102
ICCP 102
MODBUS 502
If you configured system folders on your SMP Gateway (see “Defining System Folders”, page
119) and the Windows XP or Windows Server 2003 built-in firewall is enabled on your PC, you
m
ust also open the following ports:
445 (TCP protocol).
137, 138 and 139 (UDP protocol), if you are running NETBIOS on your network.
If you are using SNMP, you will also need to open the following ports:
GET and SET commands go through port number 161.
SNMP traps go through port 162.
IMPORTANT:
This configuration will work only if your network DOES NOT use address translation. Check with
your network administrator.
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