Configure SNMP trap ports

During device discovery, EcoStruxure IT Gateway automatically attempts to register itself as a trap receiver with APC and Schneider Electric SNMPv1 devices with a Network Management Card (NMC) on port 1062.

In Gateway 1.10 and newer, you can configure additional SNMP ports in the Settings > Advanced > SNMP trap ports option. 

Tip: Running an older Gateway version? See How to update your Gateway software

Allowed ports are 0 - 65535. The default system trap port 1062 cannot be changed. The configurable port list contains port 162 by default to support the default for most third party devices.

Note: Make sure you adjust firewall rules to allow for any additional ports you add in the Gateway.

You do not have to restart the Gateway after changing the list of available ports.

Traps and informs in the Gateway

The Gateway listens for SNMPv1 traps, and starting in Gateway 1.18, SNMPv3 traps and informs for discovered APC NMC and third party devices. See Configure SNMPv3 traps and informs in the Gateway

APC NMC devices

Discovered APC NMC SNMPv3 devices are not automatically registered as trap receivers. The SNMPv3 device must be configured for SNMPv3 traps:

SNMPv3

• Username
• Authentication and password: SHA, MD5, or None
• Encryption type and password: AES256, AES192, AES128, DES3, DES, or None
• Port:
  • Port 1062, 162, or a port you specify in the Settings > Advanced > SNMP trap ports option

Note: APC NMC devices send traps to every registered trap listener.

Need help for APC NMC devices?

Third party devices

To allow the Gateway to receive traps from third party devices, Schneider Electric devices without an NMC, or NMC SNMPv3 devices - in other words, devices where the Gateway cannot automatically register itself as a trap receiver - you must manually configure each device with these trap receiver settings:

SNMPv1

• NMS IP address/Host name: Your EcoStruxure IT Gateway IP address
• Port:
  
  • Gateway version 1.10 or later:  Port 1062, 162, or a port you specify in the Settings > Advanced > SNMP trap ports option*
• Community string: public

SNMPv3

• NMS IP address/Host name: Your EcoStruxure IT Gateway IP address
• Username
• Authentication and password: SHA, MD5, or None
• Encryption type and password: AES256, AES192, AES128, DES3, DES, or None
• Port:
  • Port 1062, 162, or a port you specify in the Settings > Advanced > SNMP trap ports option*

*Gateway versions 1.9 and earlier required 1062 as the trap port for third party devices.

Some devices may require additional device-specific settings for traps to be sent. Consult the user manual for the device for more information.

When EcoStruxure IT Gateway receives a trap from a device, it immediately polls the alarms that are predefined for the device. It does not process the content of the trap message. It does not poll the sensors immediately, which means that alarms created based on sensor thresholds will not be updated until the next scheduled poll.

See How often does the Gateway poll monitored devices?