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Send SNMP Trap

This block sends an SNMP trap notification to a manager.

Configuration​

  • Destination IP: address of the SNMP manager to notify.
  • Port: UDP port of the manager. The standard trap port is 162.
  • Community: community string sent with the trap. Defaults to public.
  • Trap OID: the notification OID identifying the trap type, for example 1.3.6.1.4.1.0.0.1.
  • MIB Object (varbind): optional MIB object to include in the trap as a variable binding.

Traps let the device notify a manager as soon as something happens, instead of waiting to be polled. A typical pattern is to write the new reading with Set SNMP Object Value and then send a trap carrying that object as the varbind.

See also Set SNMP Object Value, On SNMP Object Set