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How do I test an SNMP Trap Receiver Sensor?

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I have added an SNMP Trap Receiver sensor to my PRTG.

It seems that it doesn't work properly. How can I test if Traps are received and if the sensor works?

help prtg snmp trap trap-receiver

Created on Oct 13, 2010 11:00:11 AM by  Daniel Zobel [Paessler Support]

Last change on Feb 4, 2014 6:02:19 PM by  Gerald Schoch [Paessler Support]



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This article applies to PRTG Network Monitor 14.1.8 or later

Testing an SNMP Trap Receiver Sensor

  1. Use Wireshark to make sure that the SNMP traps you want to monitor are actually received on the computer that is running the probe with the SNMP Trap Receiver sensor.
  2. Make sure that the PRTG probe listens on port 162 (or the one defined in the settings of your SNMP Trap Receiver sensor). For this purpose, you can use the following command line command: netstat -ano
    • You need to do the following only in deprecated PRTG versions previous to 14.1.8.
      In the settings of your SNMP Trap Receiver, enter 1.3.6.1.4.1.32446.1.1.4 as OID value. This is the OID PRTG uses for its own SNMP Trap Notifications. We will use this notification type for our test.
  3. Create a new notification of the type Send SNMP Trap. As Host/IP enter the IP address of the probe on which you created the SNMP Trap Receiver sensor and save your settings.
  4. Click Test for the SNMP Trap notification you have just created. PRTG will now send an SNMP trap to the target probe. If the trap has been received correctly by the probe, it will show up in the SNMP Trap Receiver sensor after a while. Please make sure that you have not excluded this message in the sensor settings!

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Created on Oct 13, 2010 11:08:39 AM by  Daniel Zobel [Paessler Support]

Last change on Apr 17, 2019 10:54:11 AM by  Maike Behnsen [Paessler Support]



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Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.