SNMP Trap Listener

SNMP Trap Listener can be configured in such a way that, if a particular trap is received, actions can be configured and alarms will be generated accordingly. For e.g., you can configure a trap listener for system shutdown, you can assign the severity as critical and also associate an email action through SNMP Trap Listener. If the trap is received, then the severity becomes critical and an email alarm is generated.

The default port through which the traps are received is 1620. The default port can be changed by modifying <am.traplistener.port> property in <AMServer.properties> under AppManager Home/Conf directory. Restart the server for the changes to take effect.

Follow the steps given below to add a SNMP Trap Listener.

1. Under Admin Tab, Click on 'Add' in SNMP Trap Listener. It takes you to 'Add SNMP Trap Listeners' page.

2. Enter the Trap Listener Name.

3. Status is 'enable' by default.

4. Select the SNMP Trap version

5. If the version is v1, then select the Generic Type. The various generic types are coldStart, warmStart, linkDown, linkUp, authenticationFailure, egpNeighborLoss, and enterpriseSpecific. If you select enterpriseSpecific type, you can also provide wildcard symbol ' * ' or numeric value for Specific Type field.

6. Enter the Enterprise OID. You can use the MibBrowser to get the Object ID. If you select a Parent OID from the MibBrowser, all child OIDs will also be automatically listened.

7. If the version is v2c, then enter the Trap OID.You can use the MibBrowser to get the Object ID.

8. Select the Severity. It can be Clear, Warning or Critical.

9. Trap can be received from any Host or you can specify the Host from which the trap can be received.

10. Associated actions that need to be executed when the trap is received, can be chosen from the list of actions configured. Save the Trap Listener.

You can view the Traps by clicking on 'View' from the Admin Tab. It opens up to 'View SNMP Trap Listeners' page, in which details about the trap listeners are given. Edit option is available to modify the traps listeners. Also, the alarms configured for the traps received can be viewed from the Alarms Tab.

Note: Dell OpenManage can be integrated with ManageEngine Applications Manager via the SNMP Trap Listener. More in Application Manager's blog.