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Bad trap packet received from Node with IP XX.XX.XX.XX. Error description : Unknown user and engine. Packet discarded

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ERROR TrapService.TrapService - Bad trap packet received from Node with IP 192.168.1.1. Error description : Unknown user and engine. Packet discarded

 

Why receiving such Events when Node sending the Traps to Orion

SNMP V3 Trap packet will be verified against the SNMP Authentication for the Node in order to translate encrypted trap information

 

You can easily reproduce the issue by changing the SNMP information .

You will need to make sure the SNMP information sent by the Node within Trap  is matching against the Node in Orion DB

 

Following needs to be verify . (Edit the Node in Orion ) (Note down the SNMPV3 Username)

 

nodesnmp.JPG

You can also verify the user name from the Nodes table in Orion DB as below.

DBNode.JPG

 

You will need to Run the Wireshark on Orion server  filter the traffic for Traps sent by the Node and verify the User name should be matching when received the Trap

In below packet capture example where Trap sent by the  Node 192.168.1.1  user ABC which caused the above Event that should correct in the Node .

 

 

user.JPG

 

Following example included where the correct SNMP user is been sent by the node within Trap information

 

correct user.JPG

 

So in nut shell you will need to make sure the Node is sending Traps with the same SNMP user account  what is been used in Orion when adding the Node . If it will not match you will have the above Error Event in Orion. Trap packet will be entertained only if sent with correct SNMP User .


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