| Description | This article describes the error code returned by FortiGate as a result of the SNMP server queries for non-existent OIDs. |
| Scope | FortiGate. |
| Solution |
Run these debugging commands in FortiGate's command line interface (CLI) or while connected to FortiGate via SSH:
diagnose debug reset diagnose debug application snmpd -1 diagnose debug enable
To stop the debug:
diagnose debug reset diagnose debug disable
Debug output:
snmpd: <msg> 42 bytes 192.168.50.202:63156 -> 192.168.50.252/192.168.50.252:161 (itf 3.3) snmpd: checking if community "Public" is valid snmpd: checking against community "Public" snmpd: request 1(root)/3/192.168.50.202 == comm 1/0/192.168.50.202/255.255.255.255 snmpd: matched community "Public" snmpd: get : mib-2.25.1 -> () -> 3 snmpd: snmp_get failed : 3 snmpd: </msg> 1
SNMP error code 3 means noSuchName. This error indicated that the requested Object Identifier (OID) is not recognized by the FortiGate SNMP agent. To resolve this issue, verify the OID against the MIB files to ensure its validity and support.
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