| OID | Object | Syntax | Max Access | Description | Implemented Specifications | 
|---|---|---|---|---|---|
| 1.3.6.1.6.3.15.1.1.3 | usmStatsUnknownUserNames | Counter32 | read-only | The total number of packets received by the SNMP engine which were dropped because they referenced a user that was not known to the SNMP engine. | This object is implemented as defined in the corresponding MIB files. |