All MIBs › SNMP-USER-BASED-SM-MIB › usmStatsUnsupportedSecLevels
usmStatsUnsupportedSecLevels
Module: SNMP-USER-BASED-SM-MIB
OID (symbolic): SNMP-USER-BASED-SM-MIB::usmStatsUnsupportedSecLevels
OID (numeric): 1.3.6.1.6.3.15.1.1.1
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The total number of packets received by the SNMP engine which were dropped because they requested a securityLevel that was unknown to the SNMP engine or otherwise unavailable.
What is usmStatsUnsupportedSecLevels?
This Counter32 tallies SNMP packets the agent's engine has dropped solely because they requested a securityLevel - noAuthNoPriv, authNoPriv, or authPriv - that the engine did not recognize or could not provide for that user. It flags SNMPv3 clients whose security-level setting doesn't match how the target user was actually provisioned in the local usmUserTable, such as a manager demanding authPriv against a user configured without a privacy protocol. For example, if a monitoring tool is set to authPriv but the device's SNMPv3 user only has authNoPriv configured, every poll increments this counter and the poll itself fails.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.6.3.15.1.1.1 snmpwalk -v2c -c public <target> SNMP-USER-BASED-SM-MIB::usmStatsUnsupportedSecLevels
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.6.3.15.1.1.1.1 snmpget -v2c -c public <target> SNMP-USER-BASED-SM-MIB::usmStatsUnsupportedSecLevels.1
Start monitoring vendor-neutral, standards-based MIB, any device or host running an SNMPv3 agent (USM user credentials/security-violation counters) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the SNMP-USER-BASED-SM-MIB::usmStatsUnsupportedSecLevels OID value, configure state conditions and alerts, and monitor any vendor-neutral, standards-based MIB, any device or host running an SNMPv3 agent (USM user credentials/security-violation counters) from a single console.
OID Breakdown
Upper-level ancestors (6 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.6 | snmpV2 | DASAN-DHCP-MIB |
| 1.3.6.1.6.3 | snmpModules | RAPID-CITY |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.6.3.15 | snmpUsmMIB | SNMP-USER-BASED-SM-MIB |
| 1.3.6.1.6.3.15.1 | usmMIBObjects | SNMP-USER-BASED-SM-MIB |
| 1.3.6.1.6.3.15.1.1 | usmStats | SNMP-USER-BASED-SM-MIB |
| 1.3.6.1.6.3.15.1.1.1 | usmStatsUnsupportedSecLevels | SNMP-USER-BASED-SM-MIB |