All MIBs › SNMP-USER-BASED-SM-MIB › usmStatsDecryptionErrors
usmStatsDecryptionErrors
Module: SNMP-USER-BASED-SM-MIB
OID (symbolic): SNMP-USER-BASED-SM-MIB::usmStatsDecryptionErrors
OID (numeric): 1.3.6.1.6.3.15.1.1.6
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 could not be decrypted.
What is usmStatsDecryptionErrors?
This Counter32 counts SNMP packets the engine dropped because it could not decrypt them under the user's privacy (encryption) protocol. It points to a privacy-key mismatch between manager and agent, distinct from the authentication failures tracked by usmStatsWrongDigests. An admin who just rotated a user's privacy key on the device but forgot to update the manager's config would see this counter rise with every subsequent authPriv poll.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.6.3.15.1.1.6 snmpwalk -v2c -c public <target> SNMP-USER-BASED-SM-MIB::usmStatsDecryptionErrors
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.6.3.15.1.1.6.1 snmpget -v2c -c public <target> SNMP-USER-BASED-SM-MIB::usmStatsDecryptionErrors.1
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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 |
| 1.3.6.1.6.3.15.1.1.6 | usmStatsDecryptionErrors | SNMP-USER-BASED-SM-MIB |