All MIBs › IEEE802dot11-MIB › dot11RSNAStatsCCMPDecryptErrors
dot11RSNAStatsCCMPDecryptErrors
Module: IEEE802dot11-MIB
OID (symbolic): IEEE802dot11-MIB::dot11RSNAStatsCCMPDecryptErrors
OID (numeric): 1.2.840.10036.1.12.1.9
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The number of received MPDUs discarded by the CCMP decryption algorithm.
What is dot11RSNAStatsCCMPDecryptErrors?
This counter tracks the number of wireless frames that failed CCMP (Counter Mode with CBC-MAC Protocol) decryption, which is the encryption standard for 802.11i WPA2 security. Frames fail decryption when the encryption key doesn't match or the frame is corrupted in transit. A rising count indicates possible security attacks, incorrect key distribution, or signal quality issues affecting encrypted traffic.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.2.840.10036.1.12.1.9 snmpwalk -v2c -c public <target> IEEE802dot11-MIB::dot11RSNAStatsCCMPDecryptErrors
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.2.840.10036.1.12.1.9.1 snmpget -v2c -c public <target> IEEE802dot11-MIB::dot11RSNAStatsCCMPDecryptErrors.1
Start monitoring Vendor-neutral IEEE 802.11 standard (wireless stations and access points) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the IEEE802dot11-MIB::dot11RSNAStatsCCMPDecryptErrors OID value, configure state conditions and alerts, and monitor any Vendor-neutral IEEE 802.11 standard (wireless stations and access points) from a single console.
OID Breakdown
Upper-level ancestors (1 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| Numeric OID | Name | Module |
|---|---|---|
| 1.2 | member_body | IEEE802dot11-MIB |
| 1.2.840 | us | IEEE802dot11-MIB |
| 1.2.840.10036 | ieee802dot11 | IEEE802dot11-MIB |
| 1.2.840.10036.1 | dot11smt | IEEE802dot11-MIB |
| 1.2.840.10036.1.12 | dot11RSNAStatsTable | IEEE802dot11-MIB |
| 1.2.840.10036.1.12.1 | dot11RSNAStatsEntry | IEEE802dot11-MIB |
| 1.2.840.10036.1.12.1.9 | dot11RSNAStatsCCMPDecryptErrors | IEEE802dot11-MIB |