All MIBs › ACC-IPSEC › accIpsecStatsMd5Mistmatches
accIpsecStatsMd5Mistmatches
Module: ACC-IPSEC
OID (symbolic): ACC-IPSEC::accIpsecStatsMd5Mistmatches
OID (numeric): 1.3.6.1.4.1.5.1.1.81.2.13
Node type: OBJECT-TYPE
Type: Counter
Access: read-only
Description: Number of packets dropped because the MD5 authenticator was incorrect
What is accIpsecStatsMd5Mistmatches?
ACC-IPSEC::accIpsecStatsMd5Mistmatches counts inbound packets discarded because their MD5 authentication tag (HMAC) did not validate when decrypted, indicating corruption or tampering in the same way SHA-1 mismatches do. You watch this counter to identify if your cryptographic keys are out of sync with the peer or if the network is introducing errors. For example, if both the MD5 and SHA-1 mismatch counters are rising together, the shared keys are likely out of sync and need to be renegotiated.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.5.1.1.81.2.13 snmpwalk -v2c -c public <target> ACC-IPSEC::accIpsecStatsMd5Mistmatches
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.5.1.1.81.2.13.1 snmpget -v2c -c public <target> ACC-IPSEC::accIpsecStatsMd5Mistmatches.1
Start monitoring ACC/Ericsson WAN access routers (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ACC-IPSEC::accIpsecStatsMd5Mistmatches OID value, configure state conditions and alerts, and monitor any ACC/Ericsson WAN access routers (legacy) from a single console.
OID Breakdown
Upper-level ancestors (9 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 |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.5 | acc | ACC-MIB |
| 1.3.6.1.4.1.5.1 | accSBAR | ACC-MIB |
| 1.3.6.1.4.1.5.1.1 | accBRG | ACC-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.5.1.1.81 | accIpsec | ACC-IPSEC |
| 1.3.6.1.4.1.5.1.1.81.2 | accIpsecStats | ACC-IPSEC |
| 1.3.6.1.4.1.5.1.1.81.2.13 | accIpsecStatsMd5Mistmatches | ACC-IPSEC |