All MIBs › DNS-TRAPS-MIB › alarmUnknownMessageReceived
alarmUnknownMessageReceived
Module: DNS-TRAPS-MIB
OID (symbolic): DNS-TRAPS-MIB::alarmUnknownMessageReceived
OID (numeric): 1.3.6.1.4.1.1166.7.5.2.26
Node type: OBJECT-TYPE
Type: Integer32
Access: read-only
Description: Alarm which occurs when an unknown message is received. This is a counter for the trap 26.
What is alarmUnknownMessageReceived?
This Integer32 counter increments whenever the device receives a message it does not recognize, and it is the counter backing trap 26. Admins monitor it to detect protocol mismatches, unsupported peer software versions, or unexpected traffic reaching a management or signaling interface. For example, a peer running a newer protocol version that sends message types this device's firmware doesn't understand would cause this counter to climb.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1166.7.5.2.26 snmpwalk -v2c -c public <target> DNS-TRAPS-MIB::alarmUnknownMessageReceived
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.1166.7.5.2.26.1 snmpget -v2c -c public <target> DNS-TRAPS-MIB::alarmUnknownMessageReceived.1
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OID Breakdown
Upper-level ancestors (8 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 |
| 1.3.6.1.4.1.1166 | gi | BCS-IDENT-MIB |
| 1.3.6.1.4.1.1166.7 | bcs | BCS-IDENT-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.1166.7.5 | dns | DNS-TRAPS-MIB |
| 1.3.6.1.4.1.1166.7.5.2 | dnsAlarms | DNS-TRAPS-MIB |
| 1.3.6.1.4.1.1166.7.5.2.26 | alarmUnknownMessageReceived | DNS-TRAPS-MIB |