CLNS-MIB :: clnpInErrUnsSecurities

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCLNS-MIBclnpInErrUnsSecurities

clnpInErrUnsSecurities

Module: CLNS-MIB

OID (symbolic): CLNS-MIB::clnpInErrUnsSecurities

OID (numeric): 1.3.6.1.3.1.2.21

Node type: OBJECT-TYPE

Type: Counter

Access: read-only

Description: The number of unsupported security option CLNP Error PDUs received by this entity.

What is clnpInErrUnsSecurities?

This read-only Counter counts unsupported security-option CLNP Error PDUs received by this entity. An admin cares because it shows a receiver rejected a PDU from this device because it couldn't process the security option included. For example, unsupported-security errors after turning on CLNP security labeling reveal which neighbors' stacks lack that feature.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.3.1.2.21
snmpwalk -v2c -c public <target> CLNS-MIB::clnpInErrUnsSecurities

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.3.1.2.21.1
snmpget -v2c -c public <target> CLNS-MIB::clnpInErrUnsSecurities.1

Start monitoring OSI CLNP/CLNS-capable router (vendor-neutral) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CLNS-MIB::clnpInErrUnsSecurities OID value, configure state conditions and alerts, and monitor any OSI CLNP/CLNS-capable router (vendor-neutral) from a single console.

OID Breakdown

Upper-level ancestors (5 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.3experimentalAXON-MIB
Numeric OIDNameModule
1.3.6.1.3.1clnsCLNS-MIB
1.3.6.1.3.1.2errorCLNS-MIB
1.3.6.1.3.1.2.21clnpInErrUnsSecuritiesCLNS-MIB