DLINKSW-DOT1X-EXT-MIB :: dDot1xExtAuthBackendAuthFails

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DLINKSW-DOT1X-EXT-MIB › dDot1xExtAuthBackendAuthFails

dDot1xExtAuthBackendAuthFails

Module: DLINKSW-DOT1X-EXT-MIB

OID (symbolic): DLINKSW-DOT1X-EXT-MIB::dDot1xExtAuthBackendAuthFails

OID (numeric): 1.3.6.1.4.1.171.26.30.1.4.1.20

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: Counts the number of times that the state machine receives an EAP-Failure message from the Authentication Server (i.e., aFail becomes TRUE, causing a transition from RESPONSE to FAIL). Indicates that the Supplicant has not authenticated to the Authentication Server.

What is dDot1xExtAuthBackendAuthFails?

This read-only Counter32 counts EAP-Failure messages received from the RADIUS server, i.e. the supplicant's credentials were explicitly rejected by the backend, which an admin uses to distinguish credential failures from timeouts.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.171.26.30.1.4.1.20
snmpwalk -v2c -c public <target> DLINKSW-DOT1X-EXT-MIB::dDot1xExtAuthBackendAuthFails

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.171.26.30.1.4.1.20.1
snmpget -v2c -c public <target> DLINKSW-DOT1X-EXT-MIB::dDot1xExtAuthBackendAuthFails.1

Start monitoring D-Link managed switch (802.1X extensions: dynamic/guest VLAN) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DLINKSW-DOT1X-EXT-MIB::dDot1xExtAuthBackendAuthFails OID value, configure state conditions and alerts, and monitor any D-Link managed switch (802.1X extensions: dynamic/guest VLAN) from a single console.

OID Breakdown

Upper-level ancestors (8 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.171d_linkDE1500-MIB
1.3.6.1.4.1.171.26dlinkIndustrialCommonDLINK-ID-REC-MIB
Numeric OIDNameModule
1.3.6.1.4.1.171.26.30dlinkSwDot1xExtMIBDLINKSW-DOT1X-EXT-MIB
1.3.6.1.4.1.171.26.30.1dDot1xExtMIBObjectsDLINKSW-DOT1X-EXT-MIB
1.3.6.1.4.1.171.26.30.1.4dDot1xExtAuthDiagTableDLINKSW-DOT1X-EXT-MIB
1.3.6.1.4.1.171.26.30.1.4.1dDot1xExtAuthDiagEntryDLINKSW-DOT1X-EXT-MIB
1.3.6.1.4.1.171.26.30.1.4.1.20dDot1xExtAuthBackendAuthFailsDLINKSW-DOT1X-EXT-MIB