Juniper-ISIS-MIB :: juniIsisSysL1CircAuthenticationKeyType

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Juniper-ISIS-MIB › juniIsisSysL1CircAuthenticationKeyType

juniIsisSysL1CircAuthenticationKeyType

Module: Juniper-ISIS-MIB

OID (symbolic): Juniper-ISIS-MIB::juniIsisSysL1CircAuthenticationKeyType

OID (numeric): 1.3.6.1.4.1.4874.2.2.38.1.2.2.1.5

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: What authentication scheme, if any, is used to protect Level 1 hello packets.

What is juniIsisSysL1CircAuthenticationKeyType?

Read-write enumeration (none, plaintext, hmacMd5; default hmacMd5) selecting the authentication scheme for Level 1 hello packets specifically (as opposed to LSPs). Admins set this to hmacMd5 to require cryptographically authenticated hellos before a Level 1 adjacency can form.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4874.2.2.38.1.2.2.1.5
snmpwalk -v2c -c public <target> Juniper-ISIS-MIB::juniIsisSysL1CircAuthenticationKeyType

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4874.2.2.38.1.2.2.1.5.1
snmpget -v2c -c public <target> Juniper-ISIS-MIB::juniIsisSysL1CircAuthenticationKeyType.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.4874.2.2.38.1.2.2.1.5.1 i <value>

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> juniIsisSysL1CircAuthenticationKeyType.1

Start monitoring Juniper E-series router (IS-IS routing protocol) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Juniper-ISIS-MIB::juniIsisSysL1CircAuthenticationKeyType OID value, configure state conditions and alerts, and monitor any Juniper E-series router (IS-IS routing protocol) from a single console.

OID Breakdown

Upper-level ancestors (9 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
1.3.6.1.4.1.4874juniperUniJuniper-UNI-SMI
1.3.6.1.4.1.4874.2juniperUniMibsJuniper-UNI-SMI
1.3.6.1.4.1.4874.2.2juniMibsJuniper-MIBs
Numeric OIDNameModule
1.3.6.1.4.1.4874.2.2.38juniIsisMIBJuniper-ISIS-MIB
1.3.6.1.4.1.4874.2.2.38.1juniIsisObjectsJuniper-ISIS-MIB
1.3.6.1.4.1.4874.2.2.38.1.2juniIsisCircuitGroupJuniper-ISIS-MIB
1.3.6.1.4.1.4874.2.2.38.1.2.2juniIsisSysL1CircAuthenticationTableJuniper-ISIS-MIB
1.3.6.1.4.1.4874.2.2.38.1.2.2.1juniIsisSysL1CircAuthenticationEntryJuniper-ISIS-MIB
1.3.6.1.4.1.4874.2.2.38.1.2.2.1.5juniIsisSysL1CircAuthenticationKeyTypeJuniper-ISIS-MIB