CM-IP-MIB :: ipLoopbackInterfaceIpv6AddrPrefixLen

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCM-IP-MIBipLoopbackInterfaceIpv6AddrPrefixLen

ipLoopbackInterfaceIpv6AddrPrefixLen

Module: CM-IP-MIB

OID (symbolic): CM-IP-MIB::ipLoopbackInterfaceIpv6AddrPrefixLen

OID (numeric): 1.3.6.1.4.1.2544.1.12.11.1.11.1.9

Node type: OBJECT-TYPE

Type: Integer32

Access: read-write

Description: This object means the ipv6 address prefix length for the interface.

What is ipLoopbackInterfaceIpv6AddrPrefixLen?

This read-write object sets the prefix length for the loopback interface's IPv6 address, per its description. Admins typically set this to a /128 host prefix since a loopback interface represents a single address rather than a subnet. For example, when assigning an IPv6 router ID to this loopback, an admin would set this prefix length to 128 to represent a single-host address.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.11.1.11.1.9
snmpwalk -v2c -c public <target> CM-IP-MIB::ipLoopbackInterfaceIpv6AddrPrefixLen

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.11.1.11.1.9.1
snmpget -v2c -c public <target> CM-IP-MIB::ipLoopbackInterfaceIpv6AddrPrefixLen.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.2544.1.12.11.1.11.1.9.1 i <value>

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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
1.3.6.1.4.1.2544advaMIBADVA-MIB
1.3.6.1.4.1.2544.1productsADVA-MIB
1.3.6.1.4.1.2544.1.12fsp150cmADVA-MIB
Numeric OIDNameModule
1.3.6.1.4.1.2544.1.12.11cmIPMIBCM-IP-MIB
1.3.6.1.4.1.2544.1.12.11.1cmIpObjectsCM-IP-MIB
1.3.6.1.4.1.2544.1.12.11.1.11ipLoopbackInterfaceTableCM-IP-MIB
1.3.6.1.4.1.2544.1.12.11.1.11.1ipLoopbackInterfaceEntryCM-IP-MIB
1.3.6.1.4.1.2544.1.12.11.1.11.1.9ipLoopbackInterfaceIpv6AddrPrefixLenCM-IP-MIB