CM-SECURITY-MIB :: icmpV6DropNeighborAdvertisement

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCM-SECURITY-MIBicmpV6DropNeighborAdvertisement

icmpV6DropNeighborAdvertisement

Module: CM-SECURITY-MIB

OID (symbolic): CM-SECURITY-MIB::icmpV6DropNeighborAdvertisement

OID (numeric): 1.3.6.1.4.1.2544.1.12.10.1.21.5

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: This object is used to enable/disable Dropping Neighbor Advertisement.

What is icmpV6DropNeighborAdvertisement?

This read-write enabled/disabled INTEGER controls whether the device drops incoming IPv6 Neighbor Advertisement messages. An admin enables this as a defense against IPv6 neighbor spoofing, where a rogue host advertises a false MAC-to-address binding. For example, enabling this drop on an untrusted-facing port helps mitigate IPv6 neighbor cache poisoning attempts from that segment.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.10.1.21.5
snmpwalk -v2c -c public <target> CM-SECURITY-MIB::icmpV6DropNeighborAdvertisement

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.2544.1.12.10.1.21.5.1
snmpget -v2c -c public <target> CM-SECURITY-MIB::icmpV6DropNeighborAdvertisement.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.2544.1.12.10.1.21.5.1 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
1.3.6.1.4.1.2544.1.12.10cmSecurityMIBCM-SECURITY-MIB
1.3.6.1.4.1.2544.1.12.10.1cmSecurityObjectsCM-SECURITY-MIB
1.3.6.1.4.1.2544.1.12.10.1.21cmIcmpV6ObjectsCM-SECURITY-MIB
1.3.6.1.4.1.2544.1.12.10.1.21.5icmpV6DropNeighborAdvertisementCM-SECURITY-MIB