IPV6-ICMP-MIB :: ipv6IfIcmpOutAdminProhibs

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › IPV6-ICMP-MIB › ipv6IfIcmpOutAdminProhibs

ipv6IfIcmpOutAdminProhibs

Module: IPV6-ICMP-MIB

OID (symbolic): IPV6-ICMP-MIB::ipv6IfIcmpOutAdminProhibs

OID (numeric): 1.3.6.1.2.1.56.1.1.1.21

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: Number of ICMP dest unreachable/communication administratively prohibited messages sent.

This object has been obsoleted by IP-MIB::icmpMsgStatsOutPkts in the row corresponding to this message type.

What is ipv6IfIcmpOutAdminProhibs?

Counts ICMPv6 destination-unreachable/administratively-prohibited messages sent by this interface, meaning a local policy (such as an ACL) is actively blocking and rejecting traffic. Obsoleted by IP-MIB::icmpMsgStatsOutPkts, but a rising count is a direct sign that this device's own filtering rules are dropping and notifying senders.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.56.1.1.1.21
snmpwalk -v2c -c public <target> IPV6-ICMP-MIB::ipv6IfIcmpOutAdminProhibs

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.56.1.1.1.21.1
snmpget -v2c -c public <target> IPV6-ICMP-MIB::ipv6IfIcmpOutAdminProhibs.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> ipv6IfIcmpOutAdminProhibs.1

Start monitoring Vendor-neutral IETF standard, RFC 2466, obsolete (any IPv6-capable device) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the IPV6-ICMP-MIB::ipv6IfIcmpOutAdminProhibs OID value, configure state conditions and alerts, and monitor any Vendor-neutral IETF standard, RFC 2466, obsolete (any IPv6-capable device) from a single console.

OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.2mgmtAPERTUS-NPG-MIB
1.3.6.1.2.1mib_2AXON-MIB
Numeric OIDNameModule
1.3.6.1.2.1.56ipv6IcmpMIBIPV6-ICMP-MIB
1.3.6.1.2.1.56.1ipv6IcmpMIBObjectsIPV6-ICMP-MIB
1.3.6.1.2.1.56.1.1ipv6IfIcmpTableIPV6-ICMP-MIB
1.3.6.1.2.1.56.1.1.1ipv6IfIcmpEntryIPV6-ICMP-MIB
1.3.6.1.2.1.56.1.1.1.21ipv6IfIcmpOutAdminProhibsIPV6-ICMP-MIB