IPV6-UDP-MIB

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Organization: IETF IPv6 MIB Working Group

Last Updated: 2017-02-22

Category: IP and Core Protocols

Description: Defines managed objects for entities implementing UDP over IPv6, providing UDP endpoint and statistics information for IPv6 networks.

IPNetwork Monitor uses several OIDs from this MIB in network discovery and polling the applicable devices. Start monitoring IPV6-UDP-MIB with a free 30-day trial of IPNetwork Monitor.

What Is IPV6-UDP-MIB?

IPV6-UDP-MIB is a vendor-neutral IETF standards MIB defining managed objects for monitoring UDP endpoints and statistics on devices implementing UDP over IPv6. It belongs to the core network transport-protocol monitoring category, alongside its IPv4 UDP-MIB counterpart. It exposes a listener table showing active UDP endpoints bound over IPv6, including local address, local port, and the interface on which each listener resides. Its monitoring value is primarily software/protocol-level - confirming which UDP services are actively listening on which IPv6 addresses/ports/interfaces on a host, useful for verifying a service (e.g., DNS, SNMP itself, or an application daemon) is correctly bound and reachable over IPv6, and spotting unexpected or missing listeners. It depends on the INET-ADDRESS-MIB and IPV6-TC textual conventions for representing IPv6 addresses, and is deployed on any IPv6-enabled host, server, or network device running UDP-based services. Engineers implementing or auditing this functionality typically reference the IPV6-UDP-MIB RFC/standard documentation for the authoritative specification.

IPNetwork Monitor allows you to monitor SNMP objects defined in IPV6-UDP-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

vendor-neutral, standards-based MIB, not tied to a specific manufacturer
any IPv6-enabled server, host, or network device

Monitoring Examples

An administrator can poll ipv6UdpTable/ipv6UdpEntry to enumerate active listeners, reading ipv6UdpLocalAddress and ipv6UdpLocalPort to confirm a critical service (such as DNS on port 53) is actually bound and listening over IPv6, and ipv6UdpIfIndex to identify which interface it's bound to. The absence of an expected entry in the table, or one bound to the wrong ipv6UdpLocalAddress, would reveal a service that failed to start or was misconfigured to listen only on IPv4.

What Can Be Monitored

active UDP listener local address
active UDP listener local port
UDP listener interface index

Imported Objects

From IPV6-TC

Ipv6Address
Ipv6IfIndexOrZero

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE
experimental
mib-2

OIDs

OID symbolic	OID numeric	Type	Access	Description
udp	1.3.6.1.2.1.7
ipv6UdpTable	1.3.6.1.2.1.7.6		not-accessible	A table containing UDP listener information for UDP/IPv6 endpoints. This table is obsoleted by UDP-MIB::udpEndpointTable.
ipv6UdpEntry	1.3.6.1.2.1.7.6.1		not-accessible	Information about a particular current UDP listener. Note that conceptual rows in this table require an additional index object compared to udpTable, since IPv6 addresses are not guaranteed to be unique on the managed node. This entry is obsoleted by UDP-MIB::udpEndpointTable.
ADR ipv6UdpLocalAddress	1.3.6.1.2.1.7.6.1.1	Ipv6Address	not-accessible	The local IPv6 address for this UDP listener. In the case of a UDP listener which is willing to accept datagrams for any IPv6 address associated with the managed node, the value ::0 is used. This object is obsoleted by UDP-MIB::udpEndpointLocalAddress.
INT ipv6UdpLocalPort	1.3.6.1.2.1.7.6.1.2	INTEGER	not-accessible	The local port number for this UDP listener. This object is obsoleted by UDP-MIB::udpEndpointLocalPort.
IPV ipv6UdpIfIndex	1.3.6.1.2.1.7.6.1.3	Ipv6IfIndexOrZero	read-only	An index object used to disambiguate conceptual rows in the table, since the ipv6UdpLocalAddress/ipv6UdpLocalPort pair may not be unique. This object identifies the local interface that is associated with ipv6UdpLocalAddress for this UDP listener. If such a local interface cannot be determined, this object should take on the value 0. (A possible example of this would be if the value of ipv6UdpLocalAddress is ::0.) The interface identified by a particular non-0 value of this index is the same interface as identified by the same value of ipv6IfIndex. The value of this object must remain constant during the life of this UDP endpoint. This object is obsoleted by the zone identifier in an InetAddressIPv6z address in UDP-MIB::udpEndpointLocalAddress.
ipv6UdpMIB	1.3.6.1.3.87			The obsolete MIB module for entities implementing UDP over IPv6. Use the UDP-MIB instead. Copyright (c) 2017 IETF Trust and the persons identified as authors of the code. All rights reserved. Redistribution and use in source and binary forms, with or without modification, is permitted pursuant to, and subject to the license terms contained in, the Simplified BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info).
ipv6UdpConformance	1.3.6.1.3.87.2
ipv6UdpCompliances	1.3.6.1.3.87.2.1
ipv6UdpCompliance	1.3.6.1.3.87.2.1.1			The compliance statement for SNMPv2 entities which implement UDP over IPv6. This object is obsoleted by UDP-MIB::udpMIBCompliance2.
ipv6UdpGroups	1.3.6.1.3.87.2.2
ipv6UdpGroup	1.3.6.1.3.87.2.2.1			The group of objects providing management of UDP over IPv6. This group is obsoleted by several groups in UDP-MIB.

RFC description

Obsolete MIB defining UDP listener information for IPv6 endpoints; replaced by the revised UDP-MIB (RFC 4113).

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Download IPV6-UDP-MIB

What Is IPV6-UDP-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description