MIP-UDPTUNNEL-MIB

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Organization: IETF Mobility for IPv4 Group

Last Updated: 2007-06-12

Category: IETF Standards, Protocol Tunneling

Description: Defines IETF Mobile IPv4 UDP tunnel configuration and encapsulation objects.

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What Is MIP-UDPTUNNEL-MIB?

MIP-UDPTUNNEL-MIB is an IETF standards-track MIB module, part of the Mobile IP NAT-traversal RFC work referenced in its module identity, that defines configuration and status objects for Mobile IPv4 UDP tunneling used to traverse NAT devices. It exposes configuration data for UDP tunnel encapsulation parameters that allow Mobile IP registration and data traffic to pass through NAT boundaries. Its monitoring value is largely operational/software-status oriented, tracking whether UDP tunnels are established and configured correctly rather than physical hardware health. It is closely tied to the broader Mobile IP MIB framework (e.g., a base Mobile IP MIB) since UDP tunneling is an extension mechanism layered on top of standard Mobile IPv4 mobility management. This MIB would be deployed on Mobile IP home agents, foreign agents, or mobile nodes operating behind NAT devices in mobile/wireless carrier or enterprise VPN environments. Engineers implementing or auditing this functionality typically reference the MIP-UDPTUNNEL-MIB RFC/standard documentation for the authoritative specification.

IPNetwork Monitor allows you to monitor SNMP objects defined in MIP-UDPTUNNEL-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
Mobile IP home agents/foreign agents
mobile nodes operating behind NAT devices

Monitoring Examples

No sample object names were supplied for this MIB, so no concrete table/object names can be cited from the source data. In practice, a module like this would expose a per-tunnel configuration and status table keyed by mobile node, which an administrator would poll to confirm a mobile node's UDP tunnel through a NAT is active and using the expected encapsulation, but this cannot be grounded to specific object names here since none were provided.

What Can Be Monitored

UDP tunnel configuration state
tunnel establishment status
NAT traversal encapsulation parameters

Imported Objects

From MIP-MIB

mipMIB

MODULE-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

TruthValue

How to Use in IPNetwork Monitor

Example using haUdpTunnelEncapUnavail OID:

Select a device implementing MIP-UDPTUNNEL-MIB as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type haUdpTunnelEncapUnavail into the Find box to locate it in the OID tree, then select it and click OK. It reports the total number of registration requests denied by the home agent because the requested UDP tunnel encapsulation was unavailable (code 142). On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
mipUdpTunnelMIB	1.3.6.1.2.1.44.4			The MIB module for configuring and displaying Mobile IP Traversal of Network Address Translation (NAT) Devices information. Copyright (C) IETF Trust (2007). This version of this MIB module is part of RFC yyyy; see the RFC itself for full legal notices.
mipUdpTunnelMIBObjects	1.3.6.1.2.1.44.4.1
mnUdpTunnel	1.3.6.1.2.1.44.4.1.1
T/F mnUdpTunnelEnable	1.3.6.1.2.1.44.4.1.1.1	TruthValue	read-write	This parameter enables and disables the RFC 3519 UDP tunneling function in the MN completely.
T/F mnUdpTunnelForce	1.3.6.1.2.1.44.4.1.1.2	TruthValue	read-write	This parameter enables (or disables) the MN to set the F (force) flag. It indicates that the mobile node wants to use traversal regardless of the outcome of NAT detection performed by the home agent.
U32 mnUdpTunnelKeepaliveInterval	1.3.6.1.2.1.44.4.1.1.3	Unsigned32	read-write	Defines the default NAT keepalive interval that the mobile node will use in the case that the HA does not impose another value by setting the Keepalive Interval in the UDP Tunnel Reply Extension.
haUdpTunnel	1.3.6.1.2.1.44.4.1.2
T/F haUdpTunnelEnable	1.3.6.1.2.1.44.4.1.2.1	TruthValue	read-write	This parameter enables and disables the RFC 3519 UDP tunneling function in the HA completely.
U32 haUdpTunnelKeepaliveInterval	1.3.6.1.2.1.44.4.1.2.2	Unsigned32	read-write	This parameter sets the keepalive interval override. Normally, the MN uses the keepalive time that was configured using UDP tunneling and sending keepalive messages. The HA can override this configured keepalive time by setting a new interval value for this parameter to a value other than zero.
T/F haUdpTunnelForce	1.3.6.1.2.1.44.4.1.2.3	TruthValue	read-write	This parameter enables and disables the HA forcing all connections from MNs which support RFC 3519 UDP tunneling to use tunneling whether or not the presence of a NAT is detected.
C32 haUdpTunnelEncapUnavailEx	1.3.6.1.2.1.44.4.1.2.4	Counter32	read-only	Total number of Registration Requests denied by the home agent -- Requested UDP tunnel encapsulation unavailable (code 142).
faUdpTunnel	1.3.6.1.2.1.44.4.1.3
T/F faUdpTunnelEnable	1.3.6.1.2.1.44.4.1.3.1	TruthValue	read-write	This parameter enables and disables the RFC 3519 UDP tunneling function in the FA completely.
T/F faUdpTunnelForce	1.3.6.1.2.1.44.4.1.3.2	TruthValue	read-write	This parameter enables (or disables) the FA to set the F (force) flag. It indicates that the foreign agent wants to use traversal regardless of the outcome of NAT detection performed by the home agent.
U32 faUdpTunnelKeepaliveInterval	1.3.6.1.2.1.44.4.1.3.3	Unsigned32	read-write	Defines the default NAT keepalive interval that the foreign agent will use in the case that the HA does not impose another value by setting the Keepalive Interval in the UDP Tunnel Reply Extension.
mipUdpTunnelConformance	1.3.6.1.2.1.44.4.2
mipUdpTunnelGroups	1.3.6.1.2.1.44.4.2.1
mnUdpTunnelGroup	1.3.6.1.2.1.44.4.2.1.1			A collection of objects providing management information for theuse of UDP tunneling according to RFC3519 within a mobile node.
haUdpTunnelGroup	1.3.6.1.2.1.44.4.2.1.2			A collection of objects providing management information for theuse of UDP tunneling according to RFC3519 within a home agent.
faUdpTunnelGroup	1.3.6.1.2.1.44.4.2.1.3			A collection of objects providing management information for theuse of UDP tunneling according to RFC3519 within a foreign agent.
mipUdpTunnelCompliances	1.3.6.1.2.1.44.4.2.2
mipUdpTunnelCompliance	1.3.6.1.2.1.44.4.2.2.1			The compliance statement for SNMPv2 entities which implement the Mobile IP UDP Tunnel MIB.

RFC description

Mobile IP UDP tunnel configuration for NAT traversal in mobile networks (RFC3519).

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