Juniper-L2TP-Dialout-MIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Juniper-L2TP-Dialout-MIB

Organization: Juniper Networks, Inc.

Last Updated: 2002-11-14

Category: Protocol: L2TP, Vendor: Juniper

Description: Defines managed objects for L2TP dialout call generation and session management on Juniper Networks E-series broadband routers.

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What Is Juniper-L2TP-Dialout-MIB?

Juniper-L2TP-Dialout-MIB is a Juniper Networks enterprise MIB that manages Layer 2 Tunneling Protocol (L2TP) dialout call generation on E-series broadband routers, used when the router itself initiates tunneled PPP sessions toward a target LNS. It exposes configuration data (target IP addresses, domain names, associated profiles) and status/timer information for outbound dialout attempts. Monitoring-wise, it lets an operator track the software-driven state of dialout targets via the juniL2tpDialoutTargetStatusTable and the connecting/dormant timer values, revealing whether dialout sessions are being established, retried, or stuck, which is a useful proxy for L2TP service health on the device. It works alongside standard L2TP MIB concepts and Juniper's broader PPP and profile MIBs since dialout sessions ultimately establish PPP connections. It is typically deployed on broadband aggregation routers providing dial backup or on-demand tunneling to remote access servers. Engineers can download the Juniper-L2TP-Dialout-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Juniper-L2TP-Dialout-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

  • Juniper Networks E-series broadband routers

Monitoring Examples

An operator would poll juniL2tpDialoutTargetStatusTable to see the current connection state of each configured juniL2tpDialoutTargetConfigEntry, cross-referencing juniL2tpDialoutTargetIpAddress and juniL2tpDialoutTargetDomainName to identify which remote LNS a dialout target points to. If juniL2tpDialoutConnectingTimerValue or juniL2tpDialoutDormantTimerValue values show a target stuck in a connecting or dormant state longer than expected, that flags a tunnel establishment problem. juniL2tpDialoutTargetRowStatus would also be checked to confirm a target is administratively active before troubleshooting further.

What Can Be Monitored

  • L2TP dialout target status
  • connecting/dormant timer values
  • target IP address and mask
  • target domain name
  • associated profile name
  • row (admin) status of dialout targets
Imported Objects

From Juniper-MIBs

juniMibsMODULE-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Gauge32
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
RowStatus
TEXTUAL-CONVENTION

How to Use in IPNetwork Monitor

Example using juniL2tpDialoutTargetsCreated OID:

Select a Juniper Networks E-series broadband router (L2TP dialout call generation) 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 juniL2tpDialoutTargetsCreated into the Find box to locate it in the OID tree, then select it and click OK. The number of targets created. 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

RFC description

Juniper Networks Layer 2 Tunneling Protocol (L2TP) Dialout MIB; manages L2TP tunnel creation and dialout parameters for Juniper access servers.

Start monitoring Juniper Networks E-series broadband router (L2TP dialout call generation) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download Juniper-L2TP-Dialout-MIB