JUNIPER-JDHCP-MIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › JUNIPER-JDHCP-MIB

Organization: Juniper Networks, Inc.

Last Updated: 2015-03-03

Category: Protocol: DHCP, Vendor: Juniper

Description: Provides managed objects for the Juniper Networks JDHCP local DHCP server, supporting pool allocation and lease management.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is JUNIPER-JDHCP-MIB?

JUNIPER-JDHCP-MIB is a Juniper Networks enterprise MIB for the JDHCP local DHCP server component of JUNOS, the operating system running on Juniper routers and switches. It exposes counters and objects related to local DHCP server operation and DHCP relay behavior, focusing on address pool allocation, lease handling, and packet-level error/drop conditions. It is primarily a fault and performance monitoring module: rather than exposing hardware sensors, it tracks software-level health of the DHCP service by counting dropped requests due to bad hardware addresses, malformed BOOTP opcodes, bad options, missing addresses, or missing routing instances, letting an operator infer service degradation or misconfiguration. As a Juniper enterprise MIB it typically complements the standard IETF DHCP-related MIBs and Juniper's own interface and chassis MIBs rather than replacing them. It is deployed on Juniper routers, switches, and security appliances running JUNOS that are configured as local DHCP servers or DHCP relay agents for subscriber or branch-office address assignment. Network engineers evaluating or troubleshooting this functionality can download the JUNIPER-JDHCP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in JUNIPER-JDHCP-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 router
  • Juniper switch
  • JUNOS-based network device

Monitoring Examples

An administrator would poll jnxJdhcpLocalServerStatistics objects such as jnxJdhcpLocalServerTotalDropped alongside the more specific drop counters like jnxJdhcpLocalServerBadHardwareDropped, jnxJdhcpLocalServerNoAddressDropped, and jnxJdhcpLocalServerNoRoutingInstanceDropped. A steady rise in jnxJdhcpLocalServerNoAddressDropped would reveal that the configured address pool is exhausted, while growth in jnxJdhcpLocalServerBadOptionsDropped could indicate misbehaving client devices sending malformed DHCP option fields. jnxJdhcpRelayObjects would be checked in parallel when the router is acting as a relay rather than a full local server.

What Can Be Monitored

  • total dropped DHCP requests
  • drops due to bad hardware address
  • drops due to bad BOOTP opcode
  • drops due to bad DHCP options
  • drops due to address pool exhaustion
  • drops due to missing routing instance
Imported Objects

From IF-MIB

InterfaceIndex
ifIndexOBJECT-TYPE

From JUNIPER-SMI

jnxJdhcpMibRootOBJECT-IDENTITY

From SNMPv2-SMI

Counter32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DateAndTime
DisplayString
MacAddress
TEXTUAL-CONVENTION

How to Use in IPNetwork Monitor

Example using jnxJdhcpLocalServerTotalDropped OID:

Select a Juniper router/switch, JUNO (local DHCP server/relay) 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 jnxJdhcpLocalServerTotalDropped into the Find box to locate it in the OID tree, then select it and click OK. The total number of packets dropped. 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 between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

Monitors DHCP local server and relay statistics on Juniper JUNOS network platforms.

Start monitoring Juniper router/switch, JUNOS (local DHCP server/relay) 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-JDHCP-MIB