DISMAN-NSLOOKUP-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DISMAN-NSLOOKUP-MIB

Organization: IETF Distributed Management Working Group

Last Updated: 2006-06-13

Category: SNMP Framework

Description: Defines objects for performing remote DNS lookups via SNMP.

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

What Is DISMAN-NSLOOKUP-MIB?

DISMAN-NSLOOKUP-MIB is an IETF Distributed Management (DISMAN) standards-track MIB, published as RFC 4560, that lets an SNMP manager remotely trigger a DNS name-to-address or address-to-name lookup performed by the agent itself. It exposes control objects for specifying and initiating a lookup and result objects returning the resolved name(s) or address(es), rather than hardware telemetry. Its use for monitoring device status is indirect: it lets an operator confirm the health of a device's DNS resolver and network connectivity by observing whether lookups it performs succeed and return correct results, functioning as a diagnostic/software-status check rather than a hardware sensor feed. It belongs to the broader DISMAN family of MIBs (alongside the Ping and Script MIBs) and depends on standard SNMPv2-SMI/TC conventions for its structure. It is typically deployed on routers, firewalls, or other network devices that support delegated DNS diagnostics so operators can test DNS resolution from the device's own vantage point without a shell session. Engineers implementing or auditing this functionality typically reference the DISMAN-NSLOOKUP-MIB RFC/standard documentation for the authoritative specification.

IPNetwork Monitor allows you to monitor SNMP objects defined in DISMAN-NSLOOKUP-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
  • routers and other network devices with DISMAN agent support

Monitoring Examples

No sample_objects were provided for this module, so a concrete object-level scenario can't be grounded in real names; per RFC 4560's design, an operator would configure a control table entry naming a target hostname or IP address to resolve, trigger the lookup, and then read a corresponding results table to see the returned addresses/names, which is useful for confirming DNS resolution is working correctly from the agent's location.

What Can Be Monitored

  • DNS lookup control status
  • resolved hostnames/addresses
  • lookup success/failure
Imported Objects

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32
mib-2

From SNMPv2-TC

RowStatus
OIDs

RFC description

Enables remote DNS name-to-address and address-to-name lookups on remote hosts for distributed network management operations.

Start monitoring Router/network device with DISMAN agent support (vendor-neutral, remote DNS lookup) 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 DISMAN-NSLOOKUP-MIB