CISCOSB-DNSCL-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsCISCOSB-DNSCL-MIB

Organization: Cisco Small Business

Last Updated: 2013-04-01

Category: IP and Core Protocols, Vendor: RADLAN/Cisco SB

Description: Manages Cisco Small Business DNS client configuration including server addresses and domain search lists.

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 CISCOSB-DNSCL-MIB?

CISCOSB-DNSCL-MIB is a Cisco Small Business private MIB that manages the DNS client configuration on the device, covering domain-name search lists and configured DNS server addresses per interface. It falls into the configuration/networking-services category, letting administrators view and set the domain suffixes and resolver addresses the device uses for name lookups. Rather than hardware health, its monitoring value is software/service status: confirming which DNS servers and domain names are active, their configured preference/priority, and how each entry was learned (statically configured versus DHCP-derived), which helps diagnose name-resolution failures. It is a self-contained CISCOSB private-tree MIB with no notable dependency on other standard MIBs beyond common SNMPv2 textual conventions. It is deployed on small-business switches and routers where DNS client behavior needs to be centrally verified or troubleshot via SNMP. Engineers can download the CISCOSB-DNSCL-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCOSB-DNSCL-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

  • Cisco Small Business switches and routers

Monitoring Examples

An administrator would poll rlDnsClv2ServersTable/rlDnsClv2ServersEntry to see the currently configured rlDnsClv2ServersSource (static vs. dynamic) and preference ranking of each DNS server per rlDnsClv2ServersIfIndex, revealing whether a stale or unreachable DNS server is still ranked first. Checking rlDnsClv2DomainNameTable's rlDnsClv2DomainNameName and rlDnsClv2DomainNamePreference confirms which domain suffix is being appended to unqualified hostnames. If devices report DNS resolution failures, comparing rlDnsClv2DomainNameRowStatus and server preference values often reveals a misconfigured or duplicate entry.

What Can Be Monitored

  • configured DNS server addresses
  • DNS server preference/priority
  • DNS server source (static/dynamic)
  • domain name search list
  • domain name entry status
Imported Objects

From CISCOSB-MIB

switch001MODULE-IDENTITY

From DNS-RESOLVER-MIB

dnsResConfigSbeltEntryOBJECT-TYPE

From DNS-SERVER-MIB

DnsClass
DnsName
DnsNameAsIndex
DnsOpCode
DnsQClass
DnsQType
DnsRespCode
DnsTime
DnsType
dnsOBJECT-IDENTITY

From IF-MIB

InterfaceIndex
ifIndexOBJECT-TYPE

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From SNMPv2-SMI

Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
RowStatus
TEXTUAL-CONVENTION
TruthValue
OIDs

RFC description

Cisco Small Business MIB for managing DNS client configuration and functionality on Cisco SB network devices.

Start monitoring Cisco Small Business switches and routers 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 CISCOSB-DNSCL-MIB