ZHONE-COM-IP-DNS-RESOLVER-MIB

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Organization: Zhone Technologies, Inc.

Last Updated: 2000-09-29

Category: Zhone Technologies CPE and Access

Description: Manages Zhone Technologies DNS resolver configuration, server addresses, and name resolution statistics.

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What Is ZHONE-COM-IP-DNS-RESOLVER-MIB?

ZHONE-COM-IP-DNS-RESOLVER-MIB is a vendor MIB from Zhone Technologies (IP Software division) covering the DNS resolver client function embedded in its network equipment. It is expected to expose configuration for DNS server addresses/order used for name resolution, along with resolver statistics such as query counts, successes, failures, or timeouts. Its monitoring value is a software/service-health indicator: confirming the device's DNS resolver is configured with reachable servers and successfully resolving names, with rising failure/timeout counters signaling a DNS outage or misconfiguration affecting dependent services on the device. It is a self-contained resolver MIB with conceptual reliance on standard DNS protocol behavior but no apparent dependency on other SNMP MIBs. It is typically deployed on Zhone broadband access/CPE equipment where the device itself performs DNS lookups for management or service functions. Engineers can download the ZHONE-COM-IP-DNS-RESOLVER-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in ZHONE-COM-IP-DNS-RESOLVER-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

Zhone Technologies broadband access/CPE device

Monitoring Examples

No sample objects were available in the source data for this MIB, so a grounded polling example naming real objects cannot be constructed here; based on the module's stated purpose, a realistic use would involve polling configured DNS server address objects and resolver query success/failure counters to detect a DNS server becoming unreachable, but the exact object names cannot be confirmed from this source.

What Can Be Monitored

configured DNS server addresses
DNS query success/failure counts
resolver timeout events

Imported Objects

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-SMI

IpAddress
MODULE-IDENTITY
OBJECT-IDENTITY
OBJECT-TYPE

From Zhone

zhoneIp	OBJECT-IDENTITY
zhoneModules	OBJECT-IDENTITY

From ZHONE-COM-IP-RD-MIB

rdEntry	OBJECT-TYPE
rdIndex	OBJECT-TYPE

From Zhone-TC

ZhoneAdminString
ZhoneRowStatus

OIDs

OID symbolic	OID numeric	Type	Access	Description
dnsResolver	1.3.6.1.4.1.5504.4.1.12			DNS Resolver objects based on RFC 1612.
STR zhDnsResConfigImplementIdent	1.3.6.1.4.1.5504.4.1.12.1	ZhoneAdminString	read-only	The implementation identification string for the resolver software in use on the system, for example; `RES-2.1'. The maximum length for this name is 32 characters.
zhDnsResConfigTable	1.3.6.1.4.1.5504.4.1.12.2		not-accessible	Table of nameservers information used by the resolver to send a query. Rows are created and destroyed whenever a routing domain is created or destroyed. Rows cannot be created or destroyed via SNMP.
zhDnsResConfigEntry	1.3.6.1.4.1.5504.4.1.12.2.1		not-accessible	A single routing domain in a single subnet.
INT zhDnsResConfigQueryOrder	1.3.6.1.4.1.5504.4.1.12.2.1.1	INTEGER	read-write	Kind of resolver query for this routing domain: hostsFirst(1) searches the local hosts table first, then the list of nameservers dnsFirst(2) searches the list of nameservers first, then the local hosts table dnsOnly(3) searches only the list of nameservers
STR zhDnsResConfigDomainName	1.3.6.1.4.1.5504.4.1.12.2.1.2	SnmpAdminString	read-write	Domain name to use for searches in this routing domain. The maximum length for this name is 255 characters.
IP zhDnsResConfigFirstNameServer	1.3.6.1.4.1.5504.4.1.12.2.1.3	IpAddress	read-write	The IP address of the first/primary name server for this routing domain.
IP zhDnsResConfigSecondNameServer	1.3.6.1.4.1.5504.4.1.12.2.1.4	IpAddress	read-write	The IP address of the secondary name server for this routing domain. This nameserver is queried if the first nameserver cannot resolve the query. If a secondary name server has not been defined, this field is set to 0.0.0.0
IP zhDnsResConfigThirdNameServer	1.3.6.1.4.1.5504.4.1.12.2.1.5	IpAddress	read-write	The IP address of the third name server for this routing domain. This nameserver is queried if the first nameserver and the secondary nameserver cannot resolve the query. If a third name server has not been defined, this field is set to 0.0.0.0
zhDnsResHostsTable	1.3.6.1.4.1.5504.4.1.12.3		not-accessible	This is the local hosts table (ie. /etc/hosts) for each routing domain.
zhDnsResHostsEntry	1.3.6.1.4.1.5504.4.1.12.3.1		not-accessible	A particular host entry per routing domain. Rows are created and destroyed whenever a hostname within a routing domain is created and destroyed, ie. rows are added by setting zhDnsResHostsRowStatus to createAndGo. Rows are removed by setting zhDnsResHostsRowStatus to destroy. The minimum columns required to create new entry are zhDnsResHostsIpAddress and zhDnsResHostsName.
IP zhDnsResHostsIpAddress	1.3.6.1.4.1.5504.4.1.12.3.1.1	IpAddress	not-accessible	The IP address of this entry. 127.1 (127.0.0.1) is a valid ip address.
STR zhDnsResHostsName	1.3.6.1.4.1.5504.4.1.12.3.1.2	SnmpAdminString	read-create	Hostname for this entry. The hostname can be either fully-qualified or hostname only. The maximum length for this name is 255 characters.
STR zhDnsResHostsAlias1	1.3.6.1.4.1.5504.4.1.12.3.1.3	SnmpAdminString	read-create	Hostname alias for this entry. The hostname can be either fully-qualified or hostname only. The maximum length for this name is 255 characters.
STR zhDnsResHostsAlias2	1.3.6.1.4.1.5504.4.1.12.3.1.4	SnmpAdminString	read-create	Another hostname alias for this entry. The hostname can be either fully-qualified or hostname only. The maximum length for this name is 255 characters.
STR zhDnsResHostsAlias3	1.3.6.1.4.1.5504.4.1.12.3.1.5	SnmpAdminString	read-create	Another hostname alias for this entry. The hostname can be either fully-qualified or hostname only. The maximum length for this name is 255 characters.
STR zhDnsResHostsAlias4	1.3.6.1.4.1.5504.4.1.12.3.1.6	SnmpAdminString	read-create	Another hostname alias for this entry. The hostname can be either fully-qualified or hostname only. The maximum length for this name is 255 characters.
ZHO zhDnsResHostsRowStatus	1.3.6.1.4.1.5504.4.1.12.3.1.7	ZhoneRowStatus	read-create	The row status variable, used according to row installation and removal conventions.
comIpDnsResolver	1.3.6.1.4.1.5504.6.62			DNS Resolver MIB IP Software Minneapolis, MN

RFC description

DNS resolver configuration and management for IP services. Manages resolver hosts table and DNS client settings.

Start monitoring Zhone Technologies broadband access/CPE device (DNS-resolver query/failure-count 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.

Download ZHONE-COM-IP-DNS-RESOLVER-MIB

What Is ZHONE-COM-IP-DNS-RESOLVER-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description