ENTERASYS-DNS-RESOLVER-MIB

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Organization: Enterasys Networks, Inc.

Last Updated: 2008-08-11

Category: Vendor: Enterasys/Cabletron

Description: Enterasys Networks MIB for configuring DNS resolver settings including server addresses and query timeouts.

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What Is ENTERASYS-DNS-RESOLVER-MIB?

ENTERASYS-DNS-RESOLVER-MIB is a proprietary Enterasys Networks MIB for configuring the DNS resolver settings used by the device itself, including domain name and up to four DNS server addresses across IPv4 and IPv6. It exposes purely configuration-oriented objects rather than runtime traffic or hardware data. Its monitoring usefulness is limited to configuration verification: an administrator can confirm the device's configured primary, secondary, tertiary, and quaternary DNS servers and domain name are correct, which matters for troubleshooting name-resolution failures affecting other device services (e.g., NTP, syslog, RADIUS by hostname) rather than for tracking hardware or performance health. It is a vendor-specific configuration MIB with no dependency on a standard DNS-client MIB. It is deployed on Enterasys/Extreme Networks switches and routers that resolve hostnames for management or logging purposes, and administrators can download the ENTERASYS-DNS-RESOLVER-MIB file to load into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in ENTERASYS-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

Enterasys/Extreme Networks switch or router

Monitoring Examples

An administrator troubleshooting a device that cannot reach a syslog or RADIUS server by hostname would poll etsysDnsResolverPrimaryServerAddrType/etsysDnsResolverPrimaryServerAddr and the secondary/tertiary/quaternary equivalents to confirm the correct DNS servers are configured, and check etsysDnsResolverDomainName to verify the search domain matches expectations. etsysDnsResolverIpv4DnsZone and etsysDnsResolverIpv6DnsZone would be checked when diagnosing dual-stack resolution issues. This MIB is a static configuration table with no live query-performance counters.

What Can Be Monitored

configured DNS server addresses (primary through quaternary)
domain name
IPv4/IPv6 DNS zone configuration

Imported Objects

From ENTERASYS-MIB-NAMES

etsysModules

OBJECT-IDENTITY

From INET-ADDRESS-MIB

InetAddress
InetAddressType
InetPortNumber

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

OIDs

OID symbolic	OID numeric	Type	Access	Description
etsysDnsResolverMIB	1.3.6.1.4.1.5624.1.2.63			This MIB module defines a portion of the SNMP MIB under the Enterasys Networks enterprise OID pertaining to configuration of the DNS resolution mechanisms on a device.
etsysDnsResolverObjects	1.3.6.1.4.1.5624.1.2.63.1
etsysDnsResolverSystem	1.3.6.1.4.1.5624.1.2.63.1.1
INT etsysDnsResolverServiceType	1.3.6.1.4.1.5624.1.2.63.1.1.1	INTEGER	read-only	The type of DNS resolution service provided: recursiveOnly(1) indicates a stub resolver. iterativeOnly(2) indicates a normal full service resolver. recursiveAndIterative(3) indicates a full-service resolver which performs a mix of recursive and iterative queries.
STR etsysDnsResolverDomainName	1.3.6.1.4.1.5624.1.2.63.1.1.2	SnmpAdminString	read-write	The DNS domain name where the device is located. If this object is not set, then all address lookups must provide fully qualified domains.
IPt etsysDnsResolverPrimaryServerAddrType	1.3.6.1.4.1.5624.1.2.63.1.1.3	InetAddressType	read-write	The type of data returned by etsysDnsResolverPrimaryServerAddr.
IP etsysDnsResolverPrimaryServerAddr	1.3.6.1.4.1.5624.1.2.63.1.1.4	InetAddress	read-write	The network address of the primary name server.
IPt etsysDnsResolverSecondaryServerAddrType	1.3.6.1.4.1.5624.1.2.63.1.1.5	InetAddressType	read-write	The type of data returned by etsysDnsResolverSecondaryServerAddr.
IP etsysDnsResolverSecondaryServerAddr	1.3.6.1.4.1.5624.1.2.63.1.1.6	InetAddress	read-write	The network address of the secondary name server.
IPt etsysDnsResolverTertiaryServerAddrType	1.3.6.1.4.1.5624.1.2.63.1.1.7	InetAddressType	read-write	The type of data returned by etsysDnsResolverTertiaryServerAddr.
IP etsysDnsResolverTertiaryServerAddr	1.3.6.1.4.1.5624.1.2.63.1.1.8	InetAddress	read-write	The network address of the tertiary name server.
IPt etsysDnsResolverQuaternaryServerAddrType	1.3.6.1.4.1.5624.1.2.63.1.1.9	InetAddressType	read-write	The type of data returned by etsysDnsResolverQuaternaryServerAddr.
IP etsysDnsResolverQuaternaryServerAddr	1.3.6.1.4.1.5624.1.2.63.1.1.10	InetAddress	read-write	The network address of the quaternary name server.
STR etsysDnsResolverIpv4DnsZone	1.3.6.1.4.1.5624.1.2.63.1.1.11	SnmpAdminString	read-write	The DNS zone to use for address to name lookups of IPv4 addresses.
STR etsysDnsResolverIpv6DnsZone	1.3.6.1.4.1.5624.1.2.63.1.1.12	SnmpAdminString	read-write	The DNS zone to use for address to name lookups of IPv6 addresses.
INE etsysDnsResolverServerPortNumber	1.3.6.1.4.1.5624.1.2.63.1.1.13	InetPortNumber	read-write	The port number (0-65535) the resolver uses for DNS queries.
U32 etsysDnsResolverQueryTimeout	1.3.6.1.4.1.5624.1.2.63.1.1.14	Unsigned32	read-write	The number of seconds before a DNS request is retried if the DNS server fails to respond.
U32 etsysDnsResolverQueryRetries	1.3.6.1.4.1.5624.1.2.63.1.1.15	Unsigned32	read-write	The number of times to retry a lookup request to a DNS server that has not successfully responded. This retry count is per name server, so each configured name server will make etsysDnsResolverQueryRetries attempts before giving up and moving to the next configured server.
INT etsysDnsResolverEnableStatus	1.3.6.1.4.1.5624.1.2.63.1.1.16	INTEGER	read-write	The status of the DNS resolver on this device.
etsysDnsResolverConformance	1.3.6.1.4.1.5624.1.2.63.2
etsysDnsResolverGroups	1.3.6.1.4.1.5624.1.2.63.2.1
etsysDnsResolverPrimaryGroup	1.3.6.1.4.1.5624.1.2.63.2.1.1			The group for all devices supporting DNS resolution.
etsysDnsResolverSecondaryGroup	1.3.6.1.4.1.5624.1.2.63.2.1.2			The group for all devices that support two or more servers for DNS resolution.
etsysDnsResolverTertiaryGroup	1.3.6.1.4.1.5624.1.2.63.2.1.3			The group for all devices that support three or more servers for DNS resolution.
etsysDnsResolverQuaternaryGroup	1.3.6.1.4.1.5624.1.2.63.2.1.4			The group for all devices that support four servers for DNS resolution.
etsysDnsResolverCompliances	1.3.6.1.4.1.5624.1.2.63.2.2
etsysDnsResolverCompliance	1.3.6.1.4.1.5624.1.2.63.2.2.1			The compliance statement for devices that support DNS resolution.

RFC description

Manages DNS resolver configuration including query timeouts and server addresses on Enterasys devices.

Start monitoring Enterasys Networks switch (legacy, later Extreme Networks)/router (DNS resolver config) 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 ENTERASYS-DNS-RESOLVER-MIB

What Is ENTERASYS-DNS-RESOLVER-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description