All MIBs › CISCOSB-DNSCL-MIB › rlDnsResNCacheErrInetSource
rlDnsResNCacheErrInetSource
Module: CISCOSB-DNSCL-MIB
OID (symbolic): CISCOSB-DNSCL-MIB::rlDnsResNCacheErrInetSource
OID (numeric): 1.3.6.1.4.1.9.6.1.101.93.11.1.7
Node type: OBJECT-TYPE
Type: InetAddress
Access: read-only
Description: Host which sent the authoritative error, 0.0.0.0 if unknown.
What is rlDnsResNCacheErrInetSource?
This read-only field reports the IP address of the authoritative name server that returned the negative response, a name error or no-data result, now cached in this entry, or 0.0.0.0 if unknown. An administrator checks it to identify which upstream DNS server is the source of a persistent lookup failure being reported by cached entries. For example, if many hostnames under one domain are failing to resolve, this OID can reveal they all trace back to the same misbehaving authoritative server.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.6.1.101.93.11.1.7 snmpwalk -v2c -c public <target> CISCOSB-DNSCL-MIB::rlDnsResNCacheErrInetSource
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.6.1.101.93.11.1.7.1 snmpget -v2c -c public <target> CISCOSB-DNSCL-MIB::rlDnsResNCacheErrInetSource.1
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OID Breakdown
Upper-level ancestors (10 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.9 | cisco | CAT2600-MIB |
| 1.3.6.1.4.1.9.6 | otherEnterprises | CISCO-SMI |
| 1.3.6.1.4.1.9.6.1 | ciscoSB | CISCO-SMI |
| 1.3.6.1.4.1.9.6.1.101 | switch001 | CISCOSB-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.6.1.101.93 | rlDnsCl | CISCOSB-DNSCL-MIB |
| 1.3.6.1.4.1.9.6.1.101.93.11 | rlDnsResNCacheErrInetTable | CISCOSB-DNSCL-MIB |
| 1.3.6.1.4.1.9.6.1.101.93.11.1 | rlDnsResNCacheErrInetEntry | CISCOSB-DNSCL-MIB |
| 1.3.6.1.4.1.9.6.1.101.93.11.1.7 | rlDnsResNCacheErrInetSource | CISCOSB-DNSCL-MIB |