All MIBs › CISCO-GSLB-DNS-MIB › cgdDnsTcpSrcPortErrs
cgdDnsTcpSrcPortErrs
Module: CISCO-GSLB-DNS-MIB
OID (symbolic): CISCO-GSLB-DNS-MIB::cgdDnsTcpSrcPortErrs
OID (numeric): 1.3.6.1.4.1.9.9.595.1.4.13
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: This object specifies the number of DNS queries received with TCP source port value as zero.
What is cgdDnsTcpSrcPortErrs?
Reports the count of DNS queries received over TCP whose source port value was zero, indicating a malformed or erroneous query. This read-only counter helps identify misbehaving or misconfigured DNS clients/resolvers.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.595.1.4.13 snmpwalk -v2c -c public <target> CISCO-GSLB-DNS-MIB::cgdDnsTcpSrcPortErrs
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.595.1.4.13.1 snmpget -v2c -c public <target> CISCO-GSLB-DNS-MIB::cgdDnsTcpSrcPortErrs.1
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OID Breakdown
Upper-level ancestors (8 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 |
| 1.3.6.1.4.1.9.9 | ciscoMgmt | CISCO-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.9.595 | ciscoGslbDnsMIB | CISCO-GSLB-DNS-MIB |
| 1.3.6.1.4.1.9.9.595.1 | ciscoGslbDnsMIBObjects | CISCO-GSLB-DNS-MIB |
| 1.3.6.1.4.1.9.9.595.1.4 | cgdGlobalStats | CISCO-GSLB-DNS-MIB |
| 1.3.6.1.4.1.9.9.595.1.4.13 | cgdDnsTcpSrcPortErrs | CISCO-GSLB-DNS-MIB |