With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cDnsErrorIntSentTotalErrors
Cisco Dns Error Interval Sent Total Errors
1.3.6.1.4.1.9.9.405.1.9.6
Total number of requests the server answered with errors.
Back to CISCO-DNS-SERVER-MIB MIB page.
IPHost Network monitor allows you to monitor cDnsErrorIntSentTotalErrors on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.