With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cDnsErrorSentFormatErrors
Cisco Dns Error Sent Format Errors
1.3.6.1.4.1.9.9.405.1.8.7
Total number of requests received which were unparseable.
Back to CISCO-DNS-SERVER-MIB MIB page.
IPHost Network monitor allows you to monitor cDnsErrorSentFormatErrors on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.
