With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgdTotalRules
Cisco Global Server Load Balancer DNS Total Rules
1.3.6.1.4.1.9.9.595.1.3.7
This object specifies the total number of DNS rules configured. The value of this object corresponds to the number of entries in the cgdDnsRuleTable.
Back to CISCO-GSLB-DNS-MIB MIB page.
IPHost Network monitor allows you to monitor cgdTotalRules on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.