With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cslbxDnsProbeIpAddress
Cisco SLB Health Monitor Dns Probe Ip Address
1.3.6.1.4.1.9.9.254.1.6.2.1.3
The IP address that may be expected in response to a DNS probe from a 'healthy' real DNS server.
Back to CISCO-SLB-HEALTH-MON-MIB MIB page.
IPHost Network monitor allows you to monitor cslbxDnsProbeIpAddress 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.