With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cagwDhcpStatisticsGroup
Cisco's ASN Gateway Dhcp Statistics Group
1.3.6.1.4.1.9.9.638.2.2.4
These objects describe the DHCP statistics of the ASN GW.
Back to CISCO-ASN-GATEWAY-MIB MIB page.
IPHost Network monitor allows you to monitor cagwDhcpStatisticsGroup on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.