With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cDhcpv4ServerSharedNetName
Cisco Dynamic Host Configuration protocol Server Shared Net Name
1.3.6.1.4.1.9.10.102.1.4.1.1.1
The name of the shared network, which uniquely identifies an entry in the cDhcpv4ServerSharedNetTable.
Back to CISCO-IETF-DHCP-SERVER-MIB MIB page.
IPHost Network monitor allows you to monitor cDhcpv4ServerSharedNetName on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.