With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cDhcpv4ServerClientTable
Cisco Dynamic Host Configuration protocol Server Client Table
1.3.6.1.4.1.9.10.102.1.4.4
An optional list of addresses that are known by this server. The list MUST contain addresses that have not expired. The list MUST NOT contain addresses that have never been assigned by the server UNLESS the lease is pre-configured in the server (e.g., a static lease for a host). Expired leases MAY appear during the time they are 'remembered' by the server for subsequent assignment to the same host.
Back to CISCO-IETF-DHCP-SERVER-MIB MIB page.
IPHost Network monitor allows you to monitor cDhcpv4ServerClientTable on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.
