With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
leClientMappingGroup
le Client Mapping Group
1.3.6.1.4.1.353.5.3.1.2.1.3
A collection of objects which map a LAN Emulation Client's 'ifIndex' to its 'lecIndex'.
Back to LAN-EMULATION-CLIENT-MIB MIB page.
IPHost Network monitor allows you to monitor leClientMappingGroup on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.