With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoAtmSnoopVcSnoopedVpi
cisco Atm Snoop Vc Snooped Virtual Path Identifier
1.3.6.1.4.1.9.10.13.1.5.1.1.2
This specifies the VPI value of the snooped connection endpoint.
Back to CISCO-ATM-CONN-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoAtmSnoopVcSnoopedVpi on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.