With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgkLZoneStatsRcvdLocationRejects
Cisco Gatekeeper L Zone Stats Received Location Rejects
1.3.6.1.4.1.9.10.40.1.1.4.2.1.4
The number of Location Rejects received for the local zone.
Back to CISCO-GATEKEEPER-MIB MIB page.
IPHost Network monitor allows you to monitor cgkLZoneStatsRcvdLocationRejects 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.