With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgprsAccPtVerifyDownlinkAddr
Cisco GPRS Access Point Verify Downlink Address
1.3.6.1.4.1.9.9.183.1.1.3.1.33
This object indicates that the Gateway is programmed to check and reject all downstream packets with same source and destination. When the value is set to 'true', the Gateway check and reject all downstream packets with same source and destination and 'false' means this feature is disabled.
Back to CISCO-GPRS-ACC-PT-MIB MIB page.
IPHost Network monitor allows you to monitor cgprsAccPtVerifyDownlinkAddr 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.