With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cipSecEndPtHistLocalPort
Cisco IPSec Sec End Point History Local Port
1.3.6.1.4.1.9.9.171.1.4.3.2.1.9
The port number of the local Endpoint's traffic.
Back to CISCO-IPSEC-FLOW-MONITOR-MIB MIB page.
IPHost Network monitor allows you to monitor cipSecEndPtHistLocalPort 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.