With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cipSecPhase2GWInDecrypts
Cisco IPSec Sec Phase2 GW In Decrypts
1.3.6.1.4.1.9.9.171.1.3.5.1.12
The total number of inbound decryption's performed by all current and previous IPsec Phase-2 Tunnels.
Back to CISCO-IPSEC-FLOW-MONITOR-MIB MIB page.
IPHost Network monitor allows you to monitor cipSecPhase2GWInDecrypts on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.