With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ceipSecSaIndex
Cisco Enhanced IP Sec Security Association Index
1.3.6.1.4.1.9.9.432.1.1.4.1.2
The object, in the context of the IPsec tunnel 'ceipSecTunIndex', is an index of security associations comprising the Phase-2 IPsec tunnel represented by the tunnel index 'ceipSecTunIndex'. The value of this index is a number which begins at 1 and is incremented with each SPI associated with the corresponding IPsec Phase-2 Tunnel.
Back to CISCO-ENHANCED-IPSEC-FLOW-MIB MIB page.
IPHost Network monitor allows you to monitor ceipSecSaIndex 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.