With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cipsTunnelLifetime
Cisco IPsec Tunnel Lifetime
1.3.6.1.4.1.9.9.431.1.1.1
The default lifetime (in seconds) assigned to an IPsec tunnel as a global policy (maybe overridden in specific cryptomap definitions). REFERENCE For information on how a security association is established for an IPsec tunnel, please refer to RFC2409, section 4, paragraph 4.
Back to CISCO-IPSEC-PROVISIONING-MIB MIB page.
IPHost Network monitor allows you to monitor cipsTunnelLifetime 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.