With IPHost Network Monitor you can run simple snmp requests against a IBM device in your network.
ipSecTunnelHistActiveTime
ip Sec Tunnel History Active Time
1.3.6.1.4.1.2.6.119.4.9.4.2.1.5
The length of time the tunnel was active in hundredths of seconds.
Back to ibm-ipsec MIB page.
IPHost Network monitor allows you to monitor ipSecTunnelHistActiveTime on IBM device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring IBM switches right now.
