With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cikePhase1GWInP2ExchgInvalids
Cisco IKE Phase1 GW In P2 Exchg Invalids
1.3.6.1.4.1.9.9.171.1.2.5.1.8
The total number of IPsec Phase-2 exchanges which were received and found to be invalid by all currently and previously active IPsec Phase-1 IKE Tunnels.
Back to CISCO-IPSEC-FLOW-MONITOR-MIB MIB page.
IPHost Network monitor allows you to monitor cikePhase1GWInP2ExchgInvalids on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.