We want to know which events should we be monitoring in SYSTEM events logs to know that the IPsec tunnel is down and back up again.

[Kandarp_Desai]

Hello, 

Would like to know which specific log events from the system logs for IPsec we should be monitoring to know that the IPsec tunnel has gone down and got back up. 

We don't have tunnel monitoring or path monitoring configured so this is the only way we can monitor the tunnel going up or down. Which logs in the SYSTEM logs can we monitor which indicates that a tunnel has gone down. And also which event indicates that TUNNEL is back up (For both IKEv1 and IKEv2) ?

[TomYoung · Accepted solution]

Hi @Kandarp_Desai ,

The following filter under Device > Log Settings > System work well for me.  The 1st half of the "or" lets me know the VPN is back up, and the 2nd half lets me know the VPN is down.

 ( subtype eq 'vpn' ) and (( description contains 'IKEv2 child SA negotiation is succeeded as responder, non-rekey' ) or ( description contains 'down'))

Thanks,

Tom

[Kandarp_Desai]

Thanks a ton Tom for your answers as always !!