I would like to monitor VPN is UP using NAGIOS. I think its necessary configure tunnel monitor for this, right??? what are the options to monitor VPN is UP? and monitor config profile.
The way I monitor my VPN tunnels with a 3rd party tool is to give each tunnel interface an IP address and put in a static route that it can only be accessed by that PAN. Then I point the tool at the far end of the tunnel's IP address. Since the IP can only be accessed if hte tunnel is up. If it ever goes down, the 3rd party tool alerts.
Hope that makes sense.
That would be more for like a failover scenario. You could do a special log filter option that I recently learned about from @BPry, https://live.paloaltonetworks.com/t5/General-Topics/customised-option-for-email-alert-for-ISP-link-u...
Hope this helps!
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