Re: VPN tunnel going up and down (how to check if ISP has block ESP traffic)

Hi,

If everything is stable without VPN monitor then mostly it's not an issue with the ISP.  In my previous KB it explains how VPN monitoring work. By default the feature will work only if you have VPN between two netscreen devices.

Please follow KB if you are using any different vendor : https://kb.juniper.net/InfoCenter/index?page=content&id=KB8530&actp=METADATA or why do you need the VPN monitor and what's the impact if you don't use it.

Thanks,

Vikas