We had site to site vpn tunnels and traffic is always stuck and until unless we reset or clear the traffic the access is not working.
Any one have experience . The VPN tunnel never go down only the traffic PA to Sonic wall any recommendation on how to troubleshoot this issue ?
If tunnel monitoring is enabled you would be getting a critical vpn event within your system logs stating the tunnel is down when the target becomes unreachable; either I'm missing something or at least some traffic is making it through the tunnel. Tunnel monitoring would attempt to resolve the issue by accelerating the re-key in an attempt to get things to refresh and become operational again, because you are using a third party firewall you wouldn't get the advantage of DPD.
It really sounds like your missing something when it comes to re-key events, so I would look at your lifetime settings.
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