RV320 to RV320 VPN Tunnels - stop passing traffic in connected state
I have three RV320's connected in a full mesh of multiple LANs on each side. 9 tunnels are configured on each RV320 to interconnect the three sites. Once the VPN's are configured using keep-alives, and all proper parameters, the tunnels come up and stay connected. Traffic works as expected and there are no issues once things get established.
However, after some time, lets say after several hours of being connected, the tunnels just stop forwarding traffic. The status remains connected, but as I setup continuous pings across the tunnels, the traffic just stops being forwarded.
Any ideas as to why the tunnel would stop forwarding traffic when the tunnels remain up? Is this a certificate validity issue? Dead-peer issue? Defect?
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