VPN tunnel uptime problem

PeterUK

USG FLEX 700H V1.36(ABZI.0)

So I don't normally look at Nebula but now and then I log in to view some things like the VPN usage and connectivity and I'm sure the last time I looked when I had three tunnels that are local it showed solid green for all of them but I added a 4th and check over some days and some red was showing I through what was the cause was incorrect local/remote ID but no was not that. I then disabled the 4th tunnel and still there was a drop and all at the same time for the three tunnels.

So now I have enabled the 4th and added a 5th to do a ping to see if the ping drop or does not drop when Nebula show red as a drop.

The link from/to FLEX700H and Zyxell 110 gone through three switches and I have checked port up and down logs all showed clear.

PeterUK

Caught it in the ack!

So this looks to be a Nebula problem because my ping test was running fine down test tunnel all other tunnels were fine but Nebula says they are all disconnected when not.

There might be two random problems at play because the above show disconnected so you would that think that would show in connectivity but not this time? maybe the next time it happens it will show?

Zyxel_Melen

Hi @PeterUK

The discrepancy you're seeing (where your ping test is successful but the Nebula dashboard shows "disconnected") is due to the fact that the VPN status on the Nebula Control Center (NCC) is not displayed in real-time.

PeterUK

Hi Melen

Even if its not real-time the last heartbeat which for the VPN tunnels looks to be 5 minutes should correctly show if it tunnels are connected or not.