I set up an ipsec connection from our Balance 210 to an instance in AWS running Strongswan. The tunnel on the peplink is configured to route to 4 different remote network ranges. The B210 reports that the tunnel is up and connected and for a while it worked fine - I was able to connect to instances in all remote networks without a problem.
However, in the past couple of weeks I suddenly have been unable to connect to the remote instances any more. The Peplink still reports the tunnel is up and I can see the connection details in the strongswan instance’s logs, but when I try and make connections from my laptop behind the B210 I can’t see any traffic hitting the strongswan instance.
The IPSec logs on the B210 are no help, they show only that the tunnel connection was successful, but I have no insight into any attempts to traverse the tunnel. Is there any way I can turn on better debug logging on the Peplink? At the moment I’m just fumbling blindly.