in the docs is written
To determine the status of a provider, the system sends an ICMP packet (ping) at regular intervals. If the number of dropped packets exceeds a certain threshold, the provider is disabled.
But: What is pinged to determinate the down-status? The Gateway? Something on the internet?
Im my case I have a Standard-Router and behind this Router the Nethserver. If the gateway is pinged, I will not recognize that the internet connection may be down and will not switch to the backup link.