Ping Alerts for Prometheus

[akshay sharma]

Hi,

I've been monitoring the Linux machine using node-exporter, wherein, the machine is up with two network adapters. I want to raise an alert if the main interface is down.

Scenario: Prometheus is fetching the metrics using main interface  IP:PORT/metrics, if that is down, Prometheus target would show 404, and instance down alert will be raised, but interface is still reachable which is fine. But, now I want to raise an alert when IP is not reachable, not the target. Is there any way module/metric available ex ping?.

thanks,

Akshay