I noticed that Monit was not alerting me of loss of internet connectivity. Today I disconnected my cable modem and ran /usr/local/opnsense/scripts/OPNsense/Monit/gateway_alert. It keeps getting an exit code of 0, no matter what.
Fri May 12 18:40:55 2023 from x.x.x.x
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OPNsense 23.1
hostname:~ $ uname -a
FreeBSD hostname 13.1-RELEASE-p7 FreeBSD 13.1-RELEASE-p7 stable/23.1-n250430-7eb6eb035df SMP amd64
Have opened an issue in OPNSense's github.
Monit /usr/local/opnsense/scripts/OPNsense/Monit/gateway_alert returns exit=0 regardless of gateway status #6562