/tool netwatch
add host=8.8.8.8 up-script=":log warning \"Ping 8.8.8.8 up\"" down-script=":log error \"Ping 8.8.8.8 down\""

Ако рутера има beeper може да се добави и звук.

/tool netwatch
add down-script=":log error \"Ping 93.155.130.37 down\";\r\
    \n:beep frequency=4000 length=1000ms" host=93.155.130.37 up-script=\
    ":log warning \"Ping 93.155.130.37 up\";\r\
    \n:beep frequency=2000 length=1000ms"