Hi,

Another question. What is the best way to monitor when an IP address becomes responsive?

I want to be able to know when a particular backup DLS line becomes active as it is a backup line and not on normally.

Thanks

John

Article Comments

If the device has got an open port, when it is running, you can use a port sensor. In the settings you can set "Goal" to "Closed". Now the sensor is green, if the port is unavailable and it becomes red, as soon as the port opens. You can now use a notification if the sensor goes into error state.


Jun, 2012 - Permalink

Hi,

This can be done with a batch file sensor.

In the "Custom Sensors\EXE" folder of your PRTG installation, create a new file called PingReverse.bat and paste the following code.

@echo off
ping -n 1 %1|Findstr /I /C:"timed out" /C:"host unreachable" > null
if %errorlevel% == 0 goto error
echo 0:Device is online
rem set sensor to error by returning 2
exit 2
goto end
:error
echo 0:Device is offline
rem set sensor to Ok by returning 0
exit 0
:end

You might need to change the "timed out" and "host unreachable" strings to meet the localized output of your ping command.

Note: do NOT name the batch file ping.bat, this will create an endless loop.

Regards,


Jun, 2012 - Permalink

Thanks for your suggestions. Either will work for my needs!


Jun, 2012 - Permalink