C:\>check_ping.bat 127.0.0.1
OK: Ping succeded

C:\>check_ping.bat 192.168.0.1
CRITICAL: Ping check failed

---check_ping.bat start---
@echo off
ping -n 1 %1 -w 20 >NUL
IF ERRORLEVEL 1 GOTO err
IF ERRORLEVEL 0 GOTO ok
GOTO unknown

:err
echo CRITICAL: Ping check failed
exit /B 1

:unknown
echo UNKNOWN: SOmething went wrong
exit /B 3

:ok
echo OK: Ping succeded
exit /B 0
---check_ping.bat end---