I have a script to continuously ping a set of machines (stored in SiteName.txt) and once a machine comes online, a counter increments, and the machine is removed from the list so it doesn't ping again (I just need to know if a machine has been online, not if it's on right now).
The issue I have is I've noticed there are a few phantom pings coming up with the IP address of the site they were built at (and that IP hasn't already been taken over by another machine) so I get false positives.
My current code is:
@echo off & setlocal EnableDelayedExpansion
TITLE %~n0
set /a counteron=0
for /F %%a in (%~n0.txt) do set "NVC=!NVC! %%a"
:ping
ping -n 61 127.0.0.1>nul
for %%i in (%NVC%) do (
ping %%i -n 1 | find "TTL=" >nul
if !errorlevel! GEQ 1 (
echo %%i is offline.
) else (
set /a counteron+=1
echo %%i is online
set "NVC=!NVC: %%i=!"
)
)
echo.
cls
echo. %counteron% machines are online.
if defined NVC goto :ping
cls
echo All machines in %~n0 are online.
pause
Is it possible to do the same thing, but if the IP's first 3 octets match a specific set (10.79.208.xxx), then it still comes up as offline?
Thanks in advance
Perhaps
ping %%i -n 1 | find "TTL=" |findstr /b /l /v /c:"Reply from 10.79.208." >nul
which should set errorlevel to zero only if both TTL= is found AND a line beginning (/b) with the /l literal string /c: "Reply from 10.79.208." is /v not found
which I believe is your quest...