Hey again, Im working on a series of batch programs to help me this misc tasks around the network I work at, on feature i would like to include is to be able to ping multiple hosts without user interaction and save the results to a txt file. The only part i am having difficulty with is inputing a range of ip addresses. ie, 10.129.28.0 to 10.129.28.255. This is part of a script i have already written. echo. echo Please specify target. Type 17331 for client PC. set /p t=Target: echo. ping -n 1 -l 1 %t% > nul if %errorlevel%==0 echo Host %t% is UP! >> %t%.txt if %errorlevel%==1 echo Host %t% is DOWN! >> %t%.txt set /p a=Continue? (Y/n): if "%a%"=="n" exit Please feel free to post any questions concerning my dilemma and I will answer as soon as possible. Thanks

you would need to have it slowly going upwards, how many Ip's are you using? And what is the range? You could use somethin like @echo off SET t=0 :start SET /a t=t+1 ping -n 1 -l 1 127.0.0.%t% > nul if %errorlevel%==0 echo Host %t% is UP! >> 127.0.0.%t%.txt if %errorlevel%==1 echo Host %t% is DOWN! >> 127.0.0.%t%.txt IF %t%==999 Exit Goto start ^^^This would scan from 127.0.0.1-127.0.0.999 You could make it scan any way you want by using increments of increasing variables. So if you wanted to scan every ip addess in this range 0.0.0.0 - 999.999.999.999 @echo off Set a=0 set b=0 set c=0 set d=0 ping -n 1 -l 1 %a%.%b%.%c%.%d% > nul if %errorlevel%==0 echo Host %a%.%b%.%c%.%d% is UP! >> %a%.%b%.%c%.%d%.txt if %errorlevel%==1 echo Host %a%.%b%.%c%.%d% is DOWN! >> %a%.%b%.%c%.%d%.txt :start SET /a d=d+1 IF %d%==1000 ( SET /a c=c+1 set d=0 ) IF %c%==1000 ( SET /a b=b+1 set c=0 ) IF %b%==1000 ( SET /a a=a+1 set b=0 ) IF %a%==1000 EXIT ping -n 1 -l 1 %a%.%b%.%c%.%D% > nul if %errorlevel%==0 echo Host %t% is UP! >> %a%.%b%.%c%.%d%.txt if %errorlevel%==1 echo Host %t% is DOWN! >> %a%.%b%.%c%.%d%.txt Goto start This would take about.... a looong time.... Better specify a range :) I only Batch if possible, 2000 more lines of code, oh well.

thanks for this, i will spend some time implementing it into my script and get back to you. thanks again

Batchfreak, Ipv4 addresses only range form, 0.0.0.0 to 255.255.255.255 and if you wanted to ping them all it would be more efficient to use nested for /l loops(in nt+). @ECHO OFF for /l %%a in (0,1,255) do ( for /l %%b in (0,1,255) do ( for /l %%c in (0,1,255) do ( for /l %%d in (0,1,255) do ( ping %%a.%%b.%%c.%%d>nul if errorlevel 1 (echo Host is down.) else echo Host is up. ) ) ) ) The actual "work" the script is doing would be faster but the pings would take the same amount of time. The reason for this is the goto jumps cause the command processor to search the batch file for the :label. Unfortunately using for /l loops to scan ranges is a little more difficult, I may look into it if I have time.

I agree with Judago. Also, to go through all possible addresses would take 2^32 (about 4 billion) iterations, which would take ages. You probably only need to go through the last one or two loops, depending on your subnet. Also, you probably only want to check from 1 to 254. (255 is used for multicasting for example.)

A better option would be to use a tool that is designed for this purpose. Nmap ("Network Mapper") is a free and open source (license) utility for network exploration or security auditing. nmap.org This will do a ping sweep of your network and save it in 3 separate formats; normal, xml, and grepable. nmap -sP -oA filename 10.129.28.0/24 You can also specify a specific range of IP's instead of the CIDR mask. nmap -sP -oA filename 10.129.28.50-150 -oN/-oX/-oS/-oG <file>: Output scan in normal, XML, s|<rIpt kIddi3, and Grepable format, respectively, to the given filename. -oA <basename>: Output in the three major formats at once

thanks for the script Fishmonger. I have been playing around with it and i am still yet to make it in a set range but i am confident that i will. Another question, is it possible to change the interval of each ping, i know it is possible in unix usine ping -i "interval here", can this be done on Windows. I have been unable to find a solution through ping /? thanks