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I know there is a single line of a command and its arguments that can help display all computer IP addresses (those that are being used) on a LAN, and my computer is also a client, as one of those displayed, but I forgot. What is it?

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I don't think this is possible in such a generic way. –  theglauber Dec 20 '12 at 17:41
    
You would have to ping-scan the local subnet and then use the arp -a command listed below. –  cpt_fink Jan 18 at 7:08

4 Answers 4

ipconfig /all (use forward slash, not backwards)

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There is the net view /all command which will list all of the computer names that are connected to the same LAN.

From that you can retrieve the individual IP addresses using the nslookup <computer name> command or write a batch script to do it for you.

Here is an example batch I threw together to illustrate.

@echo off
setlocal EnableDelayedExpansion
set "xNext="
set "xComputer="
for /f %%A in ('net view /all') do (
    set "xComputer=%%~A"
    if "!xComputer:~0,2!"=="\\" for /f "tokens=2,* delims=. " %%X in ('nslookup %%A') do (
        if "!xNext!"=="1" (
            echo.!xComputer! = %%X.%%Y
            set "xNext=0"
        )
        if "!xComputer:~2!"=="%%~X" set "xNext=1"
    )
)
endlocal
pause
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You could do the arp -a command to show all ARP entries in the table about computers on your network.

Source

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It shows every system your computer is aware of/talked to - however, it may not be complete - I ran a quick experiment with arp -a and it didn't show one or two of my systems till I pinged it. –  Journeyman Geek Jan 18 at 5:46
    
Ya, like the link I posted said, it won't show everything unless it has them stored in the tables so so machines won't be shown but it does do a pretty good list. –  GigabitP Jan 18 at 17:35
    
Welcone to Stack Exchange, Gigabit Pony! When a link makes up most of your answer, you should always quote the important parts in case it dies later. See also the howto on writing good answers. –  Blacklight Shining Jan 23 at 4:09
echo ls %USERDNSDOMAIN%|nslookup
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4  
Welcome to SU. Can you please elaborate on what the command do? –  Martin Prikryl May 18 '13 at 8:29

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