Sometimes you need to know your Windows machine’s IP. For example, if you would like to update your dynamic DNS entry from a script file. Here’s a hack that gets the job done.

This is from someone good with windows scripts, updated with some extra ‘shifts’ to get it to work under XP. Check out the link for an explanation. Save this in a batch file, I call mine ‘GetIP.bat’:

:: Script from: http://www.ericphelps.com/batch/samples/ip.txt
@echo off
cd %temp%
:: Make a line fragment "temp.txt"
echo e 100 "call temp2.bat "> script
echo rcx>> script
echo f>> script
echo n temp.txt>> script
echo w>> script
echo q>>script
debug < script > junk
del script
:: Make the working file "temp2.bat"
echo shift> temp2.bat
echo shift>> temp2.bat
echo shift>> temp2.bat
echo shift>> temp2.bat
echo shift>> temp2.bat
echo shift>> temp2.bat
echo set IP=%%9>> temp2.bat
:: Run the command that finds the IP and create "temp1.bat"
copy temp.txt temp1.bat > junk
ipconfig.exe | find "IP Address" | find /v " 0.0.0.0" >> temp1.bat
:: Run the temp1.bat, which runs temp2.bat, which sets the IP variable
call temp1.bat
:: Remove temporary files
del temp1.bat
del temp2.bat
del temp.txt
del junk
:: Display the result
echo Your IP is %IP%
pause