How to find your external ip address from the command line
I often need to know what the external IP address for a client is. Thus I’ve cobbled together the following script. Simply copy the code below into externalip.cmd and when run from the command prompt it will do two things for you:
- the script will display the external IP address
- the script will set the environment variable ExternalIP to be whatever that IP is
@echo off :: Find out what the External IP address is :: Create the .vbs file first Echo Option Explicit >externalipaddress.vbs Echo Dim http : Set http = CreateObject( "MSXML2.ServerXmlHttp" ) >>externalipaddress.vbs Echo http.Open "GET", "http://whatismyip.org", False >>externalipaddress.vbs Echo http.Send >>externalipaddress.vbs Echo Wscript.Echo http.responseText >>externalipaddress.vbs Echo Set http = Nothing >>externalipaddress.vbs :: run the resulting .vbs script and set the enviroment variable for /f "skip=2 " %%G IN ('cscript externalipaddress.vbs') DO (Set ExternalIP=%%G) :: Display the enviroment variable Echo External IP is %ExternalIP% :: tidy up and remove the temp file del externalipaddress.vbs /q
Let me know if you find this useful, or if you can improve on it I’d love to hear from you.
Written on August 31, 2011