Question

I’m writing a batch script that switches between ip addresses depending on the users input.
The core functionality of the script works however I want to add some checks into each function to check which setting is already applied and give a response accordingly.

My current code is:

@ECHO OFF
::Change Static IP address for simulator or network connection

:MAINMENU choose option from menu
::Set Current IP Address

for /F "tokens=2 delims=:" %%i in ('"ipconfig | findstr IP | findstr 192."') do SET LOCAL_IP=%%i

ECHO.
ECHO. Set Workstation...........1
ECHO. Set Simulator.............2
ECHO. Quit (no further action)..Q
ECHO.
choice /c:Q21
ECHO.

IF ERRORLEVEL 3 GOTO WORK
IF ERRORLEVEL 2 GOTO SIM
IF ERRORLEVEL 1 GOTO EOF

::Change IP To network settings
:WORK
IF "LOCAL_IP"=="192.168.1.4" (
ECHO. You are already in this mode
GOTO MAINMENU 
) ELSE
(echo "Setting Static IP Information" 
netsh int ip set address name="Local Area Connection" source=static addr=192.168.1.4 mask=255.255.255.0 gateway=192.168.1.254 gwmetric=1 
netsh int ip set dns name="Local Area Connection" source=static addr=192.168.1.1

echo IP Address Set
goto MAINMENU)

::Set Simulator IP Address
:SIM
IF "LOCAL_IP"=="192.168.4.1" (
ECHO. You are already in this mode
GOTO MAINMENU
) ELSE
echo "Setting Static IP Information"
netsh int ip set address name="Local Area Connection" source=dhcp
netsh int ip set dns name="Local Area Connection" source=dhcp
netsh int ip set address name="Local Area Connection" source=static addr=192.168.4.1 mask=255.255.255.0
echo "Setting Static IP Information"
goto MAINMENU

:EOF
pause

I’m having trouble getting the IF statement to compare the current IP address with the one i want to set it to.
Can anybody suggest where I am going wrong or offer some ideas to get this working please?

Answer 1

I guess LOCAL_IP is an environment variable, to use them you have to enclose the name within % so your code will be:

IF "%LOCAL_IP%"=="192.168.1.4" (

and

IF "%LOCAL_IP%"=="192.168.4.1" (

Note: where do you set that environment variable to actual value?