@echo off
Title Secured Chat %random% -- ExpertComputingAdvice.com
color 0b
echo This Is A Secured Chat - Authorisation Number:%random% 
echo ---------------------------------------------------
echo.
set /p username=User ID:
echo %username% has joined! > join.dat

:message
set /p message=Say:
goto ip

: ip
for /f "tokens=1-2 delims=:" %%a in ('ipconfig^|find "IPv4"') do set ip=%%b
set ip=%ip:~1%
goto send

:send
echo %username%@%ip%:(%time%)GMT -- %message% >>log.dat
goto message