SET ADDR1=192 SET ADDR2=168 SET ADDR3=0 SET ADDR4=254 SET /A ADDR4=%RANDOM% %% %ADDR4% PING %ADDR1%.%ADDR2%.%ADDR3%.%ADDR4%
SET ADDR1=192 SET ADDR2=168 SET ADDR3=0 SET ADDR4=253 SET /A ADDR4=%RANDOM% %% %ADDR4%+1 PING %ADDR1%.%ADDR2%.%ADDR3%.%ADDR4%