使用自带命令扫描存活主机

Windows

for /l %i in (1,1,255) do @ ping 172.16.212.%i -w 1 -n 1|find /i "ttl="

Linux

for k in $( seq 1 255);do ping -c 1 10.1.1.$k|grep "ttl"|awk -F "[ :]+" '{print $4}'; done