[usuario@maquina ~] ping -b direccion.de.broadcast
56 bytes from 192.168.20.141 icmp_seq=1 ttl=57 time=38.2 ms
56 bytes from 192.168.20.231 icmp_seq=1 ttl=57 time=32.7 ms
56 bytes from 192.168.20.156 icmp_seq=1 ttl=57 time=31.2 ms
56 bytes from 192.168.20.141 icmp_seq=2 ttl=57 time=31.3 ms
56 bytes from 192.168.20.200 icmp_seq=1 ttl=57 time=30.8 ms
...