Equivalent Scan with THCRut

# time ./thcrut arp 192.168.203.0-192.168.203.255
thcrut: using source ip 192.168.203.81
thcrut: listening on eth0
192.168.203.0    00:04:23:ae:cd:42 HP
192.168.203.126  00:04:23:ae:cd:42 HP
[...]
0.035u 0.005s 0:07.45 0.4%      0+0k 0+0io 0pf+0w