arping - ARPリクエストする

# arping 172.16.0.1
ARPING 172.16.0.1
60 bytes from 00:50:56:c0:00:08 (172.16.0.1): index=0 time=303.030 usec
60 bytes from 00:50:56:c0:00:08 (172.16.0.1): index=1 time=41.008 usec