SHA
etheraddr_string(SHA(ap)));
|| ap->arp_hln != sizeof(SHA(ap))
if (memcmp((char *)ESRC(eh), (char *)SHA(ap), 6) != 0)
printf(" (%s)", etheraddr_string(SHA(ap)));
if (memcmp((char *)ESRC(eh), (char *)SHA(ap), 6) != 0)
printf(" (%s)", etheraddr_string(SHA(ap)));
printf(" is-at %s", etheraddr_string(SHA(ap)));