mac_to_string
mac_to_string(LLADDR((sockaddr_dl*)buffer->source))));
mac_to_string(LLADDR((sockaddr_dl*)buffer->destination))));
inet_to_string(protocolAddress), mac_to_string(LLADDR(hardwareAddress)),
dprintf(" hw sender: %s\n", mac_to_string(header.hardware_sender));
dprintf(" hw target: %s\n", mac_to_string(header.hardware_target));;