Implemented the sending of custom-built ARP detecting frame and reading of ARP buffer by coding, and fixed the discovery results of devices using corresponding algorithm; Moreover I implemented the distributed discovery of message based on ARP protocol.

• 编码实现了定制ARP探测帧的发送和ARP缓存的读取,并用相应算法确定设备的发现结果:并使用RMI技术实现了分布式的基于ARP协议报文发现。