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本文应用嵌入式技术设计了一个网络数据包嗅探器的软硬件系统,研究了把主要用于UNIX/Linux平台上捕获网络数据包的函数库Libpcap移植到μC/OS-II平台上,捕获网络数据包的原理与方法。
In this paper, a software and hardware system of network packet sniffer is designed by using embedded technology. The library Libpcap which is mainly used to capture network packets on UNIX / Linux platform is ported to μC / OS-II platform, Principles and methods of data packets.