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为了及时解决生产环境中突发的网络故障,往往需要一款能够迅速协助网管发现问题的工具。文中提出了一款便携式的硬件Sniffer,系统采用S3C44B0X+uCLinux架构,并基于Libpcap平台实现关键嗅探部分。同时设计的产品复制出一个网络接口可以将系统方便接入网络的任何地方,避免采用分布式结构或ARP洪水包来实现跨越交换网络。
In order to promptly solve a sudden network failure in the production environment, often need a tool that can quickly help the network management to find problems. The paper presents a portable hardware Sniffer, the system uses S3C44B0X + uCLinux architecture, and based on Libpcap platform to achieve the key sniffer part. At the same time, the designed product replicates a network interface to facilitate system access to any part of the network and avoids adopting a distributed structure or an ARP flood packet to achieve a spanning of switching networks.