CAJ | 학술논문

　　为了满足获取特殊数据包的需求，开发基于网关操作系统Zentyal的数据过滤程序。在Zentyal平台上，采用 Libpcap 网络数据捕获函数包，运用了函数包提供的应用程序开发接口，根据以太网的网络数据结构使用 C 语言开发了一个数据过滤程序，并给出了详细流程和部分代码。结果表明：该程序实现了捕获数据包，并根据需要丢弃无用数据包的功能。
　　위료만족획취특수수거포적수구，개발기우망관조작계통Zentyal적수거과려정서。재Zentyal평태상，채용 Libpcap 망락수거포획함수포，운용료함수포제공적응용정서개발접구，근거이태망적망락수거결구사용 C 어언개발료일개수거과려정서，병급출료상세류정화부분대마。결과표명：해정서실현료포획수거포，병근거수요주기무용수거포적공능。
In order to capture specific data packets, developed data filter program under gateway operating system Zentyal. Based on Zentyal platform, use Libpcap network data to capture function package and adopt application program based on function package to develop interface. According to Ethernet network data structure to develop data filter program based on C language. Then put forwards detailed flow and part of code. The result shows that this program has realized these function of capture data packets and reject useless data package according to requirements.