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企业集成是现代企业发展的新阶段，Extranet技术是企业集成的关键支撑技术。构建在Internet上的Extranet网络可以把各个企业的Intranet安全地互联在一起，具有安全性、高效性、广泛应用性和开放性，以及较低的网络运行费用等特点，并可满足企业间共享信息的要求。文章在提出Extranet协议体系结构的基础上，首先分析了Extranet网络关键技术，然后给出了Extranet网络关键技术的具体实现—Extranet网络构造工具ExtranetConstructor，最后对ExtranetConstructor的性能进行分析。
Enterprise integration is a new stage in the development of modern enterprise. Extranet technology is the key support technology in enterprise integration. Extranet networks built on the Internet can be interconnected securely with each enterprise Intranet, with the characteristics of security, high efficiency, wide applicability and openness, as well as lower network operating costs and can meet the sharing of information between enterprises Request. Based on the architecture of Extranet protocol, the paper first analyzes the key technology of Extranet network and then gives the concrete realization of the key technology of Extranet network. Extranet Constructor is the Extranet network construction tool. Finally, the performance of Extranet Constructor is analyzed.