A RRAS server can route network traffic or set up either dial-up networking or a virtual private network (VPN).

RRAS伺服器可以路由网路流量，或设定拨号网路或虚拟私人网路(VPN)。

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According to the three kinds of accessing ways of the VPN users, this paper gives the design method, the internal algorithm and the data flow of the Virtual Private Network access server.

根据虚拟专用网用户三种不同的接入方法，文章给出v P N接入设备的设计方案、数据处理流程及内部算法。

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The redundancy provided the core switch, installation, configuration and access server virtual private network.

提供核心交换机的冗余，虚拟专用网的接入与各种服务器的安装、配置。

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