This paper introduces the design and development of a main-gateway in home network. The principal function of the main-gateway is to actualize the external network access of home network.

介绍了一种家庭网络主网网关的设计和研制，外部网络通过它能实现对家庭内部网络的接入控制。

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Home gateway and relay connect through Internet in order to form internal home communication network. And this system interact information with outside through home gateway.

家庭网关和中继器之间通过以太网实现家庭内部网络的互联并通过家庭网关与外界进行信息的交互。

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Home Gateway plays a key role in home network and serves as a bridge between external network and home internal network.

家庭网关在家庭网络中起着核心的作用，是外部网络和家庭内部网络的桥梁。

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