首先介绍了IPv4和IPv6网络的现状及目前采用的几种过渡技术，然后提出了一种基于隧道技术和双协议栈技术迁移方案。

This paper first introduce the present and immigration technology from IPV4 to IPV6, then design immigration method based on tunnel and double protocol stack. Technology.

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描述在与IPv 4网络共存情况下实施IPv6的技术要求(包括协议放式，双栈方式，隧道方式)。

Describe the technological requirements for running IPv6 in conjunction with IPv4 (including: protocols, dual stack, tunneling, etc).

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然后详细介绍了针对过渡期不同问题的具体策略和方案，包括双协议栈、隧道技术和协议翻译机制。

Then the idiographic scheme are introduced in detail against different problems in transition period, including dual protocol stack, the tunnel technology, translating mechanism.

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