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).

youdao

除实盘外，所有报价都以我放最后确认为准，除非另有说明或协议，所有价格均不含折扣。

All quotations, except firm offers, are subject to our final confirmation. Unless otherwise stated or agreed upon, all prices are given without any discount.

youdao

除实盘外，所有报价都以我放最后确认为准，除非另有说明或协议，所有价格均不含折扣。

All quotations, except firm offers, are subject to our final confirmation. Unless otherwise stated or agreed upon, all prices are given without any discount.

youdao