一互通与过渡的要求建设IPv6网络首先需要考虑的问题是与现有IPv4网络互通与过渡的要求。由于目前互联网拥有数目庞大的IPv4用户和设备,IPv4向IPv6的过渡并不能一次性完成,而将是一个循序渐进的过程。实际应用中需要明确网络应用的类型、范围和系统的类型,然后选择合适的转换机 Requirements for Interoperability and Transition The first issue to be considered in building an IPv6 network is the requirement to interwork and transition with the existing IPv4 network. Since the current Internet has a large number of IPv4 users and devices, the transition from IPv4 to IPv6 can not be done in one go, which will be a gradual process. The actual application needs to be clear network application type, scope and type of system, and then select the appropriate conversion machine