If you have an existing VPC that supports IPv4 only, and resources in your subnet that are configured to use IPv4 only, you can enable IPv6 support for your VPC and resources. Your VPC can operate in dual-stack mode — your resources can communicate over IPv4, or IPv6, or both. IPv4 and IPv6 communication are independent of each other.     阅读全文

IPv6是“Internet Protocol Version 6”的缩写，是由国际互联网标准化组织IETF设计的用于替代现行版本IPv4的下一代互联网核心协议，对过渡、路由、网管、传输、安全等已有比较成熟的标准。IPv6 wikiChina_Next_Generation_Internet     阅读全文