国科云提供域名管理、域名锁、智能解析、DDI、IPv6转换、SSL证书等一站式域名解决方案，并形成以云解析、云监控、云盾、云服务器为核心的云计算产品服务体系。
发布时间：2022-10-31 16:30:06
网络地址转换－协议转换技术NAT-PT机制可分为三种不同的类型实现IPv4到IPv6的转换，分别是静态映射的NAT-PT机制、动态映射的NAT-PT机制和NAPT-PT机制。动态映射的NAT-PT中的IPv4和IPv6地址池也是一对一映射的，但它是通过一个IPv4地址池来实现的，IPv4地址池的地址数量决定了可转换IPv6的最大数量，即外部访问时.........【阅读全文】
发布时间：2022-10-31 15:27:32
隧道技术（Tunneling）隧道技术的实现的形式主要有：IPv6 over IPv4隧道（构造隧道），自动配置隧道和6 to 4。IPv6 over IPv4隧道的基本原理如下图（图1， IPv6 over IPv4隧道技术），在隧道的入口和出口处分别由Dual Stack Router连接IPv6网络和IPv4网络，隧道起点的IPv4地址必须手动配置，即将IPv6的数据包作为.........【阅读全文】
发布时间：2022-10-28 15:04:52
一、双协议栈（Dual Stack)双栈技术是IPv4到IPv6过渡的基础，双协议栈技术指在同一台设备上同时支持IPv4和IPv6协议栈，实现分别与IPv4或IPv6节点间的信息互通。IPv6和IPv4是功能相近的网络协议层，在传输过程中基于传输层的TCP/UDP基本没有区别，其基本的工作方式包含接收数据包和发送数据包，具体的访问流程如下图所.........【阅读全文】
发布时间：2022-10-27 15:49:24
IPv4的地址长度为32bits，大约计算拥有43亿地址容量，而IPv6的地址长度为128bits，理论上是接近无限的，远远高于IPv4地址容量。但是，由于现有的IPv4网络设备数量庞大，大多数的互联网应用还是基于IPv4地址，而部署IPv6的网络设备和主机设备所需的升级开销比较大，所以IPv6的地址应用还是一个漫长的过程。由于IPv4和IPv6.........【阅读全文】
JVDLFFLR2025-08-03 17:15
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