momo zone

调核人的blog

ipv6 … some misunderstand

ipv6最大的缺陷在于不能向下兼容(并不是指NAT64或v4隧道)。但实际上缺陷在ipv4,ipv4无法向前兼容,因为没有地方往里面塞入其他信息来与其他非v4的端点通信。ipv4之所以地址是32位是因为他是一个“测试版本”,而有128位地址的ipv6是一个“生产版本” (IPv4’s 32-bit address length is because IPv4 is the “test version” of the Internet Protocol, and the production version (IPv6) has a more useful 128-bit address length.  —Vint Cerf, the father—or one of the fathers, anyway—of the internet and the IPv4 protocol)

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