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1 IPv6协议产生的背景 随着Internet用户的迅速增加,信息量的加大以及Internet上新的应用的出现,人们对IP协议的地址空间、性能以及安全性等方面有了新的需求,网络地址不足的危机日益严重。按目前入网主机的增长速度预计,到2005年左右,IP地址将被耗尽。虽然采用内部地址(private address)、无类别域间路由(classless inter do-
1 Background of IPv6 Protocols With the rapid increase of Internet users, the increase of the amount of information and the emergence of new applications on the Internet, people have new demands on the IP protocol such as address space, performance and security. The network address Insufficient crisis is worsening. According to the current growth rate of host network is expected to 2005 or so, IP addresses will be depleted. Although the use of internal address (private address), classless inter-domain routing (classless inter do-