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所谓的望山跑死马,指的是一句老话——前途光明,道路曲折。看着已经不远了,但走起来还挺费劲。IPv6的发展前景,正用得上这句话。前途光明,是因为 IPv6是大势所趋。由于IPv4只有32位,它提供的地址总数一共只有40多亿个。据权威人士说,网络的发展会使将来的用户每人需要10个 IP 地址,40多亿是怎么也不够用的。虽然有一些地址补偿的办法,但这些办法都会有一个缺陷——丧失端到端特性。有第三方机构预测,IPv4地址将下2005年左右耗尽。
The so-called mountain running dead horse, refers to an old saying - a bright future, twists and turns. It is not far behind, but it is quite strenuous. The development of IPv6 is being used in this sentence. Bright future, because IPv6 is the trend. Since IPv4 has only 32 bits, it provides a total of only about 4 billion addresses. According to authoritative sources, the development of the network will make the future users each need 10 IP addresses, more than 40 billion is not enough. Although there are some ways to address this, there is a flaw with these approaches - the loss of end-to-end features. Third-party agencies have predicted that IPv4 addresses will be depleted around 2005.