物以稀为贵，即使对于云计算巨头来说，亦是如此。 近日，亚马逊首席布道师 Jeff Barr 发布了一篇博客，对外宣布即将对公共 IPv4 地址实行新的收费政策，所有的公共 IPv4 地址按每个 IP 每小时 0.005 美元的价格收费，而且无论其是否附加到服务中，都要收费。

编者按：本文来自微信公众号“爱范儿”（ID：ifanr），作者吴羚，36氪经授权发布。 全球网民总数已突破 40 亿，IP 地址终于不够用了。 这里说的是互联网协议第四版，即 IPv4。11 月 25 日，全球五大区域互联网注册管理机构之一的欧洲网络协调中心（RIPE NCC ...

If you are using Internet or almost any computer network you will likely using IPv4 packets. IPv4 uses 32-bit source and destination address fields. We are actually running out of addresses but have ...

The Internet Protocol (IP) developedduring the mid-1970s, is the backbone of a family of protocols thatincludes TCP, UDP, RIP, and virtually every otherprotocol used for Internet communications. The ...

In “automatic” tunneling, hybrid IPv4/IPv6 addresses are created by extending 32-bit IPv4 addresses to 128 bits by adding leading zeros. IPv6 packets are encapsulated within IPv4 headers, so that one ...

In addition to IPv4 (often written as just IP), there is IP version 6 (IPv6). IPv6 was developed as IPng (“IP:The Next Generation” because the developers were supposedly fans of the TV show “Star Trek ...

Rate your favorite Cisco Press books. Years of innovation and work to continuously improve various transport technologies and network elements led operators to have high expectations of their networks ...

To appreciate all the extra functionality and other improvements, Alan Clark takes a look inside to see what makes IPv6 tick. To achieve greater routing efficiency, the IPv6 header has undergonean ...

The world is running out of IP addresses. The current version of the Internet Protocol relies on unique addresses for each device that connects to a network. In the case of the Internet, public IP ...