Next February 2nd has been dubbed "D-Day" by many computer scientists, with the world expected to run out of IP address blocks at that time.
明年2月2日被许多计算机科学家称为“D日”，预计那时世界上所有IP地址将用完。
Internet Protocol addresses are the unique number sequences allocated to every website. The Internet Assigned Numbers Authority distributes these digits to registries representing five global regions. IPv4 is the last block of addresses based on the original standard. The world has about 4.3 billion IPv4 addresses.
互联网通信协议地址是分配给每个网站的唯一编号顺序。互联网地址分配机构的登记册分发这些数字代表全球五大区域。IPv4是原标准基础上的最后一批地址。全球有约43亿个IPv4地址。
The next Internet Protocol generation is IPv6, which provides four billion times more space, to help ensure the web continues its current growth rate. China's current IPv6 application volume is 345 times less than that of top-ranked Germany.
IPv6是下一代的互联网协议，它提供了四十亿倍以上的空间，确保网络继续其目前的增长速度。中国目前的IPv6应用数量低于排名第一的德国345倍。
IPV6：互联网协议第六版（Internet Protocol Version 6）
D-Day：（第二次世界大战中）盟国在西欧登陆日
IPv4：互联网协议（Internet Protocol，IP）的第四版