从理论上讲，全球IPv4地址全部分配完毕，任何新的IPv4网络设备无法再加入互联网世界，但并不意味着原有的设备无法继续上网。而且，实际情况会借由许多因素进行缓解：首先，ISP可以重用和回收未使用的IPv4地址；其次，采用NAT（网络地址转换方法），可 ...

The last few blocks of internet addresses using IPv4 are widely expected to be handed out this week. Southampton University's Tim Chown explores what happens next with the switch to IPv6. As I write, ...

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 ...

Twenty years ago, the fastest Internet backbone links were 1.5Mbps. Today we argue whether that’s a fast enough minimum to connect home users. In 1993, 1.3 million machines were connected to the ...

In April, ARIN, the (North) American Registry for Internet Numbers, announced that it had reached “phase 4” of its IPv4 countdown plan, with fewer than 17 million IPv4 addresses remaining. There is no ...

The global transition from IPv4 to IPv6 has gained major traction, driven by the urgent need to accommodate a rapidly expanding number of internet-connected devices and the introduction of IPv6 ...

In the early 1990s, internet engineers sounded the alarm: the pool of numeric addresses that identify every device online was not infinite. IPv4, the fourth version of the Internet Protocol, used ...