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 ...

The format of an IP address in the traditional 32-bit version of the IP protocol. For the foreseeable future, IPv4 will co-exist with the newer IPv6 version (see IPv6). IPv4 uses a "dotted decimal" ...

I don’t know about you, but it has been a long time since my laptop was assigned a public IPv4 address. Most of the time my laptop has a private RFC1918 IPv4 address. Rarely does my computer have a ...

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 ...

You'd think by now with the last IPv4 Internet addresses disappearing, we'd all be well on our way to using IPv6 addresses. You'd be wrong. So, it is that there's now a growing market for IPv4 ...

1,370 million IPv4 addresses were used up this past decade. We have 722 million left, so the bottom of the pool is in sight. There are 3,706,650,624 usable IPv4 addresses. On January 1, 2000, ...

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 ...

We just saw that the mask determines where the boundary between the network and host portions of the IP address lies. This boundary is important: If it is set too far to the right, there are lots of ...

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