The four horsemen of the Apocalypse.

Six things small networks need to know about IPv6

There are only about 31.5 million IP addresses left — enough to last just a few years. If IPv4 were the only protocol out there, the four horsemen would be saddling up right about now.

Without internet addresses, we won’t have an “internet of things”

The people who run the internet are expected to announce (update: they announced it) that they’ve allocated the last set of internet addresses today. In a matter of months, the old addresses based on the Internet Protocol version 4, or IPv4, are going to run out.