Get out the confetti. Wednesday is World IPv6 Day.
If you are unaware of the event, you’re hardly alone. Few people know about it and if it is a success, it should stay that way.
The day nevertheless marks an important step in the Internet’s evolution. The event is intended as a “test flight” for a successor to the current Web address system that – if successful – will help to ensure that the Internet runs smoothly into the future.
IPv6, as the Web address system is known, is intended to relieve the strain on a system that has been used since the Internet’s inception. IPv4, the original address system, was devised without consideration for how big the Internet would eventually become as a means for buying diapers, downloading music and sending risqué photos.
The problem is that IPv4 addresses are nearly all taken. The last batches were made available in February and are expected to be claimed by the end of the year.
The addresses are not the Yahoo.com, Facebook.com and Google.com that nearly everyone recognizes. Rather, they are the basic numeric addresses that those domains stand-in for.
IPv4 addresses consist of 32 zeros and ones in different sequences. There are roughly 4.3 billion such addresses.
IPv6 addresses consist of 128 numbers. Given all the possible combinations of zeros and ones, the system offers around 320 undecillion numbers.
Leslie Daigle, chief technology officer for the Internet Society, a nonprofit group that is promoting World IPv6 Day, put it this way: There are more IPv6 addresses “than there are grains of sand on Earth.” Read more…