Out with the Old, In with the IPv6

by Monica G

Everyone knows what an IP address is used for, therefore most people know what theirs is, however with the depletion of available addresses, and some changes have to be made. With IPv4, 4 billion addresses were made available with 12 digits however with IPv6 the creation of longer addresses was made possible therefore allowing for more addresses. But not everyone gets any old 12 digits; each address belongs to a certain class, ‘A’, ‘B’ or ‘C’. Some belong to class ‘C’ only because those addresses are for private use, such as home networks and can be reused (multiple devices can use the same one). And large scale companies like Amazon and Google own class ‘A’ addresses.

This is relative to the class in terms of the web. Because everyone is assigned an IP address you can actually look people up in that way. And when creating anything on the web, addresses are needed. Therefore it is handy to understand the relevance of IP addresses play because perhaps one day we might want to create something and knowledge of addresses may come in handy.

 There are only a couple of things I felt were missing in the article, what happens when we run out of addresses and who will suffer from this scarcity. The article does touch on the fact that some companies have already started to convert to IPv6 but what about the average user.

Head, C. (2011, January 21). Geek 101: Why Your IP Address May Soon Be an Antique. Retrieved January 8, 2012, from PCWorld:  http://www.pcworld.com/article/217355/geek_101_why_your_ip_address_may_soon_be_an_antique.html

1 thought on “Out with the Old, In with the IPv6”

  1. I cannot begin to tell you how much this issue affects me. I currently hold a CCNA certification but when I acquired the certification, IP ver.4 was what was presented on the test. When i go to renew my certification in two years, I will have to take the test using IP ver.6. I already know ver.6, it just takes longer to convert from an ver.6 address to binary which will be a factor in taking the test. To answer your comment at the end of the article, Class A and B in IP ver.4 addresses ran out years ago, which is why IP ver.6 was originally created. However, since then a protocol called NAT (Network address translation) was created in order save addresses and prevent the forced integration of IP ver.6. Regardless, IP ver.6 will be implemented in coming years, but not as soon as they would have you believe.

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