Yesterday IPv6 went live, as expected, without a hitch. IPv4 has run out of addresses and it is time to move to the more IPv6.
So, What Does This Mean to Me?
Not much right now. The IPv6 rollout was done using Dual Stack Implementation, which works with IPv4. But, you may want to double check future hardware purchases to make sure they support IPv6. Also, since IPv4 is out of addresses it is likely that you will begin using these new addresses in the near future.
Why the Change?
In short, we are all out of IPv4 addresses. This is bad considering everything under the sun is now needing to connectivity. IPv4 has only 4,300,000,000 (4.3 billion) addresses available while IPv6 supports 340,282,366,920,938,463,463,374,607,431,768,211,456 or 3.4×1038 addresses. IPv6 was also designed to be more secure by encrypting all traffic while speeding up communications by delivers packets more efficiently.
What Does IPv6 Look Like?
As you know, IPv4 address looks something like this: 255.255.255.255. Beyond the obvious difference of length, IPv6 looks a bit different, maybe something like this: 3ffe:1900:4545:3:200:f8ff:fe21:67cf.
You may notice that some fields have fewer than 4 digits. The reason for this is these fields began with zeros, which can be omitted, changing :0003 to :3. Additionally, :: can be used to collapse fields filled with zeros like this: fe80:0:0:0:200:f8ff:fe21:67cf becomes fe80::200:f8ff:fe21:67cf.
This is only a brief introduction and you can read much more about IPv6 here.
Use this page to find out if your network supports IPv6.
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