John,
The IPv6 address is for the next generation internet. We are running
out of IP (v4) numbers (the famed "dotted quad" i.e. ###.###.###.###),
so computers are starting to set their own IPv6 addresses to ease the
transition. You don't have to think about it yet, and indeed you can
even turn it off in Network Settings, and it won't affect you right now.
That said, we will all need to be paying attention to it in the next
few years as IPv4 addresses are predicted to run out sometime
(depending on who you talk to) in 2010, 2011, or 2012.
There are only about 3.2 billion possible IPv4 addresses. Sounds like
a big number? We're running out of them. In an increasingly connected
world, IPv6 should allow every refrigerator, toaster and iPod of the
future to have it's own internet address. IPv6 allows for about 3.4 x
10^38 possible addresses. That's a 34 followed by THIRTY-SEVEN zeros!
We're expected to run out of those by about 2015.
Just kidding!
j.
On Nov 4, 2009, at 10:46 AM, Profile <[email protected]> wrote:
David,
I want to jump in for clarification.
On the Airport advanced screen I get this: <pastedGraphic.png>
The string is much longer but I need to keep the size down.
On ethernet I get this: <pastedGraphic.png>
So, is the mac address the iPv6 number?
Thanks ever so much.
John
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