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World IPv6 Day: Tech industry's most-watched event since Y2K

Carolyn Duffy Marsan, Network World | June 8, 2011
The nation's largest telecom carriers, content providers, hardware suppliers and software vendors will be on the edge of their seats tonight for the start of World IPv6 Day, which is the most-anticipated 24 hours the tech industry has seen since fears of the Y2K bug dominated New Year's Eve in 1999.

IPv4 uses 32-bit addresses and can support 4.3 billion devices connected directly to the Internet, but IPv6 uses 128-bit addresses and can connect up a virtually unlimited number of devices: 2 to the 128th power. IPv6 offers the promise of faster, less-costly Internet services than the alternative, which is to extend the life of IPv4 using network address translation (NAT) devices.

One major stumbling block for IPv6 deployment is that it's not backward compatible with IPv4. That means website operators have to upgrade their network equipment and software to support IPv6 traffic

 

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