IPv4's Last Day: What Will Happen When There Is Only IPv6?
Apr 23, 2010, 22:33 (6 Talkback[s])
(Other stories by Sean Michael Kerner)
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"How will we know when IPv4 address space is all used up? And
what will happen when that day comes?
"The modern Internet has been built using IPv4 (define), which
provides for 4.3 billion address, a supply that could run dry
within the next two years. Organizations that allocate IP address
space like the American Registry for Internet Numbers (ARIN) have
attempted to forecast when IPv4 address space will be gone, but
it's not an exact science, and there is no precise date to mark on
"At the ARIN XXV policy meetings held here this week, ARIN CIO
Richard Jimmerson explained how the organization expects to know
when the final IPv4 address is gone."