Posted by Vint Cerf, Chief Internet Evangelist (Cross-posted from the Official Google Blog .) IPv4 , allows for approximately 4 billion unique addresses—and that number is about to run out. announced (PDF) that it has distributed the last batch of its remaining IPv4 addresses to the world’s five Regional Internet Registries , the organizations that manage IP addresses in different regions. These Registries will begin assigning the final IPv4 addresses within their regions until they run out completely, which could come as soon as early 2012.IPv6 —is essential to the continued growth of the open Internet. IPv6 will expand Internet address space to 128 bits, making room for approximately 340 trillion trillion trillion addresses (enough to last us for the foreseeable future). World IPv6 Day , scheduled for June 8, 2011. On this day, all of the participating organizations will enable access to as many services as possible via IPv6.
2^128 ~ 340 x 10^36 which is 340 undecillion (not trillion).
ReplyDeleteSince no one knows what an undecillion is, Vint said "340 trillion trillion trillion" which is a good way of approaching a number that is so large as to be nearly unimaginable. Please read before posting?
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