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看来这一天真的来啦
http://en.wikipedia.org/wiki/IPv4_address_exhaustion
As of 22 January 2011 (2011 -01-22)[update], seven IANA assignment blocks (/8 CIDR blocks) remain unallocated and APNIC is eligible for two new blocks.[2][12]
According to IANA policies each one of the last five remaining blocks is to be distributed to the five RIR's, respectively, exhausting the IANA pool. At the RIR level, APNIC is expected to be exhausted first within 8 to 9 months. By early 2012, new devices and services are expected to appear on the Internet that are only reachable by IPv6. These will only be accessible from the IPv4 Internet if older hosts that cannot implement IPv6 utilize special translator gateway services. |
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