Tuesday, February 1, 2011

First Domino Falls in IPv4 Address Space Exhaustion

As of today, IANA has allocated two /8 IPv4 blocks to APNIC, leaving five remaining /8 blocks. As discussed in a prior post, IANA will now allocate the remaining five /8 blocks, one each to the five Regional Internet Registries (RIRs). IANA's IPv4 address space has been exhausted!

Each of the RIRs now has finite and fixed IPv4 address space for allocation to ISPs. This may take a few months but soon the RIRs will exhaust followed by exhaustion of IPv4 space available to end users. The time to start learning and planning for IPv6 is now!

The timing is perfect given my talk today at Cisco Live! in London regarding IPAM. I will raise major news and reinforce my recommendation to start the process today!

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