The depletion of IPv4 addresses, and the transition to IPv6, has
caught the attention of a "factual" paper from The Number Resource
Organization, the body representing the four Regional Internet
Registries.
The paper explains what is IPv6. It gives a good analogy to help
understand the magnitude of the number of addresses available in IPv6
when compared to IPv4. The paper says "IPv6 address space is huge and
that to visualise it, to try comparing a golf ball (IPv4) to several
times the planet (IPv6).
The paper also notes that in the developed world there are around two
IPv4 addresses used per head, and if this rate of use "was replicated
throughout the world, a total of 12 billion addresses would be needed,
an impossible achievement since IPv4 provides a maximum of just 4
billion addresses."
The paper also outlines how allocations of IP addresses are made and to
whom, how IPv6 addresses are being allocated and a range of IP
address-related other issues.
To read the paper by the NRO, see:
nro.net/documents/nro50.html
David Goldstein
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