[AusNOG] /20 Available

[Brett O'Hara]

I'm vaguely recall at one ipv6 conference or another, Geoff said that his
projections indicated ipv6 exhaustion in 430 odd years.

Far enough away to make it a Somebody Else's Problem(tm)

Happy to be corrected on the detail.....

Regards,
   Brett




On Tue, Jan 22, 2013 at 9:37 AM, august forsakov <forsakov at gmail.com> wrote:

>  IPv6 addresses are assigned to organizations in much larger blocks as
>> compared to IPv4 address assignments—the recommended allocation is a /48 block
>> which contains 280addresses, being 248 or about 2.8×1014 times larger
>> than the entire IPv4 address space of 232 addresses and about 7.2×1016 times
>> larger than the /8 blocks of IPv4 addresses, which are the largest
>> allocations of IPv4 addresses. The total pool, however, is sufficient for
>> the foreseeable future, because there are 2128 or about 3.4×1038 (340
>> trillion <http://en.wikipedia.org/wiki/10%5E12> trillion trillion)
>> unique IPv6 addresses.****
>>
>> Each RIR can divide each of its multiple /23 blocks into 512 /32 blocks,
>> typically one for each ISP; an ISP can divide its /32 block into 65536
>> /48 blocks, typically one for each customer;[16]<http://en.wikipedia.org/wiki/IPv6_address#cite_note-16>
>>  customers can create 65536 /64 networks from their assigned /48 block,
>> each having 264 addresses. In contrast, the entire IPv4 address space
>> has only 232 (about4.3×109) addresses.****
>>
>> By design, only a very small fraction of the address space will actually
>> be used. The large address space ensures that addresses are almost always
>> available, which makes the use of network address translation<http://en.wikipedia.org/wiki/Network_address_translation>
>>  (NAT) for the purposes of address conservation completely unnecessary.
>> NAT has been increasingly used for IPv4 networks to help alleviate IPv4
>> address exhaustion <http://en.wikipedia.org/wiki/IPv4_address_exhaustion>
>> .
>>
>
> However many trillion, quadrillion or quintillion ip addresses are
> possible with IPv6 there will always be a shortage at some point...
> Any technological renewal wave will show that to be true, so we _will_ run
> out of IPv6...
> Maybe we'll want to assign each gene an ip address as will as its
> associated body cell... hahaha
>
> --
> Best regards.
> Gus
>
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