And as a follow up to that. ARIN announced today that they are down to their last /8 https://www.arin.net/announcements/2014/20140423.html This means that their allocation policy changes in line with their 4 phase approach. APNIC has called for organisations to accelerate their adoption of IPv6. http://www.apnic.net/publications/news/2014/shift-to-ipv6-to-accelerate-as-g... Time to put some money into those billing systems eh =) Dean On Wed, Apr 23, 2014 at 6:54 PM, Dean Pemberton <nznog(a)deanpemberton.com> wrote:

Thanks for that Leo,

For those interested in when these returned addresses will be able to be allocated to end users, the policy which covers this is:

Global Policy for Post Exhaustion IPv4 Allocation Mechanisms by the IANA | (Ratified 6 May 2012)

http://www.icann.org/en/resources/policy/global-addressing/allocation-ipv4-p...

It basically says that this pool of returned addresses becomes active when the first of the RIRs has only a /9 left in its free pool.

You can read the details of how this works at the above link (I'm massively oversimplifying here and will happily ignore pedants), but essentially it means that once that happens the IANA free pool will be divided up equally among the five RIRs.

So when is this likely to happen?

Well Geoff's excellent page at http://www.potaroo.net/tools/ipv4/ Tells us the following:

Projected RIR Address Pool Exhaustion Dates: RIR Remaining Addresses in RIR Pool (/8s) APNIC: 0.7900 RIPE NCC: 0.8207 LACNIC: 0.6517 ARIN: 1.2527 AFRINIC: 3.1313

So when the first of those RIRs gets down to 0.5 /8 (a /9) then IANA will allocate out what is left in the returned address pool. Don't get excited though, we're not talking about a huge amount of additional address space.

The way that APNIC plans to allocate this additional address space was covered off in prop-105 (http://www.apnic.net/policy/proposals/prop-105).

Leo, It would be great if IANA could put the total amount of returned space in these summary mails.

Something like:

"There is a total of a /XX of space currently in the pool. If the pool were to become active today, each RIR would receive /YY of space"

Hope this helps to make things a bit clearer.

Dean

On Wed, Apr 23, 2014 at 11:20 AM, Leo Vegoda <leo.vegoda(a)icann.org> wrote:

...

Hi,

In April 2014, ICANN updated the IANA IPv4 Recovered Address Space registry to reflect the return of 14 /24 prefixes (5,376 IPv4 addresses) by the RIPE NCC. The updated registry can be found at: https://www.iana.org/assignments/ipv4-recovered-address-space

Kind regards,

Leo Vegoda

ICANN

IANA

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Not a bad rule. It was also interesting at APRICOT to hear carriers within the region start to get the message of: Sure you have to run LSN (Large Scale NAT). But it's expensive. And every dollar you spend on deploying IPv6 you save yourself many times that in not having to buy more expensive LSN. One gram of IPv6 == 1 kilogram of LSN On Thu, Apr 24, 2014 at 5:03 PM, Richard Hector <richard(a)walnut.gen.nz> wrote:

On 24/04/14 16:25, Dean Pemberton wrote:

...

And as a follow up to that.

ARIN announced today that they are down to their last /8 https://www.arin.net/announcements/2014/20140423.html

This means that their allocation policy changes in line with their 4 phase approach.

APNIC has called for organisations to accelerate their adoption of IPv6. http://www.apnic.net/publications/news/2014/shift-to-ipv6-to-accelerate-as-g...

Time to put some money into those billing systems eh =)

I propose a simple rule: "You can't have any more IPv4 space unless everything that's v4-addressable is also v6-addressable".

Richard

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