These are taken from the FAQs link on RIPE NCC's website that I had shared earlier. QWhat does RIPE NCC do with the address space that is returned? A.When the RIPE NCC starts allocating address space from the last /8, all IPv4 address space that is returned to the RIPE NCC will go back into the last /8 pool of IPv4 address space. It will then be re-used to allocate /22s to LIRs according to section 5.6 of “IPv4 Address Allocation and Assignment Policies for the RIPE NCC Service Region”<http://ripe.net/ripe/docs/ipv4-policies> The rule 5.6 ( http://www.ripe.net/ripe/docs/ripe-553 )says: 5.6 Use of last /8 for PA Allocations The following policies come into effect as soon as RIPE NCC is required to make allocations from the final /8 it receives from the IANA. From then on the distribution of IPv4 address space will only be done as follows: 1. Allocations for LIRs from the last /8 On application for IPv4 resources LIRs will receive IPv4 addresses according to the following: 1. LIRs may only receive one allocation from this /8. The size of the allocation made under this policy will be exactly one /22. 2. LIRs receive only one /22, even if their needs justify a larger allocation. 3. LIRs may apply for and receive this allocation once they meet the criteria to receive IPv4 address space according to the allocation policy in effect in the RIPE NCC service region at the time of application. 4. Allocations will only be made to LIRs if they have already received an IPv6 allocation from an upstream LIR or the RIPE NCC. 2. Assignments to Internet Exchange Point A /16 from the final /8 will be held in reserve for exclusive use by Internet Exchange Points. On application for IPv4 resources, an Internet Exchange Point (IXP) will receive one number resource (/24 to /22) according to the following: - This space will be used to run an Internet Exchange Point peering LAN; other uses are forbidden. - Organisations receiving space under this policy must be Internet Exchange Points and must meet the definition as described in section two of the RIPE document “IPv6 Address Space for Internet Exchange Points”. - IXPs holding other PI IPv4 space for their peering LAN (i.e. they are seeking a larger assignment), must return their old peering LAN resources back to this pool within 180 days of assignment. - New Internet Exchange points will be assigned a /24. Internet exchange points may return this /24 (or existing PI used as an IXP peering LAN) should they run out of space and receive a larger (/23, or /22 if utilisation requires) assignment. - IP space returned by Internet Exchange Points will be added to the reserved pool maintained for Internet Exchange Point use. - Assignments will only be made to IXPs who have already applied for, or received an IPv6 assignment for their peering LAN 3. Unforeseen circumstance 1. A /16 will be held in reserve for some future uses, as yet unforeseen. The Internet is a disruptive technology and we cannot predict what might happen. Therefore it is prudent to keep a /16 in reserve, just in case some future requirement makes a demand of it. In the event that this /16 remains unused at the time the remaining /8 covered by this policy has been distributed, it returns to the pool to be distributed as per clause 1. 4. Post-depletion Address Recycling This section only applies to address space that is returned to the RIPE NCC and that will not be returned to the IANA but re-issued by the RIPE NCC itself. 1. Any address space that is returned to the RIPE NCC will be covered by the same rules as the address space intended in clause 1. 2. Minimum allocation sizes for the relevant /8 blocks will be updated if necessary 5. Insufficient address space In case an allocation of a single /22 as per clause 1 can no longer be made, multiple allocations up to an equivalent of a /22 in address space will be made to fulfill a request. Kind Regards, Sala On Sun, Sep 16, 2012 at 5:31 AM, Avri Doria <avri@acm.org> wrote:
Hi,
Not to mention all of the legacy addresses (almost half of all IPv4 addresses) that are not yet really redistributable because the rules restrict the ways in which they may be redistributed.
avri
On 14 Sep 2012, at 23:58, McTim wrote:
Except this does not mean "empty" it means ~16 Million left (one /8).
-- Cheers,
McTim "A name indicates what we seek. An address indicates where it is. A route indicates how we get there." Jon Postel
On Fri, Sep 14, 2012 at 11:21 PM, Carlton Samuels <carlton.samuels@gmail.com> wrote:
RIPE says the cupboard is empty on them now....
http://arstechnica.com/information-technology/2012/09/europe-officially-runs...)
- Carlton
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