[arin-ppml] Recommended Draft Policy ARIN-2019-3: Update 4.10 – IPv6 Deployment Block
ARIN
info at arin.net
Tue Aug 20 14:56:36 EDT 2019
On 15 August 2019, the ARIN Advisory Council (AC) advanced the following
Draft Policy to Recommended Draft Policy status:
* ARIN-2019-3: Update 4.10 – IPv6 Deployment Block
The text of the Recommended Draft Policy is below, and may also be found at:
https://www.arin.net/participate/policy/drafts/2019_3/
You are encouraged to discuss all Recommended Draft Policies on PPML
prior to their presentation at the next ARIN Public Policy Consultation
(PPC). PPML and PPC discussions are invaluable to the AC when
determining community consensus.
The PDP can be found at:
https://www.arin.net/participate/policy/pdp/
Draft Policies and Proposals under discussion can be found at:
https://www.arin.net/participate/policy/drafts/
Regards,
Sean Hopkins
Policy Analyst
American Registry for Internet Numbers
Recommended Draft Policy ARIN-2019-3: Update 4.10 – IPv6 Deployment Block
AC Assessment of Conformance with the Principles of Internet Number
Resource Policy:
Because it will better enable fair number distribution, provide improved
clarity and compatibility with existing systems, is technically sound,
has received the support of the community, and there are no material
legal issues related to implementation, the ARIN Advisory Council moved
draft policy 2019-3 to recommended draft status.
Problem Statement:
ARIN staff has noted that the current 4.10 policy is causing problems in
its implementation.
The current policy specifies a /28 minimum. However, ARIN can only
allocated a /24 as its minimum size. ARIN’s current tools only support a
minimum of /24 for reverse DNS.
The current RPKI landscape is also an impediment to using smaller block
sizes. Furthermore, a /28 practically is unroutable, so an organization
if they were to receive a /28 would be unable to functionally
interoperate with most IPv4 end points, for applications which were
noted examples in the original policy. (At the time of writing the
original policy, it was hoped that by creating a policy with a smaller
block size other RIRs and network operators would embrace the routing of
blocks smaller than a /24.)
Updating ARINs tools to allow smaller than a /24 for reverse DNS (such
as RFC2317) would likely be a large cost compared value received by the
community. This value is further diminished because the purpose of an
IPv4 block to facilitate IPv6 deployment is that it be routable to the
rest of the IPv4 Internet.
This policy attempts to address these issues, by raising the minimum
size to a /24 and limits total amount an organization can receive to a
/21. It also removes the requirement for return and renumber, since that
was primarily added to allow organizations to obtain larger blocks if
that was necessary. The policy also clarifies the utilization
requirements by placing them directly in this section rather than a
reference to the utilization requirements of end users.
Policy Statement:
Replace current 4.10 with the following updated section
4.10 Dedicated IPv4 block to facilitate IPv6 Deployment
ARIN shall allocate a contiguous /10 from its last /8 IPv4 allocation
from IANA. This IPv4 block will be set aside and dedicated to facilitate
IPv6 deployment. Allocations and assignments from this block must be
justified by immediate IPv6 deployment requirements. Examples of such
needs include: IPv4 addresses for key dual stack DNS servers, and NAT-PT
or NAT464 translators. ARIN staff will use their discretion when
evaluating justifications.
This block will be subject to a minimum and maximum size allocation of
/24. ARIN should use sparse allocation when possible within that /10 block.
In order to receive an allocation or assignment under this policy:
- the applicant may not have received resources under this policy in the
preceding six months and cannot receive more than a /21 under this
policy section;
- previous allocations/assignments under this policy must continue to
meet the justification requirements of this policy;
- previous allocations/assignments under this policy must be utilized to
at least 80% to obtain an additional allocation or assignment;
- the applicant must demonstrate that no other allocations or
assignments will meet this need.
Comments:
Timetable for implementation: Immediate
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