[arin-ppml] Revised: Draft Policy ARIN-2017-5: Equalization of Assignment Registration requirements between IPv4 and IPv6

Leif Sawyer lsawyer at gci.com
Thu Aug 17 13:29:31 EDT 2017

Thanks for the feedback, David.

I've added the fix for, since we're already in the section.

I've also modified the text for as well, because I think your suggesting is a little cleaner.

I'm not sure what the point of is -  you're just reiterating
That said, we could potentially clean up by extending "static IPv6 assignment"
to  "static IPv6 assignment, or allocation," - or something similar.

Which also brings to mind the question:  LIR or ISP?   Both are in use in 6.5....

From: ARIN-PPML [arin-ppml-bounces at arin.net] on behalf of David Farmer [farmer at umn.edu]
Sent: Thursday, August 17, 2017 8:53 AM
To: hostmaster at uneedus.com
Cc: arin-ppml at arin.net
Subject: Re: [arin-ppml] Revised: Draft Policy ARIN-2017-5: Equalization of Assignment Registration requirements between IPv4 and IPv6

[External Email]

Here is a slightly different formulation to consider. I refactored the title a little, and based the phrasing on other parts of section 6.5.5 Registration Requested by Recipient

If requested by the downstream recipient of a block, each static IPv6 assignment containing a /64 or more addresses, shall be registered, as described in section

I'd like us to think about adding an additional section, based on previous discussions. Re-allocation to ISPs

Each IPv6 re-allocation to a downstream ISP, regardless of size, intended for further assignment by the downstream ISP's to it's customers, shall be registered, as described in section

Also, in Section there is a reference to section I think this is a cut and past error, I think the reference should be to Please, compare sections and with sections and and I think it is obvious what happened.


On Wed, Aug 16, 2017 at 6:10 AM, <hostmaster at uneedus.com<mailto:hostmaster at uneedus.com>> wrote:
I am in favor of the draft, with or without the changes to make it clearer.

I suggest the following language for clarity:

3) Add new section "Downstream Registration Requests" to the NRPM that reads "If the downstream recipient of a static assignment of /64 or more addresses requests publishing of that static assignment in ARIN's registration database, the ISP must register that static assignment."

Since "static assignment" is the term in this section, not netblock, I suggest using this term instead of "netblock".  "Of any size" is not needed, as the language would require the ISP to register in total whatever size the ISP has assigned to the downstream in the ARIN database if requested by the downstream recipient, as long as it was /64 or more.

This language would also prevent requests to register only part of an assignment. I think this language works in making the intent of the new section more clear.

Albert Erdmann
Network Administrator
Paradise On Line Inc.

On Tue, 15 Aug 2017, John Santos wrote:

I think that the "/64 or more addresses" and the "regardless of size" are meant to convey that any netblock between a /64 and a /48 can and should be registered if the recipient requests it, even if the block is smaller than the /47 which would make it mandatory.  Perhaps there is better wording that would make this clearer.

Three ranges:

1. smaller than /64:  shouldn't be issued, can't be registered.
2. /64 through /48: register at recipient's request
3. /47 or larger: must be registered

I agree on dynamic assignments

Otherwise, I think this is a much clearer and better update to the proposed policy, and can't find any other reason not to support it.  (I.E. this is a tentative vote FOR, if there is such a thing.)

On 8/15/2017 3:59 PM, David Farmer wrote:
I support what I think is the intent, but I have language/editorial nits;

1. In 3) below; Which is it "a /64 or more addresses" or "regardless of size" that requires registration?  I think logically we need one or the other, or some qualification on "regardless of size" statement.  I think it is a good idea to not require registration of less than a /64.  But the current language seems contradictory, and therefore confusing, my recommendation is delete "regardless of size", from the sentence and leaving "a /64 or more addresses".  I pretty sure we don't want people having an expectation that they can request the registration of "their" /128 address.

2. Also in 3) below; It would seem to require even dynamic assignments be registered if requested, I don't think that is our intent either, section starts with "Each static IPv6 assignment containing", this needs a similar qualification.

Also, I'm fine with the deltas in the policy statement but it would be helpful to see the final resulting policy block, maybe in a separate email so we can all see how the result reads.

Thanks, I think we are getting close, maybe one or two more turns of the crank.

On Tue, Aug 15, 2017 at 12:06 PM, ARIN <info at arin.net<mailto:info at arin.net> <mailto:info at arin.net<mailto:info at arin.net>>> wrote:

    The following has been revised:

    * Draft Policy ARIN-2017-5: Equalization of Assignment
    Registration requirements between IPv4 and IPv6

    Revised text is below and can be found at:

    You are encouraged to discuss all Draft Policies on PPML. The AC
    will evaluate the discussion in order to assess the conformance of
    this draft policy with ARIN's Principles of Internet number
    resource policy as stated in the Policy Development Process (PDP).
    Specifically, these principles are:

    * Enabling Fair and Impartial Number Resource Administration
    * Technically Sound
    * Supported by the Community

    The PDP can be found at:

    Draft Policies and Proposals under discussion can be found at:


    Sean Hopkins
    Policy Analyst
    American Registry for Internet Numbers (ARIN)

    Problem Statement:

    Current ARIN policy has different WHOIS directory registration
    requirements for IPv4 vs IPv6 address assignments. IPv4
    registration is triggered for an assignment of any address block
    equal to or greater than a /29 (i.e., eight IPv4 addresses). In
    the case of IPv6, registration occurs for an assignment of any
    block equal to or greater than a /64, which constitutes one entire
    IPv6 subnet and is the minimum block size for an allocation. Accordingly, there is a significant disparity between IPv4 and
    IPv6 WHOIS registration thresholds in the case of assignments,
    resulting in more work in the case of IPv6 than is the case for
    IPv4. There is no technical or policy rationale for the disparity,
    which could serve as a deterrent to more rapid IPv6 adoption. The
    purpose of this proposal is to eliminate the disparity and
    corresponding adverse consequences.

    Policy statement:

    1) Alter section "Reassignment information" of the NRPM to
    strike "/64 or more addresses" and change to "/47 or more
    addresses, or subdelegation of any size that will be individually


    2) Alter section "Residential Customer Privacy" of the
    NRPM by deleting the phrase "holding /64 and larger blocks"


    3) Add new section "Downstream Registration Requests" to
    the NRPM that reads "If the downstream recipient of a netblock ( a
    /64 or more addresses) requests publishing in ARIN's registration
    database, the ISP must register the netblock, regardless of size."


    a.    Timetable for implementation: Policy should be adopted as
    soon as possible.

    b.    Anything else:

     Author Comments:

    IPv6 should not be more burdensome than the equivalent IPv4
    network size. Currently, assignments of /29 or more of IPv4 space
    (8 addresses) require registration. The greatest majority of ISP
    customers who have assignments of IPv4 space are of a single IPv4
    address which do not trigger any ARIN registration requirement
    when using IPv4. This is NOT true when these same exact customers
    use IPv6, as assignments of /64 or more of IPv6 space require
    registration. Beginning with RFC 3177, it has been standard
    practice to assign a minimum assignment of /64 to every customer
    end user site, and less is never used. This means that ALL IPv6
    assignments, including those customers that only use a single IPv4
    address must be registered with ARIN if they are given the minimum
    assignment of /64 of IPv6 space. This additional effort may
    prevent ISP's from giving IPv6 addresses because of the additional
    expense of registering those addresses with ARIN, which is not
    required for IPv4. The administrative burden of 100% customer
    registration of IPv6 customers is unreasonable, when such is not
    required for those customers receiving only IPv4 connections.

John Santos
Evans Griffiths & Hart, Inc.
781-861-0670 ext 539<tel:781-861-0670%20ext%20539>

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Networking & Telecommunication Services
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