[ppml] Proposed Policy: Capturing Originations in Templates

Member Services memsvcs at arin.net
Thu Feb 9 18:36:17 EST 2006

ARIN received the following proposed policy. In accordance with the ARIN
Internet Resource Policy Evaluation Process, the proposal is being
posted to the ARIN Public Policy Mailing List and being placed on ARIN's

The ARIN Advisory Council (AC) will review the proposal and within ten
working days may decide to:
1)  Support the proposal as is,
2)  Work with the author to clarify, divide or combine one or more
policy proposals, or
3)  Not support the policy proposal.

If the AC supports the proposal or reaches an agreement to work with the
author, then the proposal will be posted as a formal policy proposal to
the Public Policy Mailing List and it will be presented at the Public
Policy Meeting. If the AC does not support the proposal, then the author
may elect to use the petition process to advance the proposal. If the
author elects not to petition or the petition fails, then the proposed
policy will be considered closed.

The ARIN Internet Resource Policy Evaluation Process can be found at:

Mailing list subscription information can be found at:


Member Services
American Registry for Internet Numbers (ARIN)

### * ###

Policy Proposal Name: Capturing Originations in Templates

Author: Sandra Murphy

Proposal type: new

Policy term: permanent

Policy statement:

ARIN will collect an optional field in all IPv4 and IPv6 address block
transactions (allocation and assignment requests, reallocation and
reassignment actions, transfer and experimental requests).  This
additional field will be used to record a list of the ASes that the user
permits to originate address prefixes within the address block.

ARIN will produce a collection of the mappings from address blocks to
ASes permitted to originate that address block, The collection will
consist of a list where each entry will consist, at a minimum, of
an address block, a list of AS numbers, and a tag indicating the type of
delegation of the address block.  This collection will be produced at
least daily.

ARIN will make the collected mappings from address blocks to AS numbers
available for bulk transfer in one or more formats chosen at its own
discretion, informed by the community's current needs.  This data will
not be subject to any redistribution restrictions -- it may be
republished or repackaged it any form.  Should ARIN choose to use WHOIS
bulk transfer as the bulk form of data access required by this
paragraph, the address block to AS mappings will not be subject to any
redistribution restrictions, but the remainder of the WHOIS data will
remain subject to the terms of the then-current AUP regarding bulk
access to WHOIS data.

ARIN may also make the collected or individual mappings from address
blocks to AS numbers available in other forms, possibly query
services, chosen at its own discretion, informed by the community's
current needs.  ARIN may require agreement to an acceptable use policy
for access to the data in these forms.


Origination of prefixes by ASes that have no authority for the
origination is a recurring problem in the Internet routing system. A
list of authorized prefix originations would be beneficial to operators in
	constructing routing filter lists to counter bogus
	interacting with customers requesting routing of a prefix, and
	diagnosing routing problems.

A list of authorized prefix originations is also the necessary first
step for any known solution for securing the routing system.

Prefix originations can be stored in routing registry RPSL route
objects.  However, the authority for addresses and for ASes belongs to
the RIRs.  There is presently no mechanism to translate ARIN's authority
for number resources to an IRR.  Furthermore, operators have been less
than diligent in creating and maintaining route objects. Capturing the
prefix origination authorization in number resource registrations with
ARIN has two main goals:
	benefit from the scrutiny with which ARIN verifies initial
		requests and authenticates subsequent transactions, and
	inherit the operators' self-discipline in completing resource
		requests and transactions.
As an additional benefit, this could take a step toward populating the
IRR with data known to be accurate.

The intended use of this data means that both query for individual
entries and bulk access to a list of the collected entries, without
restriction on redistribution, is required.  This policy requires that
the additional data be provided through the usual whois query service
and some bulk access service that has no restrictions.  It permits ARIN
to provide the bulk access through the existing bulk whois service if
the new additional data is not subject to the bulk whois AUP
restrictions.  The policy does not limit ARIN to providing only those
two services (whois query and unrestricted bulk access); other
additional services may be developed at ARIN's discretion.

It is expected that entries in the list of collected entries will
include at a minimum the present NetRange and NetType attributes, with a
new attribute, perhaps named OriginatingASList, for the list of
permitted originating ASes.

This policy will presumably be incorporated into NPRM section 3.4.

Timetable for implementation: Within sixty (60) days of approval.

More information about the ARIN-PPML mailing list