On 15 July 2021, the ARIN Advisory Council (AC) accepted "ARIN-prop-298: 
Private AS Number and Unique Routing Policy Clarifications" as a Draft Policy.

 

Draft Policy ARIN-2021-3 is below and can be found at:

 

https://www.arin.net/participate/policy/drafts/2021_3/ 

 

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:

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

Senior Policy Analyst

American Registry for Internet Numbers (ARIN)

 

 

 

Draft Policy ARIN-2021-3: Private AS Number and Unique Routing Policy 
Clarifications 

 

Problem Statement:

 

At ARIN 47, staff identified three points of potential confusion with current 
text in NRPM Section 5: AS Numbers.

 

1. “Sites that do not require a unique AS Number should use one or more of the 
AS Numbers reserved for private use.” Some customers are not aware that their 
need for a unique AS Number depends upon their need (or lack thereof) to 
utilize the AS Number on the public Internet.

 

2. “In order to be assigned an AS Number, each requesting organization must 
provide ARIN with verification that it has one of the following…A unique 
routing policy (its policy differs from its border gateway peers)…A multihomed 
site.” Few customers qualify for an AS Number under the “unique routing policy” 
requirement, specifically because they aren’t aware of what “unique routing 
policy” applies to.

 

3. “AS Numbers are issued based on current need. An organization should request 
an AS Number only when it is already multihomed or will immediately become 
multihomed.” All ARIN delegations are based on current needs, and some 
customers aren’t aware they need network plans when they request an AS Number. 
Additionally, clarification that some organizations may have a unique need for 
an AS Number outside of utilizing a unique routing policy, such as BGP.

 

Policy statement:

 

In Section 5 -

 

Replace

 

“Sites that do not require a unique AS Number should use one or more of the AS 
Numbers reserved for private use.”

 

with

 

“Private ASNs should be used only when there is no plan to use them on the 
public Internet.”

 

Replace

 

“1. A unique routing policy (its policy differs from its border gateway peers) 
2. A multihomed site.”

 

with

 

“1. A plan to connect their network using a unique routing policy, such as 
Border Gateway Protocol (BGP) 2. A network requiring routing policies to be 
deployed which are unique only to that network”

 

Replace

 

“AS Numbers are issued based on current need. An organization should request an 
AS Number only when it is already multihomed or will immediately become 
multihomed.”

 

with

 

“AS Numbers should be requested when an organization has network plans ready 
and is either planning to use a unique routing policy (such as BGP) or has a 
unique need for an AS Number.”

 

Timetable for implementation: Immediate

 

 

 

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