[arin-ppml] Clean up definition of LIR/ISP vs. end-user

Dani Roisman droisman at softlayer.com
Tue Apr 30 09:11:06 EDT 2013

| Date: Mon, 29 Apr 2013 14:50:01 -0700
| From: Scott Leibrand <scottleibrand at gmail.com>
| To: William Herrin <bill at herrin.us>
| Cc: ARIN-PPML List <arin-ppml at arin.net>
| Subject: Re: [arin-ppml] Clean up definition of LIR/ISP vs. end-user
| Message-ID:
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| YLmdT3VQ5fQuxyXYQgH0AGaBw at mail.gmail.com>
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| On Mon, Apr 29, 2013 at 2:31 PM, William Herrin <bill at herrin.us> wrote:
| > On Mon, Apr 29, 2013 at 4:41 PM, Scott Leibrand
| <scottleibrand at gmail.com>
| > wrote:
| > > I would propose that the primary difference between ISPs/LIRs vs.
| > end-users,
| > > for purposes of the NRPM, is whether an organization reassigns address
| > > blocks to third parties.  If an organization maintains full control of
| > all
| > > of the equipment on its network, and doesn't need to make any
| > reassignments
| > > to other organizations, then it can qualify as an end-user.  In
| > particular,
| > > an end user organization must be able to supply a full list of all the IP
| > > addresses in use on its network, and know what devices are using those
| > > addresses.
| >
| > Hi Scott,
| >
| > Keep it simple:
| >
| > 1. There is no LIR. Only ISP.  I get the distinction but it's
| > needlessly confusing for everybody who isn't steeped in ARIN policy.
| >
| I was considering a global search-and-replace of LIR with ISP.  If people
| think that'd be helpful, I'd be happy to include that change in the policy
| proposal.
| (FWIW, the term LIR is primarily used by some of the other RIRs, and the
| main reason it's in ARIN policy was that the IPv6 policy was originally a
| globally coordinated policy that used common language with all the other
| RIRs.  But we can change it if we feel like it.)

Here's the way I understand the history of these terms, and have explained to others why ARIN says "ISP" but the other RIRs say "LIR" and really mean the same thing:

ARIN policy is written with a North-American bias, where there are a very small number of countries, the language is primarily English, and the culture and manner of doing business on the Internet is fairly standard throughout the region.  ARIN typically assigns to two different types of members:
* end-user organizations = large companies, large content hosters who exclusively use the IPs on their equipment
* ISP organizations = network operators who then issue pieces of those IP allocations to their down-stream customers for use on customer-owned/operated equipment

The other RIR's service a larger number of countries, with diverse language sets and cultures, and thus the term "LIR" (local Internet registry) was used to describe the practice of end-users typically receiving IPs from providers "local" to them.

However, I've always thought of LIR/ISP as interchangeable terms, depending on who's policy you happen to be reading at the time.

My vote goes towards a global replacement of "ISP" in all ARIN documents with the term "LIR" in order to match the language used by the other 4 RIRs.  I would then support an brief statement early in the NRPM which explains that "The term LIR has replaced the term ISP formerly used in ARIN policy documents in order to simplify the global understanding of RIR policy documents.  The definition of LIR exactly matches the previous definition of ISP for the purpose of the ARIN NRPM."  (well, something like that, you get the point).

Dani Roisman

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