If LIR and end-user effectively becomes one and the same: what's that mean
for someone at home asking for a PIA /24 v4 block?

For v6, I see no problem of course. But v4? Would we want a seperate
ISP/End-user policy per-AFI?


--
Sent from my iPhone

On Sat, 27 Jun 2026 at 2:09 AM, Eric C. Landgraf <[email protected]> wrote:

> I would like to see the LIR and end-user provisions nearly merged. A
> large university like my own organization happens to sit in that grey
> area where it looks like an LIR or an end-user, depending on the
> meterstick you use. I would much prefer that organizations just have to
> justify how much space they intend to use, and justify that they should
> get space---obviously your average home-user doesn't need PI space.
>
> There are still many ambiguities for large campuses starting on their
> IPv6 journey: what is a "serving site" and how to create a reasonable
> network plan that allows aggregation. We don't need them also asking "Am
> I an LIR?"
>
>         Eric C. Landgraf
>         Virginia Tech
>
> On Jun 25 14:46, William Herrin wrote:
> > Howdy,
> >
> > I didn't see any feedback on the draft policy rewriting section 6.5,
> > so I want to step back and solicit your opinions on what ARIN's IPv6
> > policies should become. I'm going to ask some questions and break them
> > into separate message threads so that they can be followed separately
> > according to your interest.
> >
> >
> > The question for this thread is: Should we attempt to merge ISP and
> > end-user IPv6 address allocation policy?
> >
> >
> > Traditionally, long ago when the InterNIC Hostmaster ran IPv4 address
> > allocation, there was no distinction between ISPs and end users. If
> > you wanted IP addresses, you got them. If you wanted a lot of IP
> > addresses you had to explain why. Being an ISP was a good reason.
> > There were a number of other good reasons. There was no specific
> > category for ISPs.
> >
> > Around the time the InterNIC was divided up into ICANN and the RIRs,
> > there was another important event in Internet history: the EGP routing
> > table crisis. With the sudden public interest in the Internet in the
> > mid-'90s and the corresponding explosive growth, we nearly exhausted
> > the capacity of the backbone routing table. Through a heroic effort of
> > the standards bodies and the software and hardware developers at the
> > router vendors, we replaced Classful routing with CIDR and EGP with
> > BGP, averting the crisis with literally weeks to spare.
> >
> > Coming out of the crisis, the smart people in the know said: Never
> > again. We're going to give large IP address blocks to ISPs who will
> > consume one slot in the BGP table. To the maximum extent practical,
> > end users aren't going to have their own routes in the BGP table.
> >
> > This division between haves and have-nots was embedded deeply into
> > every RIR's address allocation policy.
> >
> > The last quarter century has been a slow but steady retreat from that
> > position. Efficient use of /19 became /20 and then dragged all the way
> > back to the original class C, /24 limit where we are today. No one
> > ever developed a satisfactory replacement for BGP multihoming, not
> > even with IPv6. And slicing a /24 out of ISP space for an end-user to
> > multihome turns out to have problems if you don't also disaggregate
> > the entire larger block in BGP. Which is a bad thing. So BGP
> > multihoming has become re-recognized as a proper reason for end users
> > to have their own IP addresses from ARIN. Even the ARIN fee schedule
> > and membership rights have been unified. The major remaining vestige
> > of the original division between ISP and end-user is the requirement
> > for ISPs to report their customer registrations with SWIP and their
> > ability to record those registrations as in-use. End-users
> > theoretically don't have downstream customer registrations to report
> > or record.
> >
> > This presents an opportunity. As we look at replacing the thick
> > language in the IPv6 policies, we can try to make the policy uniform:
> > the same fair policy for everybody, end users and ISPs both.
> >
> > What do you think? Would you like to take a stab at it, or do you
> > prefer that the ISP/end user division stay where it is? Your views are
> > respectfully requested.
> >
> > Regards,
> > Bill Herrin
> > _______________________________________________
> > ARIN-PPML
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