Re: address fragmentation

[Lu Heng via NANOG <nanog () lists nanog org>]

Hi Brandon:

The difference is control.

If you lease to a different network, or give an IP to a server you rented
to a customer, yes, in both cases you will have customer consensus to
renumber them, but since leasing at minimum /24, but most hosting customer
are in single IP, the difficulty and challenge are quite different.

The discussion I like to see if there will be an best operation practice in
assigning those IPs to avoid fragmentation in the long run.

On Thu, 3 Jul 2025 at 18:00, Brandon Butterworth via NANOG <
nanog () lists nanog org> wrote:

> On 03/07/2025 08:49:07, "Lu Heng via NANOG" <nanog () lists nanog org>
> wrote
> > With the increasing prevalence of address‐space leasing—effectively
> > operating as “mini‐RIRs” for IP distribution—fragmentation of address
> > blocks has become a critical concern.
>
> How is that different from a regular provider assigning space
> (a LIR in RIPE terms)? They just need to keep the RIR data current
> for all their assignments, they are in no sense a mini RIR, that
> is a different function.
>
> As they are just renting out space that otherwise would have been
> allocated to a LIR then they should operate as a LIR.
>
> brandon
>
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Kind regards.
Lu
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