You don't, you wastefully assign a /24 to every unique thing that you think needs an internal management IP block (even if there's 5 things that answer pings there), and decide it's too much work to renumber things. Easy for a big ISP that's also acquired many small/mid-sized ISPs to run out of v4 private IP space that way.

On Wed, Feb 10, 2021 at 4:05 AM Owen DeLong <owen@delong.com> wrote:

Please explain to me how you uniquely number 40M endpoints with RFC-1918 without running out of
addresses and without creating partitioned networks.

If you can’t, then I’m not the one making excuses.

Owen

> On Feb 9, 2021, at 15:44 , Izaac <izaac@setec.org> wrote:
>
> On Fri, Feb 05, 2021 at 02:36:57PM -0800, Owen DeLong wrote:
>> it is definitely possible to run out of RFC-1918 space with scale and no incompetence.
>
> No, it isn't. It's the year 2021. Stop making excuses.
>
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