On Thu, Dec 23, 2021 at 1:40 PM Nico Schottelius <nico.schottelius@ungleich.ch> wrote: [...]
ULA does not have a registry because it is highly improbable that there will be prefix clashes because the available space is so vast.
... if generated truly randomly and people would not tend towards using "feed", "f00d", "cafe" or other words [0] in their IPv6 networks, yes. However even if you check the original sixxs registry or our import of it or if you check the DN42 registry, both contain "not so random values".
In those cases where the network is managed but a basic error like this has been made there is little that can be done to save the organisation from its own people. There are plenty of web pages that will generate a prefix for you based on the process described in the RFC e.g. https://cd34.com/rfc4193/ along with lots of open sourced code to do the same. Also, as Jeroen noted [0] on 9 December, the SixXS ULA registry was intended as a joke and we can assume that a good number of the registrations in it were jokes, too. [...]
Who should pay and why would they do so?
For the who: individuals and organisations who think that everyone should have access to GUA.
And why would this commitment to fund a registry over multiple decades be considered reliable enough that the users who pay nothing should put their trust in it?
That is a very good question and the only correct answer I have at the moment is: time has to tell.
I think the IETF will need a more convincing argument if it is to register a /8 of IPv6 space to a speculative registry with an unproven business model. Regards, Leo [0] https://www.ripe.net/ripe/mail/archives/ipv6-wg/2021-December/003751.html