Re: [Snac] Relax the requirement on a single 'root' ULA prefix generated by stub router?

[Erik Auerswald <[e-mail]>]

Hi,

On Wed, Aug 09, 2023 at 11:06:23AM +0000, Esko Dijk wrote:
> One issue found during implementation is that snac-simple-02 requires
> a single ULA prefix as a 'root' to derive further ULA prefixes from
> for the stub network and the AIL.
> But in practice it may be desirable to use 2 ULA prefixes for these
> respective cases. The proposal is to relax the requirement to allow
> such use.
> 
> Issue is created here:
> https://github.com/ietf-wg-snac/draft-ietf-snac-simple/issues/31

Using a single ULA prefix may allow to implement the example procedure
from [RFC 6724 section 10.6.][1], specifically the following part:

  | Since ULAs are defined to have a /48 site prefix, an implementation
  | might choose to add such a row automatically on a machine with a ULA.

[1]: https://www.rfc-editor.org/rfc/rfc6724#section-10.6

My impression was that ULA generation in SNAC was intended for local IPv6
connectivity inside a site.  I might be worth it to provide compatibility
with existing specifications that cater to ULA use for IPv6 connectivity
inside a site.

Best regards,
Erik

P.S. I do not know of any implementation of RFC 6724 section 10.6.