While RFC 4001 really didn't need to extend the zone index to IPv4, the
conversation also pertains to IPv6 address types. At least RFC 4001 got it
right by not making the zone index part of the default types and defining ipv4z
and ipv6z.
Thanks,
Acee
On 4/14/22, 10:04 AM, "Lsr on behalf of Martin Björklund"
<lsr-boun...@ietf.org on behalf of mbj+i...@4668.se> wrote:
I thought the discussion was only about ipv4?
/martin
Jürgen Schönwälder <j.schoenwael...@jacobs-university.de> wrote:
> On Thu, Apr 14, 2022 at 03:23:31PM +0200, Martin Björklund wrote:
> > Hi,
> >
> > First of all, I agree that if we were to design this from scratch, I
> > think we should have a type for just an ip address, and use a second
> > leaf for the zone (or interface).
> >
>
> The notation 'fe80::4d9:ff04:4fa6:7980%en0' is widely supported in
> application space. The IPv6 working group has a recurring debate on
> the usage of zoned IPv6 address in URLs [1], where the debate is about
> the question whether the % needs to be escaped or not. I do not know
> where the latest iteration stopped, but details can be found in RFC
> 6874 and draft-carpenter-6man-rfc6874bis-03.
>
> Philip Homburg's RIPE Labs note [2] might also be an interesting
> read. According to this, getaddrinfo() actually deals with zoned
> addresses (and hence even data model implementation that pass data to
> getaddrinfo() to obtain socket addresses may do the right thing.)
>
> My view is that down in the network layer models, you often know the
> interface by context and ipv6-address-no-zone is sufficient. If you go
> to application space, you really want "ipv6-address-with-zone" by
> default in order to support link-local addresses.
>
> /js
>
> [1] http://[fe80::4d9:ff04:4fa6:7980%en0]/
>
> [2]
https://labs.ripe.net/author/philip_homburg/whats-the-deal-with-ipv6-link-local-addresses/
>
> --
> Jürgen Schönwälder Jacobs University Bremen gGmbH
> Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany
> Fax: +49 421 200 3103 <https://www.jacobs-university.de/>
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