Re: [IPv6] [Last-Call] Artart last call review of draft-ietf-6man-rfc6874bis-02

On Sun, Mar 26, 2023 at 6:01 PM Brian E Carpenter <
[email protected]> wrote:

> >
> >
> > It's not allowed in the original grammar. This is why the draft rewrites
> the "IP-literal" rule to allow for a zone identifier. I think the catch
> here is that the chosen delimiter is "%", and that causes problems for URI
> parsers that are not updated for this issue. You could use a character that
> would not have this problem, as Appendix A describes.
>
> But what is the operational or security problem? Again, the draft explains
> why a parsing error by a non-updated destination simply doesn't matter.
>

The issue is that software ignorant of dereferencing can't parse these. So,
you're not actually going to be able to paste an IPv6-with-zone address.
But, if you followed the grammar, it would work. That is what "uniform"
means, right?

All of the water-under-the-bridge stuff is fair too, but please treat the
issue up front.

thanks,
Rob

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