On Fri, Nov 21, 2025 at 10:11 AM, Luigi Iannone <[email protected]> wrote:

> P.S.
> You may consider as well to take care of the idnits: https://author-tools.
> ietf.org/api/idnits?url=https://www.ietf.org/archive/id/
> draft-ietf-intarea-v4-via-v6-04.txt
>


Thank you — I have addressed most of these in the editor copy.

The ones which I did not are related to:

== There are 6 instances of lines with non-RFC6890-compliant IPv4 addresses
     in the document.  If these are example addresses, they should be changed.

I did not address these, as they are only in the "# Implementation Status (
This section to be removed before publication. )" section.



> L.
>
> On 21 Nov 2025, at 14:43, Luigi Iannone <[email protected]> wrote:
>
> Hi Juliusz,
>
> Thanks for the update.
>
> On 20 Nov 2025, at 13:56, Juliusz Chroboczek <[email protected]> wrote:
>
> I did read this document as part of my shepherding.
>
> Very well written and to the point. Thank you.
>
>
> Thanks, Luigi.
>
> I have a couple of nits that I put hereafter, marked with [LI].
>
>
> I've just published -04, which includes your changes except the following
> one:
>
>  Resolution may be recursive: the next-hop may itself be a prefix that
>  requires further resolution to map to the outgoing interface and L2
>  address.  V4-via-v6 routing does not prevent recursive resolution.
>
>
> [LI] Does this include any form of recursion or just v4 -> v6 -> v6 …..
> etc ?
> Can you clarify?
>
>
> Actually my point was about clearly stating that once you are in the ipv6
> domain you stay in ipv6.
> But at the end of the day since this document is about v4-via-v6 it should
> be ok the way it is stated now.
>
>

Thank you.


>
> Since we only define v4-via-v6, once you're in v6 land you stay there.  If
> we were to ever define v6-via-v4 (which I'm not advocating), then you
> could in principle alternate between the two domains, which would likely
> lead to an increase in nervous breakdowns among network administrators.
>
> I'm not too keen on expanding on this statement, since I have no
> operational experience with recursive v4-via-v6, and I'm afraid I'll say
> something wrong.  So please let me take the low-risk path of not saying
> anything more about recursion, at least until we get some operational
> experience with recursion together with v4-via-v6.
>
> Thanks again,
>
> -- Juliusz
>
>
>
> The following comment in section 4 has not been addressed.
>
>
>  Routers implementing the mechanism described in this document do not
>  need to have any IPv4 addresses assigned to any of their interfaces,
>  and RFC 1812 does not specify what happens if no router-id has been
>
>
> [LI] Any reason why “RFC 1812” is not in brackets?
> Any reason not evident to me?
>
>
Nope, just an oversight; thank you for catching it.

W


> Thanks
>
> L.
>
>
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