Re: [spring] Request to close the LC and move forward//RE: WGLC - draft-ietf-spring-srv6-network-programming

[Dirk Steinberg <[e-mail]>]

On Thu, Feb 27, 2020 at 1:45 AM Fernando Gont <[e-mail]> wrote:

> Hello, Eric,
>
> On 26/2/20 20:18, Eric Vyncke (evyncke) wrote:
> > Writing this without any hat,
> >
> > Please note that on the logical side, it still have to be "proven" that
> this idea is strictly forbidden by RFC 8200.
>
> Here's the proof part:
>
> 1) Isn't IPv6 end to end?
>
> 2) How do core components of IPv6, such as AH and PMTUD work in the
> present of intermediate nodes that can add and/or remove arbitrary
> extension headers?
>
> It should be clear from the above that EH insertion/deletion is forbidden.
>

As I already explained to you this is not true.
The wording of RFC8200 clearly allows this.
The node addresses by the DA of the packet can do this.
I understand that you would like to modify the wording of
RFC8200 to make your point true but it simply is not.
Repeating a false statement does not make it true.

Cheers
Dirk


> Since this topic has been brought up again and again, I have submitted
> an errata to RFC8200 which clarifies the intended behaviour:
> * https://www.rfc-editor.org/errata/eid5933
>
> (that's what Errata's are for, after all... and it should be clear that
> the EH processing part, overall, needs improvements).
>
> Thanks!
>
> Cheers,
> --
> Fernando Gont
> SI6 Networks
> e-mail: [e-mail]
> PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492
>
>
>
>
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