[Lista ArNOG] Mitigating the effects of SLAAC renumbering events (draft-ietf-6man-slaac-renum)

[Carriers]

Hola estimados.  Les avisamos. Que los mails que. Envìan  llegan con. Errores de tipeo.  Estimades, Amiguis. 
les. avisames. Porque. No sé entiende
Saludes  

⁣       
Sebastián Bergagna           
Website: https://dainus.net
Email:sebastian en dainus.net
Tel: +54 0800 345 3030 ext 9767​​

En 31 de ago. de 2022 07:47, en 07:47, Fernando Gont <fgont en si6networks.com> escribió:
>Estimades,
>
>Nos queda esta ultima pieza (del rompecabezas) para evitar que Uds.,
>yo, 
>sus usuarios, y todos nuestros amiguis, decidan deshbilitar IPv6 ante
>la 
>recurrencia de los prolemas relacionados con la rotacion de prefios de 
>SLAAC.
>
>En tal sentido, tengo algo que compatirles:
>
>
>Folks,
>
>We have been discussing the potential problems associated with SLAAC 
>renumbering events for a while now -- one of the most common cases
>being 
>ISPs rotating home prefixes, and your devices ending up with 
>stale/invalid addresses.
>
>We have done quite a bit of work already:
>
>   * Problem statement: https://datatracker.ietf.org/doc/html/rfc8978
>   * CPE recommendations: https://datatracker.ietf.org/doc/html/rfc9096
>
>But there's still some work to do to address this issue: The last 
>remaining it is to improve SLAAC such that hosts can more gracefully 
>deal with this renumbering events.
>
>In that light, IETF's 6man has been working on this document: 
>https://www.ietf.org/archive/id/draft-ietf-6man-slaac-renum-04.txt
>
>And we have proposed a simple algorithm for SLAAC (an extension, if you
>
>wish) that can easily help, as follows:
>
>     If you (host) receive an RA that contains options, but not all
>     of the previously-received options/information, simply send a
>    unicast RS to the local-router, to verify/refresh that such missing
>    information is still valid. If the information is stale, get rid of
>     it.
>
>I presented this algorithm at the last IETF meeting 
>(https://youtu.be/eKEizC8xhhM?t=1308).
>
>(You may find the slides here: 
>https://datatracker.ietf.org/meeting/114/materials/slides-114-6man-improving-the-robustness-of-stateless-address-autoconfiguration-slaac-to-flash-renumbering-events-00)
>
>Finally, I've sent draft text for the specification of the algorithm 
>here: 
>https://mailarchive.ietf.org/arch/msg/ipv6/KD_Vpqg0NmkVXOQntVTOMlWHWwA/
>
>We would be super thankful if you could take a look at the draft text 
>(i.e., 
>https://mailarchive.ietf.org/arch/msg/ipv6/KD_Vpqg0NmkVXOQntVTOMlWHWwA/)
>
>and provide feedback/comments.
>
>If you can post/comment on the 6man wg mailing list 
>(https://www.ietf.org/mailman/listinfo/ipv6), that´d be fabulous.
>But we'll appreciate your feedback off-list, on this list, etc. (that'd
>
>still be great ;-) )
>
>Thanks in advance!
>
>Regards,
>-- 
>Fernando Gont
>SI6 Networks
>e-mail: fgont en si6networks.com
>PGP Fingerprint: F242 FF0E A804 AF81 EB10 2F07 7CA1 321D 663B B494
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