Re: [v6ops] Benjamin Kaduk's No Objection on draft-ietf-v6ops-cpe-slaac-renum-05: (with COMMENT)

"Bernie Volz (volz)" <volz@cisco.com> Thu, 28 January 2021 01:15 UTC

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From: "Bernie Volz (volz)" <volz@cisco.com>
To: Fernando Gont <fgont@si6networks.com>
CC: Benjamin Kaduk <kaduk@mit.edu>, The IESG <iesg@ietf.org>, "draft-ietf-v6ops-cpe-slaac-renum@ietf.org" <draft-ietf-v6ops-cpe-slaac-renum@ietf.org>, "v6ops-chairs@ietf.org" <v6ops-chairs@ietf.org>, "v6ops@ietf.org" <v6ops@ietf.org>, Owen DeLong <owen@delong.com>
Thread-Topic: Benjamin Kaduk's No Objection on draft-ietf-v6ops-cpe-slaac-renum-05: (with COMMENT)
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Date: Thu, 28 Jan 2021 01:15:05 +0000
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References: <160325603610.17357.6914550111489766157@ietfa.amsl.com> <cf025acf-5192-d9a3-a727-8716d9d7b232@si6networks.com>, <4fbc24c6-ef7b-5a99-3d04-69e6c9c3c90a@si6networks.com>
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Subject: Re: [v6ops] Benjamin Kaduk's No Objection on draft-ietf-v6ops-cpe-slaac-renum-05: (with COMMENT)
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See comments below (BV>).

- Bernie (from iPad)

> On Jan 27, 2021, at 5:53 PM, Fernando Gont <fgont@si6networks.com> wrote:
> 
> Hi, Ben,
> 
> On 27/1/21 18:21, Fernando Gont wrote:
> [....]
>>>        *  In Replies to DHCPv6 Request, Renew, Rebind messages, send 0
>>>           lifetimes for any address assignments or prefix delegations for
>>>           the deprecated prefixes for at least the valid-lifetime
>>>           previously employed for them, or for a period of ND_VALID_LIMIT
>>>           if the recommended lifetimes from Section 3.2 are employed.
>>> 
>>> Is it deliberate to say nothing at all about Advertise messages (which
>>> are sent in response to Solicit messages, not any of the listed ones)?
>> I will double-check this one with my co-authors.
> 
> Our plan is to add this note to the RATIONALE of Section 3.3:
> 
>   The above text does not include responses to DHCPv6 Solicit messages,
BV> A Solicit with Rapid Commit may return a Reply. So this only applies to Advertise responses.
>   since Section 18.3.9 of RFC8415 requires that a DHCPv6 server
>   that is not going to assign an address or delegated prefix received
>   as a hint in the Solicit message MUST NOT include that address or
>   delegated prefix in the Advertise message. Additionally, any
>   subsequent Solicit messages will trigger the response specified in
BV> There are usually no “subsequent” Solicits. There is a subsequent Request.
>   this section, and therefore cause the address or prefix to be
>   deprecated.
> 
> Would this address your comment?
> 
> Thanks,
> -- 
> Fernando Gont
> SI6 Networks
> e-mail: fgont@si6networks.com
> PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492
> 
> 
> 
>