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Re: [v6ops] Suresh Krishnan's Yes on draft-ietf-v6ops-conditional-ras-06: (with COMMENT)

Jen Linkova <furry13@gmail.com> Mon, 20 August 2018 05:48 UTC

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From: Jen Linkova <furry13@gmail.com>
Date: Mon, 20 Aug 2018 15:48:23 +1000
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To: 神明達哉 <jinmei@wide.ad.jp>
Cc: Suresh Krishnan <suresh@kaloom.com>, Russ White <russ@riw.us>, draft-ietf-v6ops-conditional-ras@ietf.org, V6 Ops List <v6ops@ietf.org>, v6ops-chairs@ietf.org, The IESG <iesg@ietf.org>
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Subject: Re: [v6ops] Suresh Krishnan's Yes on draft-ietf-v6ops-conditional-ras-06: (with COMMENT)
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Hi Jinmei-san,

On Sat, Aug 11, 2018 at 3:28 AM 神明達哉 <jinmei@wide.ad.jp> wrote:
> > I've added a paragraph clarifying that we only modify preferred
> > lifetime and that RFC4862 does not
> > allow an RA with both preferred and valid lifetime for the prefix set
> > to 0 to invalidate the address completely:

> To be very accurate, it's still allowed if the RA is authenticated:

Oops, that's what happens when I'm trying to submit a new version in
hurry, just a few hours before disappearing for vacation...;( Yes, you
are absolutely right...Thanks for pointing this out! I was going to
add that text but forgot :(

The draft meant to say
"Actually it would not even be possible for unauthenticated RAs (which
is the most common deployment scenario) as Section 5.5.3 of [RFC4862]
prevents hosts from setting valid lifetime for addresses to zero
unless RAs are authenticated."

instead of

"Actually it would not even be possible as Section 5.5.3 of [RFC4862]
prevents hosts from setting valid lifetime for addresses to zero."

> (whether v6ops-conditional-ras should be this accurate is a different
> question, for which I don't have a strong opinion)

Well, I believe it should make the correct statement, so I'll update the text!

-- 
SY, Jen Linkova aka Furry

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