ipv6only-flag-02 & Flags Expansion Option

David Farmer <farmer@umn.edu> Wed, 19 September 2018 19:34 UTC

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From: David Farmer <farmer@umn.edu>
Date: Wed, 19 Sep 2018 14:34:16 -0500
Message-ID: <CAN-Dau1wuzWWuevsGJZ_5w_mrZmSVLEsJDOw6LujGBWFS0t_0Q@mail.gmail.com>
Subject: ipv6only-flag-02 & Flags Expansion Option
To: Ole Troan <otroan@employees.org>
Cc: David Schinazi <dschinazi@apple.com>, Philip Homburg <pch-ipv6-ietf-5@u-1.phicoh.com>, 6man WG <ipv6@ietf.org>
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On Wed, Sep 19, 2018 at 2:02 PM, Ole Troan <otroan@employees.org> wrote:

> David,
>
> > This is not harmless. It costs us a bit from a limited pool,
>
> We have RFC5175 so this is hardly a scarce resource.
>

Do most IPv6 stacks actually implement the Flags Expansion Option in
section 4 of RFC5175?

Without the knowledge that most IPv6 stacks actually implement the Flags
Expansion Optio, I'd still characterize it as a limited resource.

Maybe we should use flag bit 9 for this purpose if we move it forward.

Thanks.


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