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Re: Removal of destination options that precede a routing header

Jim Guichard <jguichard1966@gmail.com> Tue, 26 May 2020 14:28 UTC

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From: Jim Guichard <jguichard1966@gmail.com>
Date: Tue, 26 May 2020 10:27:40 -0400
Message-ID: <CAJn5=Kfhd+OvPP7JrNAyZesBehoMuW2C7c6WhtWCBjaiciVzMw@mail.gmail.com>
Subject: Re: Removal of destination options that precede a routing header
To: Sander Steffann <sander@steffann.nl>
Cc: 6man <6man@ietf.org>, James Guichard <james.n.guichard@futurewei.com>
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I’m not so sure about that as the original packet is encapsulated in an
outer IPv6 header.

On Tue, May 26, 2020 at 10:24 AM Sander Steffann <sander@steffann.nl> wrote:

> Hi,
>
> > Note 3 is for destination options after a routing header. As such the
> destination option is processed after the routing header and therefore the
> router is able to determine from the SRH that it is the final destination
> as segments left = 0. Presumably an implementation would at this point
> remove the routing header and the destination options and send the packet
> on its merry way.
>
> The header aren't removed. When there are no segments left the destination
> address is that of the final destination, which will get the full packet as
> sent by the sender with all the headers intact.
>
> Cheers,
> Sander
>
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