From mboxrd@z Thu Jan  1 00:00:00 1970
From: Florian Westphal <fw@strlen.de>
Subject: Re: [[NET-NEXT]] Added dump function to recognise rpl extension
 header option(63)
Date: Thu, 4 May 2017 14:33:37 +0200
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Cc: Andreas Bardoutsos <bardoutsos@ceid.upatras.gr>,
        netdev <netdev@vger.kernel.org>,
        Michael Richardson <mcr@sandelman.ca>,
        "linux-wpan@vger.kernel.org" <linux-wpan@vger.kernel.org>
To: Stefan Schmidt <stefan@osg.samsung.com>
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Stefan Schmidt <stefan@osg.samsung.com> wrote:
> ipv6: ext_header: add function to handle RPL option 0x63

But its not handled, is it?

The kernel tosses it because the RPL option/RFC says so
('nodes that do not understand this option on a received
 packet MUST discard the packet.').