netdev - Re: fe80::/64 route missing on GRE tunnels

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Message-ID: <20140217101730.GC32630@sesse.net>
Date:	Mon, 17 Feb 2014 11:17:30 +0100
From:	"Steinar H. Gunderson" <sesse@...fundet.no>
To:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
Cc:	netdev@...r.kernel.org, itk-intern@...fundet.no,
	Hannes Frederic Sowa <hannes@...essinduktion.org>
Subject: Re: fe80::/64 route missing on GRE tunnels

On Mon, Feb 17, 2014 at 10:59:38AM +0100, Nicolas Dichtel wrote:
>> It is added (ip -6 addr add fe80::1 dev foo), but it doesn't help without the
>> /64 being present.
> With 'ip -6 addr add fe80::1/64 dev foo', the link local route will be added.

Possible, but you're still breaking userspace. You could argue the tunnel
setup system in question should have added a /64 in the first place, but it
is deployed at a number of locations and changing all of them is not trivial.

/* Steinar */
-- 
ITK-pang
http://www.sesse.net/
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