netdev - Re: [PATCH v2] ip6_tunnel: allow to change mode for the ip6tnl0

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Date:	Thu, 30 Oct 2014 16:09:36 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	alan@...an.info
Cc:	netdev@...r.kernel.org, edumazet@...gle.com
Subject: Re: [PATCH v2] ip6_tunnel: allow to change mode for the ip6tnl0

From: "Alexey Andriyanov" <alan@...an.info>
Date: Wed, 29 Oct 2014 10:54:52 +0300

> The fallback device is in ipv6 mode by default.
> The mode can not be changed in runtime, so there
> is no way to decapsulate ip4in6 packets coming from
> various sources without creating the specific tunnel
> ifaces for each peer.
> 
> This allows to update the fallback tunnel device, but only
> the mode could be changed. Usual command should work for the
> fallback device: `ip -6 tun change ip6tnl0 mode any`
> 
> The fallback device can not be hidden from the packet receiver
> as a regular tunnel, but there is no need for synchronization
> as long as we do single assignment.
> 
> Cc: David S. Miller <davem@...emloft.net>
> Cc: Eric Dumazet <edumazet@...gle.com>
> Signed-off-by: Alexey Andriyanov <alan@...an.info>

Applied to net-next, thanks.
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