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Date:	Sat, 23 Apr 2016 15:09:16 +1000
From:	Simon Horman <simon.horman@...ronome.com>
To:	Thomas Graf <tgraf@...g.ch>
Cc:	Jiri Benc <jbenc@...hat.com>, netdev@...r.kernel.org,
	Pravin B Shelar <pshelar@...ira.com>
Subject: Re: [PATCH net 3/3] gre: receive also TEB packets for lwtunnels

On Sat, Apr 23, 2016 at 03:49:38AM +0200, Thomas Graf wrote:
> On 04/22/16 at 07:44pm, Jiri Benc wrote:
> > For ipgre interfaces in collect metadata mode, receive also traffic with
> > encapsulated Ethernet headers. The lwtunnel users are supposed to sort this
> > out correctly. This allows to have mixed Ethernet + L3-only traffic on the
> > same lwtunnel interface.
> > 
> > To keep backwards compatibility and prevent any surprises, gretap interfaces
> > have priority in receiving packets with Ethernet headers.
> 
> I may be missing some context. Is anyone using this already or is this
> preparing the stage for another user? It's not clear to me from the
> commit message.

Hi Thomas,

I'm not sure what use Jiri may have in mind but I plan to use
this to allow OvS to support packets without an Ethernet header to
be received from and sent to a GRE tunnel.

I am reasonably sure there are no existing users.

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