netdev - Re: [PATCHv2 net-next 1/2] gre: add sequence number for collect md mode.

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Date:   Thu, 1 Mar 2018 23:00:08 +0100
From:   Daniel Borkmann <daniel@...earbox.net>
To:     William Tu <u9012063@...il.com>, netdev@...r.kernel.org
Cc:     ast@...nel.org
Subject: Re: [PATCHv2 net-next 1/2] gre: add sequence number for collect md
 mode.

On 03/01/2018 10:49 PM, William Tu wrote:
> Currently GRE sequence number can only be used in native
> tunnel mode.  This patch adds sequence number support for
> gre collect metadata mode.  RFC2890 defines GRE sequence
> number to be specific to the traffic flow identified by the
> key.  However, this patch does not implement per-key seqno.
> The sequence number is shared in the same tunnel device.
> That is, different tunnel keys using the same collect_md
> tunnel share single sequence number.
> 
> Signed-off-by: William Tu <u9012063@...il.com>

BPF bits:

Acked-by: Daniel Borkmann <daniel@...earbox.net>