netdev - Re: [PATCH -next, V3 0/2] net: force refragmentation for DF reassembed skbs

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Date:	Tue, 26 May 2015 11:57:25 +0200
From:	Maxime Bizon <mbizon@...ebox.fr>
To:	Florian Westphal <fw@...len.de>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	hannes@...essinduktion.org
Subject: Re: [PATCH -next, V3 0/2] net: force refragmentation for DF
 reassembed skbs

On Fri, 2015-05-22 at 21:26 +0200, Florian Westphal wrote:

Hello,

> But it does happen, see e.g. following bug report:
> http://marc.info/?l=linux-netdev&m=139870308431986&w=2
> 
> Maxime, do you recall what type of traffic generates
> the DF-fragments you reported?

Yep

We are an ISP and provide our own home gateway to the subscribers, which
ends up routing traffic of a large range of end user devices.

In that case, the frag+DF traffic was seen in an exchange between a
femtocell and a femto GW during the IPsec IKE exchange, more precisely
on the IKE_AUTH message sent from the femto GW.

You can contact me privately if you need more details.

-- 
Maxime

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