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From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: Possible networking regression in 3.6.0
Date: Tue, 02 Oct 2012 18:06:32 +0200
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Cc: David Miller <davem@davemloft.net>, chris2553@googlemail.com,
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To: Dave Jones <davej@redhat.com>
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On Tue, 2012-10-02 at 11:57 -0400, Dave Jones wrote:

> 
> Good work! Any idea why it didn't happen on every build for me ?
> 
> From your description, this should have failed every time ?

Well, it seems that as long as you had forwarded packets and a route not
yet cached in nh_rth_input, we were using a brand new route (and correct
one)

But as soon as a locally generated traffic did cache a route in
nh_rth_input, forwarded packets immediately were using this cache and
were delivered (and dropped) to local host.

Maybe my patch is not the good fix, but at least its a step in
understanding the problem.

Thanks