From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: ipip: Fix handling of DF packets when pmtudisc is OFF
Date: Fri, 06 Nov 2009 20:36:11 -0800 (PST)
Message-ID: <20091106.203611.35603356.davem@davemloft.net>
References: <20091106203741.GA19736@gondor.apana.org.au>
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From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Fri, 6 Nov 2009 15:37:41 -0500

> ipip: Fix handling of DF packets when pmtudisc is OFF
...
> This patch fixes the problem by performing PMTU discovery for
> all packets with the inner DF bit set, regardless of the PMTU
> discovery setting on the tunnel itself.
> 
> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

The fun never ends :-)

Applied to net-2.6, thanks Herbert.