From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hannes Frederic Sowa <hannes@redhat.com>
Subject: Re: A problem about ICMP packet-too-big message handler
Date: Wed, 28 Jan 2015 09:42:54 +0100
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References: <54C78B8D.1070104@huawei.com>
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Cc: netdev <netdev@vger.kernel.org>,
	"David S. Miller" <davem@davemloft.net>
To: Yang Yingliang <yangyingliang@huawei.com>
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On Di, 2015-01-27 at 20:58 +0800, Yang Yingliang wrote:
> Hi,
> 
> My kernel is 3.10 LTS.
> 
> I got a problem here about handling ICMP packet-too-big message.
> 
> Before sending a packet-too-big packet :
> 
> # ip -6 route list table local
> local ::1 dev lo  metric 0 
> local fe80:: dev lo  metric 0 
> local fe80:: dev lo  metric 0 
> local fe80:: dev lo  metric 0 
> local fe80:: dev lo  metric 0 
> local fe80:: dev lo  metric 0 
> local fe80:: dev lo  metric 0 
> local fe80::1 dev lo  metric 0 	//It  does not have expire value

Did you just add a local route or do you also have a corresponding IPv6
address bound to loopback?

Bye,
Hannes