netdev - Re: A problem about ICMP packet-too-big message handler

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Date:	Thu, 29 Jan 2015 09:04:58 +0800
From:	Yang Yingliang <yangyingliang@...wei.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	Martin Lau <kafai@...com>, netdev <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: A problem about ICMP packet-too-big message handler

On 2015/1/28 20:45, Eric Dumazet wrote:
> On Wed, 2015-01-28 at 14:46 +0800, Yang Yingliang wrote:
>> On 2015/1/28 13:19, Martin Lau wrote:
>>> On Tue, Jan 27, 2015 at 08:58:53PM +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 :
>>> The expires should be set by the host _receiving_ the icmpv6 too-big.
>>>
>>> Can you spell out some details of the outgoing icmpv6 too-big packet?
>>> like, the src/dst ip of the icmpv6 and the original ip packet that triggered the
>>> too-big.
>>>
>>
>> I don't send too-big packet to trigger the err handling.
>>
>> I just only send a ICMPv6 packet which type is ICMPV6_PKT_TOOBIG.
> 
> You meant : you received an ICMPv6 packet, or you send it ?

Received an ICMPv6 packet.

Regards,
Yang


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