Re: [PATCH] pppoe: Missed check for destination addr in PADT frame processing

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On 10/15/10, Sujit K M <sjt.kar@xxxxxxxxx> wrote:
>> discovered that it happens due to PADT frames being received with
>> destination MAC not matching the client MAC even though they have
>> proper source MAC and session_id. It seems that these ISP use very
>
> This seems to be a wrong way of interpreting the scenario. I think It should
> be proper source MAC and session_id.

In case of ISP has single access point, it has one source MAC for all
network, right? If such AP is buggy and give two(or more) equal
session_id's to several clients, this cause situation I described
above.

Of course, it should be fixed in ISP hardware, but I apologize that
kernel PPPoE driver should have better foolproof.

Regards,
   Leonid
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