Hi,

2011/10/20 Gert Doering <g...@space.net>:
> Hi,
>
> On Thu, Oct 20, 2011 at 09:47:28PM +0800, Washam Fan wrote:
>> Sorry for late response.
>>
>> Since NS(DAD) traverse the same link, couldn't we just use src MAC of
>> the received NS(DAD) to identify if the NS is the one sent by the
>> interface earlier?
>>
>> Am I missing something?
>
> Yes.  Not all the world is Ethernet.
>
> We've seen this problem mostly on SDH/Sonet links, which are either
> HDLC or PPP encapsulated, and don't have MAC addresses in their frames.
>
Thanks Gert. Got your points.

washam
> Gert Doering
>        -- NetMaster
> --
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