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Re: IPv6 Link-Local Use Issue for Applications



Mark,

>b) There have been cases where manufacturers have allocated non-unique MAC 
>addresses. What is worse is that these duplications have apparently tended 
>to happen within the same batch of NICs, and have been encountered when 
>somebody goes to deploy a group of say 20 new NICs they have just bought, 
>and encounter one or more duplications.

Do you have any first hand experience of this happening?  I have heard the 
story several times, but I would like to see something definitive.  I 
wonder if it is an "internet urban myth".

Does anyone have in their possession two or more NICs with the same MAC 
address?

Thanks,
Bob

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