RE: [lwip-users] MAC Address?

[Bill Auerbach]

We have the block and it was like $495 for 4096 addresses.

Bill

>-----Original Message-----
>From: address@hidden
>[mailto:address@hidden On
>Behalf Of Roger Cover
>Sent: Friday, April 10, 2009 2:31 PM
>To: Mailing list for lwIP users
>Subject: RE: [lwip-users] MAC Address?
>
>Howdy John,
>
>That is my understanding. We have an OUI. The price was not that much
>higher than a minimum block.
>
>Regards,
>Roger
>-----Original Message-----
>From: address@hidden
>[mailto:address@hidden On Behalf Of
>John Kennedy
>Sent: Friday, April 10, 2009 10:53 AM
>To: 'Mailing list for lwIP users'
>Subject: RE: [lwip-users] MAC Address?
>
>Roger,
>So I assume if you purchase an OUI you get a block of 2^24 = 16M
>addresses OR you can purchase a minimum block of 4,096 addresses but you
>don't get an OUI?
>
>John
>
>
>
>________________________________________
>John Kennedy
>
>
>Idaho Technology Inc.
>390 Wakara Way
>Salt Lake City, UT 84108, USA
>
>USA: 1-800-735-6544
>Bus:+1 (801)736-6354 x448
>Fax:+1 (801)588-0507
>
>http://www.idahotech.com/
>-----Original Message-----
>From: Roger Cover [mailto:address@hidden
>Sent: Friday, April 10, 2009 11:12 AM
>To: Mailing list for lwIP users
>Subject: RE: [lwip-users] MAC Address?
>
>
>Howdy Folks,
>
>Here is a bit of information about MAC addresses that might be
>applicable to this discussion:
>
>MAC addresses can either be "universally administered" or "locally
>administered."
>
>A universally administered address is assigned to a device by its
>manufacturer. The first three octets are the Organizationally Unique
>Identifier (OUI) of the manufacturer (issued by the IEEE). The remaining
>octets are assigned by the manufacturer.
>
>A locally administered address can be assigned to a device by any
>network administrator. Locally administered addresses must not contain
>OUIs.
>
>Universally administered and locally administered addresses are
>identifiable by the bit who's value is 2 in the most significant byte of
>the address. A zero in that bit indicates a universally administered
>address. A one indicates a locally administered address. For example:
>02-12-34-56-78-90 is a locally administered address, 00-1B-21-11-74-58
>is the address of my NIC (00-1B-21 is Intel's OUI). The IEEE will not
>issue an OUI with this bit set.
>
>Locally administered addresses are the responsibility of the network
>administrator where they are used. Universally administered address are
>the responsibility of device manufacturers.
>
>>>> Are there some pre-allocated MAC addresses one can use temporarily
>>>> for testing?
>
>If you want a MAC address for testing a product under development, you
>can just pick any locally administered address you want (subject to your
>network administrator's guidance). If you want a MAC address for
>shipping a product, you need to buy a block of addresses or buy a
>company OUI. Both of them are reasonably inexpensive and can be used for
>any number of products.
>
>Regards,
>Roger
>
>
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