Registration of MAC addresses
in [Embedded]
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From: Mike Harrison on 3 Oct 2008 05:52 On Fri, 3 Oct 2008 08:24:32 +0200, Frank Buss <fb(a)frank-buss.de> wrote: >Blip wrote: > >> This seems to me like a dumb question, but I don't know what the >> answer is... >> >> We are building a product using the LPC2368 (which has a MAC) & a >> Micrel KSZ8721 (PHY). As part of the prototype programming effort, I >> include a random MAC address in software as part of an init sequence. >> >> When this goes onto other networks, the MAC addresses have a chance to >> collide w/ *real* ones. It seems to me that NXP should provide the MAC >> addess pool since they provide the MAC, but that's probably not true. >> >> Do we need to go to the IEEE & purchase our own OUI? > >This depends on how many items you want to sell. You can buy an IAB, if you >want to sell less than 4097 items: > >http://standards.ieee.org/regauth/registry_IAB.html > >If you are planning to sell more, the $1,650 one-time fee for 24 bit >doesn't look very expensive: > >http://standards.ieee.org/regauth/registry_OUI.html > >I wonder if there is a reseller for buying smaller quantities of MAC >addresses, like for USB device PID/VIDs: > >http://www.voti.nl/shop/p/USB-PID-10.html Looks like the IEEE want to protect their monopoly on expensive numbers - from their FAQ : Can I resell or distribute a segment of the OUI after I obtain it? No. A parent company and a subsidiary company can share an OUI and if a company is sold, the OUI may be transferred to the new company. However, the OUI cannot be sold or distributed by anyone other than IEEE.
From: Frank Buss on 3 Oct 2008 06:28 Mike Harrison wrote: > Looks like the IEEE want to protect their monopoly on expensive numbers - from their FAQ : > > Can I resell or distribute a segment of the OUI after I obtain it? > > No. A parent company and a subsidiary company can share an OUI and if a company is sold, the OUI > may be transferred to the new company. However, the OUI cannot be sold or distributed by anyone > other than IEEE. I wonder what lawyers would say to this. After all you can sell devices with a number from your OUI to customers. So maybe you could sell a piece of paper as a "device" with some numbers written on it? :-) -- Frank Buss, fb(a)frank-buss.de http://www.frank-buss.de, http://www.it4-systems.de
From: Boudewijn Dijkstra on 3 Oct 2008 07:35 Op Fri, 03 Oct 2008 12:28:43 +0200 schreef Frank Buss <fb(a)frank-buss.de>: > Mike Harrison wrote: > >> Looks like the IEEE want to protect their monopoly on expensive >> numbers - from their FAQ : >> >> Can I resell or distribute a segment of the OUI after I obtain it? >> >> No. A parent company and a subsidiary company can share an OUI and >> if a company is sold, the OUI >> may be transferred to the new company. However, the OUI cannot be sold >> or distributed by anyone >> other than IEEE. > > I wonder what lawyers would say to this. After all you can sell devices > with a number from your OUI to customers. So maybe you could sell a piece > of paper as a "device" with some numbers written on it? :-) The IEEE seems to distinguishes between number ownership and assignment. But maybe the OUI owner could sell a company permission to use a portion of the numbers. But I couldn't find any terms&conditions related to this, not even on the application form... -- Gemaakt met Opera's revolutionaire e-mailprogramma: http://www.opera.com/mail/
From: Mel on 3 Oct 2008 08:14 Blip wrote: > This seems to me like a dumb question, but I don't know what the > answer is... > > We are building a product using the LPC2368 (which has a MAC) & a > Micrel KSZ8721 (PHY). As part of the prototype programming effort, I > include a random MAC address in software as part of an init sequence. > > When this goes onto other networks, the MAC addresses have a chance to > collide w/ *real* ones. It seems to me that NXP should provide the MAC > addess pool since they provide the MAC, but that's probably not true. > > Do we need to go to the IEEE & purchase our own OUI? Check the Wikipedia MAC_address article. The MAC standard calls for a rather large block of locally-administered addresses. In an emergency you could use those. Then, in the long run, it would be your customer's look-out. Mel.
From: Joe Chisolm on 3 Oct 2008 12:14 On Fri, 03 Oct 2008 08:29:46 +0200, Frank Buss wrote: > Frank Buss wrote: > >> I wonder if there is a reseller for buying smaller quantities of MAC >> addresses, like for USB device PID/VIDs: >> >> http://www.voti.nl/shop/p/USB-PID-10.html > > Looks like sale of the USB ids is suspended. At least I got 10 ids some > time ago :-) > > http://www.voti.nl/pids/index.html The terms from the VID application form are pretty clear: "The company set forth above hereby applies for a USB Vendor ID Number and agrees to the following: The USB Implementers Forum is the authority which assigns and maintains all USB Vendor ID Numbers. Each Vendor ID Number is assigned to one company for its sole and exclusive use, along with associated Product ID Numbers. They may not be sold, transferred, or used by others, directly or indirectly, except in special circumstances and then only upon prior written approval by USB-IF. Unauthorized use of assigned or unassigned USB Vendor ID Numbers and associated Product ID Numbers are strictly prohibited." The key here is "Each Vendor ID Number is assigned to one company for its sole and exclusive use, along with associated Product ID Numbers" and "They may not be sold...", they being the VID and associated PID. I wonder if usb.org added the "along with associated Product ID Numbers" after the fact when they saw what he was doing. If this was the original wording when he applied for the VID then the right to use the "sold" PIDs is probably questionable since he did not have the right to sell them in the first place. Might be able to license the VID/PID pairs as long as there was no transfer of owner ship. Legal mumbo jumbo word games come into play. Too bad. I guess I'll have to fork over 2 grand.... -- Joe Chisolm Marble Falls, TX
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