Wireshark mailing list archives

Re: Automatic update USB Vendor ID / Product ID


From: Hadriel Kaplan <HKaplan () acmepacket com>
Date: Sat, 16 Mar 2013 17:59:50 +0000


On Mar 16, 2013, at 7:35 AM, Jaap Keuter <jaap.keuter () xs4all nl> wrote:

We may want to get something like this going for OUI's as well.

I think the current OUI getter code (make-manuf) needs to change anyway - it currently gets the 22-bit OUIs and 
Individual Address Blocks (IABs) from IEEE's website, but does not get the OUI-36 listing that's been used since 2007 
(http://standards.ieee.org/develop/regauth/oui36/oui36.txt).  

IABs and OUI-36 are very similar, but have a different reserved OUI prefix and are thus a separate number space.  
Technically an IAB is not an "OUI", and can only be used for EUI-48 addresses (i.e., 48-bit MAC addresses).  On the 
other hand an OUI-36 can be used for other things: an EUI-64, CDI, and as an extended OUI - although in practice my 
guess is people do the same thing with IABs anyway.  The IEEE is considering merging the two into one registry, but 
they'll still have the current numbers/prefixes - for wireshark this just means that the URL to get the listings may 
change.

Also, the IEEE is proposing to create OUI-26, OUI-28, and CompanyID registries.
The details can be read here:
http://tools.ietf.org/html/draft-ieee-rac-oui-restructuring

-hadriel

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