Re: [RFA] namespaces and vendor extensions

Johannes Berg <[email protected]>
Newsgroups org.netbsd.radiotap
Message-ID <[email protected]>
On Tue, 2009-12-01 at 13:37 -0800, Luis R. Rodriguez wrote:
> On Tue, Dec 1, 2009 at 9:05 AM, Gerald Combs <gerald-IZ8446WsY0/[email protected]> wrote:
> > Johannes Berg wrote:
> >> Joshua,
> >>
> >>> For the structure of the vendor space, you extend 'skip_length' from 8
> >>> bits to 16 bits.
> >>>> Structure
> >>>>        u8 OUI[3], u8 sub_namespace, __le16 skip_length
> >
> > What happens if someone without an OUI wants to add a vendor extension?
> > Do they need to purchase an OUI or IAB from the IEEE?
> 
> No, you can use a locally administered OUI, there is a bit on the OUI
> you can use to mark this.

As we've discussed, I don't think this is true. The EUI-48 (or only MAC
address?) has such a bit along with the group bit, but it is not
inconceivable that OUIs could be assigned in that range for other uses.

johannes
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