On Fri, May 29, 2015 at 10:21:35AM +0200, Stefan Schmidt wrote: > Hello. Hi! > >>I am currently really unsure and looking in well-known IoT OS, if they > >>look on this bit. But I didn't saw anything. Only that the most using > >>the same like eth_random_addr address and fill with ff fe bit pattern. > >>Maybe to operate with some virtual linux networking ethernet interfaces > >>which are connected over slip and tun/tap and such things... > >ff fe bit pattern? > > What they do is mapping a EUI-48 to a EUI-64 following the guidelines from: > > https://standards.ieee.org/develop/regauth/tut/eui48.pdf page 4 > > The two missing octets are filled in with either FF > FE or FF FF. The padding happens after the first > three bytes with the OUI and the rest of the > EUI-48. Ah yes, I remember that, I just couldn't figure out what the 'ff fe bit pattern' remark was referring to -- thanks for clarifying. :) -- To unsubscribe from this list: send the line "unsubscribe linux-wpan" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
