Messages in this thread | | | Date | Tue, 20 Jul 2010 14:20:45 -0700 (PDT) | Subject | Re: [PATCH net-next] sysfs: add entry to indicate network interfaces with random MAC address | From | David Miller <> |
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From: Stephen Hemminger <shemminger@vyatta.com> Date: Tue, 20 Jul 2010 14:18:16 -0700
> No one mentioned that the first octet of an Ethernet address already > indicates "software generated" Ethernet address. Per the standard, > if bit 1 is set it means address is locally assigned. > > static inline bool is_locally_assigned_ether(const u8 *addr) > { > return (addr[0] & 0x2) != 0; > }
W00t!
Indeed, can udev just use that? :-)
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