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    SubjectRe: [PATCH net-next] sysfs: add entry to indicate network interfaces with random MAC address
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    From: Harald Hoyer <harald@redhat.com>
    Date: Wed, 21 Jul 2010 08:26:27 +0200

    > On 07/20/2010 11:20 PM, David Miller wrote:
    >> 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? :-)
    >
    > It already does:
    > see /lib/udev/rules.d/75-persistent-net-generator.rules

    So... why doesn't this work?


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