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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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