lkml.org 
[lkml]   [2008]   [Jan]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: Get physical MAC address
    On Wed, 02 Jan 2008 00:07:28 +0100
    Bernd Petrovitsch <bernd@firmix.at> wrote:

    > On Mon, 2007-12-31 at 12:39 +0700, Theewara Vorakosit wrote:
    > [...]
    > > I get MAC address from ioctl. However, ifconfig can change this MAC
    > > address. Can I get a real physical MAC address of the NIC?
    >
    > - You can get the initial MAC address right after bootup before anyone
    > changes it.
    > - Some (if not many if not all) of the drivers output it on
    > driver initialization time so you could read it from `dmesg` or
    > some /var/log/messages or .....
    > There is no "get initial MAC address" ioctl (but it's not that
    > complicated to implement it).
    >
    > Bernd

    There is already ethtool interface to get what you want (ETHTOOL_GPERMADDR)


    --
    Stephen Hemminger <stephen.hemminger@vyatta.com>


    \
     
     \ /
      Last update: 2008-01-02 03:17    [W:0.019 / U:30.276 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site