i.MX Processorsのトピックrandom MAC address

random MAC address

fabio_poiatti — Tue, 17 Dec 2019 07:25:52 GMT

I have eth0 works but ... how is possible to have fixed MAC? where the MAC in written in the boot?

We have this message during the startup ...

fec 2188000.ethernet: 2188000.ethernet supply phy not found, using dummy regulator
pps pps0: new PPS source ptp0
fec 2188000.ethernet (unnamed net_device) (uninitialized): Invalid MAC address: 00:00:00:00:00:00
fec 2188000.ethernet (unnamed net_device) (uninitialized): Using random MAC address: ce:10:be:1d:a5:c0
libphy: fec_enet_mii_bus: probed
fec 2188000.ethernet eth0: registered PHC device 0
PPP generic driver version 2.4.2

Thanks

Fabio

Re: random MAC address

b36401 — Tue, 17 Dec 2019 08:54:17 GMT

You can use ifconfig to set exact MAC address:
# ifconfig eth0 hw ether 08:01:02:03:04:05

I mean you can add such command into startup.

Re: random MAC address

imed_jedidi — Wed, 08 Jan 2020 09:39:11 GMT

Hi Victor,

I have the same request. Is it the best solution to do it?

With this command, The device will start with a random Ethernet and after that Ethernet a ddress will be changed to selected on.

Does this behaviour acceptable in front of DHCP servers?

BR,

Imed