On Wed, 17 Nov 2021 17:48:44 +0100
Łukasz Moskała <l...@lukaszmoskala.pl> wrote:

> 
> 
> Dnia 17 listopada 2021 16:39:07 CET, Radek <r...@int.pl> napisał/a:
> >On Wed, 17 Nov 2021 11:22:42 +0100
> >Denis Fondras <open...@ledeuns.net> wrote:
> >
> >> Le Wed, Nov 17, 2021 at 05:03:42AM +0100, Radek a écrit :
> >> > 
> >> > How can I restore the vendor's MAC address?
> >> > It is 6.8/amd64.
> >> > 
> >> 
> >> Check dmesg, it will give you the original MAC address, then ifconfig 
> >> lladdr...
> >> 
> >
> >Hello Denis,
> >dmesg shows my new_MAC.
> >I know the value of my original MAC address but I used to think that 
> >removing lladdr value from /etc/hostname.if and then reboot restores the 
> >original MAC. I doesn't.
> >Is there any way to "force" OS to restore original MAC address by reading it 
> >from hardware/NIC instead of ifconfig lladdr ...?
> >
> 
> I have no idea how the lladdr option is handled by driver, but it looks like 
> your network card decided to write new_MAC to it's EEPROM chip (where it's 
> usually stored).
I thought the same thing.
> 
> Out of curiosity, does linux or any other OS show new_MAC or vendor's MAC?
It's a production router. I'm planning to replace that box with another one in 
a few weeks, then I'll do some tests.
bios0 at mainbus0: SMBIOS rev. 3.0 @ 0x7ee42040 (9 entries)
bios0: vendor coreboot version "v4.13.0.1" date 11/25/2020
bios0: PC Engines apu1

> --
> Łukasz Moskała
> 


-- 
Radek

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