On 2021-11-17, Radek <r...@int.pl> wrote: > 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.
How about a power-cycle (rather than just a reboot)? > Is there any way to "force" OS to restore original MAC address by reading it > from hardware/NIC instead of ifconfig lladdr ...? That's what it normally does. If it's somehow stuck on the new one and a power-cycle doesn't clear it then presumably using lladdr to reset it to the original will stick (look in old boot messages in /var/log/messages.*.gz, dhcp server logs, maybe printed on the motherboard, etc) -- Please keep replies on the mailing list.
