Subject: Re: [CentOS] Centos 7 and MAC address munging Date: Thu, 18 May 2017 06:22:21 +0100 From: James Hogarth <james.hoga...@gmail.com> > > On 17 May 2017 8:53 pm, <m.r...@5-cent.us> wrote: > >> Odd situation: I've mentioned before that I have several users for whom I >< have to spoof the MAC address, due to a software license. Now, I've got >> net.ifnames=0 biosdevname=0 on the grub2 command line, and I've got the >> spoofed MAC address in /etc/sysconfig/network-sctipts/ifcfg-eth0. > >> But he had a serious problem - X froze, and he thought to reboot, rather >> than call me. It came up with the actual MAC. I tried a number of things, >> including reboots, but the only thing that worked was systemctl stop >> NetworkManager, ifdown eth0, then ifup eth0, then start NetworkMangler, >> and all was good. > >> Yeah, I know, afterwards, I remembered I should have use nmcli.... > >> But the real question is *why* did it fail on the reboot. I find no clues >> in dmesg, or messages, or boot.log. > >> Clues for the poor? > > Is this box fully updated? I ask as the NM since 7.3 has different > behaviour from release due to rebasing.
Mostly. Running 3.10.0-514.10.2.el7.x86_64, and yum tells me nothing marked for update (that's ignoring that we have exclude=kernel* *xorg* *nvid* kmod* in yum.conf) > > What does `nmcli con sh eth0 | grep clone` tell you? > 802-3-ethernet.cloned-mac-address: and the spoofed MAC address. > It's that property you need to set. Sorry, I don't understand the above sentence. What property - 802-3-ethernet.cloned-mac-address? And this is on top of ifcfg-eth0, and all the rest? mark _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos