Re: Predictable Network Interface Names

[Markus Schönhaber <debian-user@list-post.mks-mail.de>]

31.03.22, 13:01 +0200, Sven Hartge:

> Greg Wooledge <greg@wooledge.org> wrote:
>
> > unicorn:~$ cat /etc/systemd/network/10-lan0.link
> > [Match]
> > MACAddress=18:60:24:77:5c:ec
>
> > [Link]
> > Name=lan0
>
> Careful with that one. If you use VLANs then you suddenly get multiple
> interface with the same MAC and strange things will happen, because it
> matches for all of them.
>
> The failure-proof way of doing this is by adding "Type=ether" to the
> Match clause, which will only match the physical interfaces and not the
> subinterfaces. (Which will be of Type=vlan.):

Since I haven't (yet) used the combination VLAN/systemd.link I haven't 
run into this issue. But it is definitely something to keep in mind.
Thanks for the hint!

--
Regards
  mks