On Mon, Mar 2, 2020, 16:59 Felix <systemd-devel@xxxxxxxxxxxx> wrote:
Hello everybody,
I'm failing to set an alias for a link using systemd-networkd. Am I
doing something wrong? Is this a bug?
I'm on this systemd version:
systemd 244 (244.3-1~bpo10+1)
+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP
+LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS
+KMOD +IDN2 -IDN +PCRE2 default-hierarchy=hybrid
This runs on a Debian Buster inside a virtual machine hosted on a
proxmox 6.1 server, if that matters.
I'm trying to set an alias for a link using systemd-networkd, following
this documentation:
https://www.freedesktop.org/software/systemd/man/systemd.link.html#Alias= .
I put my file in /etc/systemd/network/, as
-rw-r--r-- 1 root root 56 Mär 2 14:06 ens19.link
with this content:
```
[Match]
Path=/sys/class/net/ens19
The Path= setting is documented to match against the ID_PATH udev property, not against the list of sysfs paths. (For example udevadm shows "pci-0000:01:00.0" on my machine.)
[Link]
Alias=myalias
```
I also tried to replace `Path=/sys/class/net/ens19` with
`MACAddress=be:19:32:ed:c0:61` and `OriginalName=ens19`.
OriginalName matches the kernel-assigned name (udev property 'INTERFACE'), which is always either eth# or wlan# or usb# or similar.
Names such as ens# or eno# are not original – the interfaces are renamed by udev, and this actually happens *after* applying .link files (as the .link files specify which naming policy to use in the first place.)
After `systemctl restart systemd-networkd` or even rebooting the alias
is still not set:
How can I set the link alias using systemd-networkd?
.link files are not applied by networkd – they're applied by udev.
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