I re-confirmed the fix using systemd 249.11-0ubuntu3.9 from jammy-proposed:
$ apt-cache policy systemd systemd: Installed: 249.11-0ubuntu3.9 Candidate: 249.11-0ubuntu3.9 Version table: *** 249.11-0ubuntu3.9 500 500 http://archive.ubuntu.com/ubuntu jammy-proposed/main amd64 Packages 100 /var/lib/dpkg/status 249.11-0ubuntu3.7 500 500 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages 249.11-0ubuntu3 500 500 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages $ cat /etc/systemd/network/10-vlan18.netdev [NetDev] Name=vlan18 Kind=vlan
[VLAN] Id=18 $ cat /etc/systemd/network/20-vlan18.network [Match] Name=vlan18
[Network] Address=10.10.1.1/24
[Link] ActivationPolicy=manual $ cat /etc/systemd/network/30-ens3.network [Match] Name=ens3
[Network] DHCP=ipv4 $ ip a show vlan18 3: vlan18@ens3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000 link/ether 52:54:00:c6:8b:40 brd ff:ff:ff:ff:ff:ff
I re-confirmed the fix using systemd 249.11-0ubuntu3.9 from jammy-proposed:
$ apt-cache policy systemd archive. ubuntu. com/ubuntu jammy-proposed/main amd64 Packages dpkg/status 11-0ubuntu3. 7 500 archive. ubuntu. com/ubuntu jammy-updates/main amd64 Packages security. ubuntu. com/ubuntu jammy-security/main amd64 Packages 11-0ubuntu3 500 archive. ubuntu. com/ubuntu jammy/main amd64 Packages network/ 10-vlan18. netdev
systemd:
Installed: 249.11-0ubuntu3.9
Candidate: 249.11-0ubuntu3.9
Version table:
*** 249.11-0ubuntu3.9 500
500 http://
100 /var/lib/
249.
500 http://
500 http://
249.
500 http://
$ cat /etc/systemd/
[NetDev]
Name=vlan18
Kind=vlan
[VLAN] network/ 20-vlan18. network
Id=18
$ cat /etc/systemd/
[Match]
Name=vlan18
[Network] 10.10.1. 1/24
Address=
[Link] y=manual network/ 30-ens3. network
ActivationPolic
$ cat /etc/systemd/
[Match]
Name=ens3
[Network] MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
DHCP=ipv4
$ ip a show vlan18
3: vlan18@ens3: <BROADCAST,
link/ether 52:54:00:c6:8b:40 brd ff:ff:ff:ff:ff:ff