I just tried it on all releases up to Kinetic, they're all affected. I
suspect it's actually a bug in systemd-networkd, as the files generated
in /run/systemd/networkd/ look sane enough:
root@firm-mayfly:~# cat /run/systemd/network/10-netplan-eno1.network
[Match]
MACAddress=00:16:3e:10:7a:c2
Type=!vlan bond bridge
[Network]
LinkLocalAddressing=ipv6
Address=192.168.2.1/24
VLAN=l2club
root@firm-mayfly:~# cat /run/systemd/network/10-netplan-l2club.netdev
[NetDev]
Name=l2club
Kind=vlan
[VLAN]
Id=10
root@firm-mayfly:~# cat /run/systemd/network/10-netplan-l2club.network
[Match]
Name=l2club
[Network]
LinkLocalAddressing=ipv6
Address=10.232.228.16/8
ConfigureWithoutCarrier=yes
There wasn't anything suspicious in the journald logs, either.
** Tags added: rls-kk-incoming
** Also affects: systemd (Ubuntu)
Importance: Undecided
Status: New
** Changed in: netplan
Status: New => Confirmed
** Changed in: netplan.io (Ubuntu)
Status: New => Confirmed
** Changed in: systemd (Ubuntu)
Status: New => Confirmed
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Touch seeded packages, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1988657
Title:
VLAN gets IP address assignment from parent device when using "match
macaddress"
Status in netplan:
Confirmed
Status in netplan.io package in Ubuntu:
Confirmed
Status in systemd package in Ubuntu:
Confirmed
Bug description:
System is Ubuntu 18.04 with Netplan 0.99-0ubuntu3~18.04.5(amd64)
When using the "match macaddress" mechanism to guarantee the
assignment of the ethernet device name to a particular port, VLANs
added to that device will not get the the IP addresses assigned to
them but rather the IP address of the parent ethernet device.
In the example below from my system, the 'l2club' VLAN would get the
192.168.2.1 address, along with eno1 receiving it. The address
10.232.228.16 was not assigned to anything. With the "match
macaddress" section was removed, both interfaces would then get the IP
addresses that were expected.
network:
version: 2
renderer: networkd
ethernets:
eno1:
match:
macaddress: 00:24:e8:00:00:00
addresses:
- 192.168.2.1/24
vlans:
l2club:
id: 10
link: eno1
addresses:
- 10.232.228.16/8
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