[Bug 1988657] Re: VLAN gets IP address assignment from parent device when using "match macaddress"

[Nick Rosbrook]

** Changed in: systemd (Ubuntu)
   Importance: Undecided => Low

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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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