root@lp1701023-b:~# dpkg -l | grep ifupdown
ii ifupdown 0.8.17ubuntu1 amd64 high level tools to configure network interfaces
root@lp1701023-b:~# dpkg -l | grep vlan
ii vlan 1.9-3.2ubuntu5 amd64 user mode programs to enable VLANs on your ethernet devices
and with:
root@lp1701023-b:~# dpkg -l | grep ifupdown
ii ifupdown 0.8.17ubuntu1.1 amd64 high level tools to configure network interfaces
root@lp1701023-b:~# dpkg -l | grep vlan
ii vlan 1.9-3.2ubuntu6 amd64 user mode programs to enable VLANs on your ethernet devices
all tests from comment 19 do work with both package versions.
tested bionic per comment 19 with:
root@lp1701023-b:~# dpkg -l | grep ifupdown
ii ifupdown 0.8.17ubuntu1 amd64 high level tools to configure network interfaces
root@lp1701023-b:~# dpkg -l | grep vlan
ii vlan 1.9-3.2ubuntu5 amd64 user mode programs to enable VLANs on your ethernet devices
and with:
root@lp1701023-b:~# dpkg -l | grep ifupdown
ii ifupdown 0.8.17ubuntu1.1 amd64 high level tools to configure network interfaces
root@lp1701023-b:~# dpkg -l | grep vlan
ii vlan 1.9-3.2ubuntu6 amd64 user mode programs to enable VLANs on your ethernet devices
all tests from comment 19 do work with both package versions.