Comment 43 for bug 1770082

Partially working here on fully updated Ubuntu 18.04 Server on VirtualBox :(

I've enabled -proposed repo and updated both nplan/bionic-proposed and netplan.ion/bionic-proposed packages.

Now interfaces got renamed, but IPs are not assigned at boot (both DHCP and static ones).
Calling "netplan generate && netplan apply" after boot only sets the static IPs while DHCP still remains unset.

# dpkg -s netplan.io
Package: netplan.io
Status: install ok installed
Priority: important
Section: net
Architecture: amd64
Version: 0.36.3

# cat /etc/netplan/01-netcfg.yaml
network:
  version: 2
  renderer: networkd
  ethernets:
    id0:
      match:
        macaddress: 08:00:27:6b:d8:91
      set-name: eth_static
      addresses: [ 1.2.3.4/16 ]
      gateway4: 5.6.7.8
    id1:
      match:
        macaddress: 08:00:27:23:68:f5
      set-name: eth_dhcp
      dhcp4: true

*** (just after boot) ***
# ifconfig -a
eth_dhcp: flags=4098<BROADCAST,MULTICAST> mtu 1500
        ether 08:00:27:23:68:f5 txqueuelen 1000 (Ethernet)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 0 bytes 0 (0.0 B)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

eth_static: flags=4098<BROADCAST,MULTICAST> mtu 1500
        ether 08:00:27:6b:d8:91 txqueuelen 1000 (Ethernet)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 0 bytes 0 (0.0 B)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
        inet 127.0.0.1 netmask 255.0.0.0
        inet6 ::1 prefixlen 128 scopeid 0x10<host>
        loop txqueuelen 1000 (Local Loopback)
        RX packets 2 bytes 78 (78.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 2 bytes 78 (78.0 B)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

*** (after "netplan apply") ***
eth_dhcp: flags=4098<BROADCAST,MULTICAST> mtu 1500
        ether 08:00:27:23:68:f5 txqueuelen 1000 (Ethernet)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 0 bytes 0 (0.0 B)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

eth_static: flags=4098<BROADCAST,MULTICAST> mtu 1500
        inet 1.2.3.4 netmask 255.255.0.0 broadcast 1.2.255.255
        inet6 fe80::a00:27ff:fe6b:d891 prefixlen 64 scopeid 0x20<link>
        ether 08:00:27:6b:d8:91 txqueuelen 1000 (Ethernet)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 0 bytes 0 (0.0 B)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
        inet 127.0.0.1 netmask 255.0.0.0
        inet6 ::1 prefixlen 128 scopeid 0x10<host>
        loop txqueuelen 1000 (Local Loopback)
        RX packets 2 bytes 78 (78.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 2 bytes 78 (78.0 B)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0