This bug was fixed in the package systemd - 229-4ubuntu11
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systemd (229-4ubuntu11) xenial; urgency=medium
* 73-usb-net-by-mac.rules: Split kernel command line import line.
Reportedly this makes the rule actually work on some platforms. Thanks
Alp Toker! (LP: #1593379)
This bug was fixed in the package network-manager -
1.2.2-0ubuntu0.16.04.3
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network-manager (1.2.2-0ubuntu0.16.04.3) xenial; urgency=medium
* debian/tests/wpa-dhclient: Don't assume that the IPv6 prefix length from
the DHCP server is /64. (LP: #1609898)
network-manager
We need to backport a networkd fix:
https://github.com/systemd/systemd/commit/6fc2549711 . This will clean
up old addresses from interfaces when restarting networkd, so that
changed netplan configuration will actually reflect reality.
** Also affects: systemd (Ubuntu)
Importance: Undecided
