Verification done on bionic with netplan.io 0.40.1~18.04.2:
I have checked that with ipv4 link-local enabled as per the use-case, an
ipv4 link-local address is correctly set up by systemd-networkd as
requested by the netplan config.
ubuntu@nice-baboon:~$ sudo vi /etc/netplan/50-cloud-init.yaml
ubuntu@nice-baboon:~$ sudo netplan --debug apply
cat /** (generate:1270): DEBUG: 18:23:59.386: Processing input file
/etc/netplan/50-cloud-init.yaml..
** (generate:1270): DEBUG: 18:23:59.386: starting new processing pass
** (generate:1270): DEBUG: 18:23:59.387: ens3: setting default backend to 1
** (generate:1270): DEBUG: 18:23:59.387: Generating output files..
** (generate:1270): DEBUG: 18:23:59.387: NetworkManager: definition ens3 is not
for us (backend 1)
DEBUG:netplan generated networkd configuration exists, restarting networkd
DEBUG:no netplan generated NM configuration exists
eDEBUG:ens3 not found in {}
DEBUG:Merged config:
network:
bonds: {}
bridges: {}
ethernets:
ens3:
addresses:
- 10.3.21.29/20
gateway4: 10.3.16.1
link-local:
- ipv4
match:
macaddress: 52:54:00:4d:3e:84
mtu: 1500
nameservers:
addresses:
- 10.3.21.25
search:
- cloud.cyphermox.net
vlans: {}
wifis: {}
DEBUG:device lo operstate is unknown, not changing
DEBUG:device ens3 operstate is up, not changing
DEBUG:{}
DEBUG:netplan triggering .link rules for lo
DEBUG:netplan triggering .link rules for ens3
tubuntu@nice-baboon:~$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group
default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP
group default qlen 1000
link/ether 52:54:00:4d:3e:84 brd ff:ff:ff:ff:ff:ff
inet 169.254.4.84/16 brd 169.254.255.255 scope link ens3
valid_lft forever preferred_lft forever
inet 10.3.21.29/20 brd 10.3.31.255 scope global ens3
valid_lft forever preferred_lft forever
inet6 fe80::5054:ff:fe4d:3e84/64 scope link
valid_lft forever preferred_lft forever
** Tags removed: verification-needed verification-needed-bionic
** Tags added: verification-done-bionic
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https://bugs.launchpad.net/bugs/1771704
Title:
support for ipv4 link-local addressing
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