Showfom, are you saying there's still related work to be done here? If
so, can you please open a new bug for it?
** Changed in: cloud-init
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1973724
Title:
Systemd-networkd generated configuration is wrong when both ipv4 and
ipv6 addresses are used
Status in cloud-init:
Fix Released
Bug description:
Hello,
I'm using cloud-init in a proxmox environment, which exposes the
configuration as a /dev/sr0.
The generated network-config looks like this:
```
[root@newgate:~]# more /mnt/*|cat
::::::::::::::
/mnt/meta-data
::::::::::::::
instance-id: 550761acf2ff3ad63bf33cab486c12131f73f405
::::::::::::::
/mnt/network-config
::::::::::::::
version: 1
config:
- type: physical
name: eth0
mac_address: 'ae:98:25:fa:36:9e'
subnets:
- type: static
address: '10.0.0.2'
netmask: '255.255.255.255'
gateway: '10.0.0.1'
- type: static6
address: '2a01:4f8:10a:19d2::4/64'
gateway: '2a01:4f8:10a:19d2::2'
- type: nameserver
address:
- '100.100.100.100'
search:
- 'rgrunbla.github.beta.tailscale.net'
::::::::::::::
/mnt/user-data
::::::::::::::
#cloud-config
hostname: newgate
manage_etc_hosts: true
ssh_authorized_keys:
- ssh-ed25519
AAAAC3NzaC1lZDI1NTE5AAAAIDwZm6kUsK/FrgJPzFi5AgvqIIYfy5S/Se4/rZgB4Edx
remy@typhoon
chpasswd:
expire: False
users:
- default
package_upgrade: true
::::::::::::::
/mnt/vendor-data
::::::::::::::
```
The problem is that the generated systemd-networkd configuration is
wrong. It looks like this:
```
[root@newgate:~]# cat /etc/systemd/network/10-cloud-init-eth0.network
[Match]
MACAddress=ae:98:25:fa:36:9e
Name=eth0
[Network]
DHCP=no
DNS=100.100.100.100
Domains=rgrunbla.github.beta.tailscale.net
[Address]
Address=10.0.0.2/32
Address=2a01:4f8:10a:19d2::4/64
[Route]
Gateway=10.0.0.1
Gateway=2a01:4f8:10a:19d2::2
```
In particular, the systemd-networkd manual says: "As in the [Network]
section. This setting is mandatory. Each [Address] section can contain
one Address= setting".
This results in errors in systemd:
```
[root@newgate:~]# systemctl status systemd-networkd --no-pager --all
● systemd-networkd.service - Network Configuration
Loaded: loaded (/etc/systemd/system/systemd-networkd.service; enabled;
vendor preset: enabled)
Drop-In:
/nix/store/5bj0s92f35hwc06mgjp9dzc0inncva6d-system-units/systemd-networkd.service.d
└─overrides.conf
Active: active (running) since Tue 2022-05-17 07:46:48 UTC; 5min ago
TriggeredBy: ● systemd-networkd.socket
Docs: man:systemd-networkd.service(8)
Main PID: 643 (systemd-network)
Status: "Processing requests..."
IP: 0B in, 392B out
IO: 1.6M read, 0B written
Tasks: 1 (limit: 2354)
Memory: 2.9M
CPU: 25ms
CGroup: /system.slice/systemd-networkd.service
└─643
/nix/store/9c90b5pmgj1pbdvgnalhldhfcj98p400-systemd-250.4/li…
May 17 07:46:48 newgate systemd[1]: Starting Network Configuration...
May 17 07:46:48 newgate systemd-networkd[643]:
/etc/systemd/network/10-cloud-init-eth0.network:12: Address is incompatible,
ignoring assignment: 2a01:4f8:10a:19d2::4/64
May 17 07:46:48 newgate systemd-networkd[643]:
/etc/systemd/network/10-cloud-init-eth0.network: Gateway= without static
address configured. Enabling GatewayOnLink= option.
May 17 07:46:48 newgate systemd-networkd[643]: lo: Link UP
May 17 07:46:48 newgate systemd-networkd[643]: lo: Gained carrier
May 17 07:46:48 newgate systemd-networkd[643]: Enumeration completed
May 17 07:46:48 newgate systemd[1]: Started Network Configuration.
May 17 07:46:48 newgate systemd-networkd[643]: eth0: Link UP
May 17 07:46:48 newgate systemd-networkd[643]: eth0: Gained carrier
May 17 07:46:49 newgate systemd-networkd[643]: eth0: Gained IPv6LL
```
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