The proposed package for Noble has been tested, and all results are as
expected.
[Noble]
> apt policy systemd
systemd:
Installed: 255.4-1ubuntu8.10
Candidate: 255.4-1ubuntu8.10
Version table:
*** 255.4-1ubuntu8.10 100
100 http://iad-ad-3.clouds.archive.ubuntu.com/ubuntu
noble-proposed/main amd64 Packages
100 /var/lib/dpkg/status
255.4-1ubuntu8.8 500
500 http://iad-ad-3.clouds.archive.ubuntu.com/ubuntu noble-updates/main
amd64 Packages
500 http://security.ubuntu.com/ubuntu noble-security/main amd64 Packages
255.4-1ubuntu8 500
500 http://iad-ad-3.clouds.archive.ubuntu.com/ubuntu noble/main amd64
Packages
<Verify the functionality of KeepConfiguration in preserving IPv6
configurations>
> iscsiadm -m session
tcp: [1] [fd00:00c1:0000:0000:0000:0000:a9fe:0002]:3260,1
iqn.2015-02.oracle.boot:uefi (non-flash)
<Verify the serialization and deserialization functionality in the
systemd-networkd service>
2025-07-04T00:36:12.842009+00:00 noble systemd-networkd[2335]: Serializing...
2025-07-04T00:36:12.842046+00:00 noble systemd-networkd[2335]: enp0s9:
Serializing DHCPv4 address (configured): 10.0.2.128/24 broadcast 10.0.2.255
(valid forever, preferred forever), flags: permanent, scope: global, label: n/a
2025-07-04T00:36:12.842073+00:00 noble systemd-networkd[2335]: enp0s9:
Serializing DHCPv4 route (configured): dst: 169.254.0.0/16, src: n/a, gw: n/a,
prefsrc: 10.0.2.128, scope: link, table: main(254), proto: dhcp, type: unicast,
nexthop: 0, priority: 100, flags: n/a
2025-07-04T00:36:12.842099+00:00 noble systemd-networkd[2335]: enp0s9:
Serializing NDisc route (configured): dst: 2603:c020:4016:8201::/64, src: n/a,
gw: n/a, prefsrc: n/a, scope: global, table: main(254), proto: ra, type:
unicast, nexthop: 0, priority: 100, flags: n/a
2025-07-04T00:36:12.842120+00:00 noble systemd-networkd[2335]: enp0s9:
Serializing DHCPv4 route (configured): dst: 10.0.2.1/32, src: n/a, gw: n/a,
prefsrc: 10.0.2.128, scope: link, table: main(254), proto: dhcp, type: unicast,
nexthop: 0, priority: 100, flags: n/a
2025-07-04T00:36:12.842138+00:00 noble systemd-networkd[2335]: enp0s9:
Serializing DHCPv4 route (configured): dst: 169.254.169.254/32, src: n/a, gw:
n/a, prefsrc: 10.0.2.128, scope: link, table: main(254), proto: dhcp, type:
unicast, nexthop: 0, priority: 100, flags: n/a
2025-07-04T00:36:12.842159+00:00 noble systemd-networkd[2335]: enp0s9:
Serializing DHCPv4 route (configured): dst: n/a, src: n/a, gw: 10.0.2.1,
prefsrc: 10.0.2.128, scope: global, table: main(254), proto: dhcp, type:
unicast, nexthop: 0, priority: 100, flags: n/a
2025-07-04T00:36:12.842180+00:00 noble systemd-networkd[2335]: enp0s9:
Serializing NDisc route (configured): dst: n/a, src: n/a, gw:
fe80::200:17ff:fed4:8801, prefsrc: n/a, scope: global, table: main(254), proto:
ra, type: unicast, nexthop: 0, priority: 100, flags: n/a
2025-07-04T00:36:12.842201+00:00 noble systemd-networkd[2335]: Serialization
completed.
2025-07-04T00:36:12.888023+00:00 noble systemd-networkd[2343]: Deserializing...
2025-07-04T00:36:12.888043+00:00 noble systemd-networkd[2343]: enp0s9:
Deserialized DHCPv4 address (configured): 10.0.2.128/24 broadcast 10.0.2.255
(valid forever, preferred forever), flags: permanent, scope: global, label: n/a
2025-07-04T00:36:12.888061+00:00 noble systemd-networkd[2343]: enp0s9:
Deserialized DHCPv4 route (configured): dst: 169.254.0.0/16, src: n/a, gw: n/a,
prefsrc: 10.0.2.128, scope: link, table: main(254), proto: dhcp, type: unicast,
nexthop: 0, priority: 100, flags: n/a
2025-07-04T00:36:12.888080+00:00 noble systemd-networkd[2343]: enp0s9:
Deserialized NDisc route (configured): dst: 2603:c020:4016:8201::/64, src: n/a,
gw: n/a, prefsrc: n/a, scope: global, table: main(254), proto: ra, type:
unicast, nexthop: 0, priority: 100, flags: n/a
2025-07-04T00:36:12.888103+00:00 noble systemd-networkd[2343]: enp0s9:
Deserialized DHCPv4 route (configured): dst: 10.0.2.1/32, src: n/a, gw: n/a,
prefsrc: 10.0.2.128, scope: link, table: main(254), proto: dhcp, type: unicast,
nexthop: 0, priority: 100, flags: n/a
2025-07-04T00:36:12.888125+00:00 noble systemd-networkd[2343]: enp0s9:
Deserialized DHCPv4 route (configured): dst: 169.254.169.254/32, src: n/a, gw:
n/a, prefsrc: 10.0.2.128, scope: link, table: main(254), proto: dhcp, type:
unicast, nexthop: 0, priority: 100, flags: n/a
2025-07-04T00:36:12.888146+00:00 noble systemd-networkd[2343]: enp0s9:
Deserialized DHCPv4 route (configured): dst: n/a, src: n/a, gw: 10.0.2.1,
prefsrc: 10.0.2.128, scope: global, table: main(254), proto: dhcp, type:
unicast, nexthop: 0, priority: 100, flags: n/a
2025-07-04T00:36:12.888165+00:00 noble systemd-networkd[2343]: enp0s9:
Deserialized NDisc route (configured): dst: n/a, src: n/a, gw:
fe80::200:17ff:fed4:8801, prefsrc: n/a, scope: global, table: main(254), proto:
ra, type: unicast, nexthop: 0, priority: 100, flags: n/a
2025-07-04T00:36:12.888183+00:00 noble systemd-networkd[2343]: Deserialization
completed.
<Verify that the IP address is removed when KeepConfiguration=no is set>
> ip a
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 noprefixroute
valid_lft forever preferred_lft forever
2: enp0s9: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc mq state UP group
default qlen 1000
link/ether 02:00:17:02:88:da brd ff:ff:ff:ff:ff:ff
inet6 fe80::17ff:fe02:88da/64 scope link
valid_lft forever preferred_lft forever
inet6 fe80::a34d:454:12eb:550b/64 scope link
valid_lft forever preferred_lft forever
<Verify networkctl command with --json=pretty>
Confirmed that the `networkctl --json=pretty` command executes successfully.
** Tags removed: verification-needed verification-needed-noble
** Tags added: verification-done verification-done-noble
--
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2098183
Title:
Preserve IPv6 configurations when `KeepConfiguration=dhcp-on-stop` is
set
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