** Description changed:

  [Impact]
  In an iSCSI boot scenario within an IPv6-only environment, the link remains 
in the "configuring" state when the DHCPv6-assigned address conflicts with an 
already configured address.
  Although network connectivity works as expected, this condition causes the 
systemd-networkd-wait-online service to time out during the boot process.
  
  [Fix]
  This issue has been resolved upstream.
  https://github.com/systemd/systemd/pull/37916
  
  [Test Plan]
  1. Set up an IPv6-only environment with iSCSI boot.
  2. Run the networkctl command and verify that no links remain in the 
"configuring" state.
+ 3. Restart the systemd-networkd-wait-online service and ensure that its 
status does not show the following:
+ × systemd-networkd-wait-online.service - Wait for Network to be Configured
+      Loaded: loaded 
(/usr/lib/systemd/system/systemd-networkd-wait-online.service; enabled; preset: 
enabled)
+     Drop-In: /run/systemd/system/systemd-networkd-wait-online.service.d
+              └10-netplan.conf
+      Active: failed (Result: exit-code) since Mon 2025-07-14 01:39:53 UTC; 
3min 20s ago
+        Docs: man:systemd-networkd-wait-online.service(8)
+     Process: 6141 ExecStart=/lib/systemd/systemd-networkd-wait-online -i 
ens300np0:degraded (code=exited, status=1/FAILURE)
+    Main PID: 6141 (code=exited, status=1/FAILURE)
+         CPU: 6ms
+ 
+ Jul 14 01:37:53 noble-bm systemd[1]: Starting 
systemd-networkd-wait-online.service - Wait for Network to be Configured...
+ Jul 14 01:39:53 noble-bm systemd-networkd-wait-online[6141]: Timeout occurred 
while waiting for network connectivity.
+ Jul 14 01:39:53 noble-bm systemd[1]: systemd-networkd-wait-online.service: 
Main process exited, code=exited, status=1/FAILURE
+ Jul 14 01:39:53 noble-bm systemd[1]: systemd-networkd-wait-online.service: 
Failed with result 'exit-code'.
+ Jul 14 01:39:53 noble-bm systemd[1]: Failed to start 
systemd-networkd-wait-online.service - Wait for Network to be Configured.
  
  [Where problems could occur]
  The commit introduces a new member variable to track this specific condition 
and updates the link status accordingly.
  If any regressions occur, the link status may become incorrect, potentially 
causing unexpected behavior in the systemd-networkd-wait-online service.

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https://bugs.launchpad.net/bugs/2115418

Title:
  systemd-networkd-wait-online service times out in IPv6-only
  environments

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