[Bug 2063040] Re: network-manager 1.46.0-1ubuntu2 on noble causes IPv4 address removal when no DHCP server is present

[Dan Bungert]

Hi Andreas, thanks for the bug report.

Subscribing "Ubuntu Sponsors" is intended for when a patch is available,
which isn't the case yet for this bug.  For more details on that
process, I suggest reading
https://wiki.ubuntu.com/MOTU/Sponsorship/SponsorsQueue .

I'm removing Ubuntu Sponsors from the bug for now.

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https://bugs.launchpad.net/bugs/2063040

Title:
  network-manager 1.46.0-1ubuntu2 on noble causes IPv4 address removal
  when no DHCP server is present

Status in network-manager package in Ubuntu:
  New

Bug description:
  I tried using a noble VM using a "host-only" network connection (which does not have a DHCP server).
  After adding an IPv4 address manually (using the ip command),
  NetworkManager retries activating the network connection, which removes the address that was previously added.

  AFAIK, this does not happen on jammy.

  Reproduction steps:
  1. Create a host-only network connection
  2. Leave it on Automatic in the NetworkManager settings panel
  3. Add an IPv4 address manually using the ip command
  4. Wait for the "Connection failed" notification
  5. Check whether the configured address was removed

  The reproduction video is attached as a WebM.

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