Public bug reported:
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.
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: noble
** Attachment added: "Reproduction video"
https://bugs.launchpad.net/bugs/2063040/+attachment/5768774/+files/NetworkManager%20Bug.webm
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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
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