I agree, a user-configured setting should be honored. Another thing to consider is that according to the Jammy systemd.network man page, the default should be 'ipv6' so one would expect that to be a global default, but it gets overridden for link-local IPs due to this commit.
[1] https://manpages.ubuntu.com/manpages/jammy/man5/systemd.network.5.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964494 Title: Setting DuplicateAddressDetection=none doesn't disable DAD for link- local IPs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1964494/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs