I had this issue with keepalived. there is an option to pass to systemd network config specified on the interface KeepConfiguration=yes
if you are using Ubuntu with netplan, the option is a bool critical: true in the interface section of the yaml file. hope this helps. On Wed, 28 Jan 2026, 16:45 Andrei Borzenkov, <[email protected]> wrote: > 27.01.2026 14:11, killermoehre wrote: > > > > don't configure interfaces outside of sd-networkd. > > Consider HA cluster where the primary address is managed by > systemd-networkd (or any other default network management stack) and the > secondary addresses are configured by the HA resource agents. >
