- Added support for detecting duplicate IPv4 addresses, with a timeout configurable through the ipv4.dad-timeout connection property.
dad-timeout / int32 / -1
Timeout in milliseconds used to check for the presence of duplicate IP addresses on the network. If an address conflict is detected, the activation will fail. A zero value means that no duplicate address detection is performed, -1 means the default value (either configuration
ipvx.dad-timeoutoverride or zero). A value greater than zero is a timeout in milliseconds. The property is currently implemented only for IPv4.
Quote taken from the manual for NetworkManager, as of version 1.14.4.
I failed to find
ipvx.dad-timeout documented anywhere. It is described as an "override", not a default. So it sounds more likely that
ipvx.dad-timeout is not set by default. In other words, the default is not to enable IPv4 Duplicate Address Detection. Is that right?