When you want to get that you use for getting option but you can also can not afford to down get detailed info about what those times, this command will be helpful.
EDIT: oh, I forgot that my "network configurator" that gui network thing doesn't work either anymore. This is useful to configure both IPv4 and IPv6 addresses on the same interface although if no inet6 stanza is present, the kernel will normally still perform stateless address autoconfiguration if there is an IPv6 route advertisement daemon on the network. Interface renaming only works if the operating system supports it, if an interface is not renamed to another existing interface, and may require that the interface that is to be renamed has not been brought up yet.
