Some of the libns unit tests override the isc_nmhandle_attach() and _detach() functions. This causes a failure in ns_interface_create() if a route socket is being used, so we add a parameter to disable it.
Some of the libns unit tests override the isc_nmhandle_attach() and _detach() functions. This causes a failure in ns_interface_create() if a route socket is being used, so we add a parameter to disable it.