IPADM_NVP_WAIT
if (strcmp(name, IPADM_NVP_WAIT) == 0)
nvlist_lookup_int32(v, IPADM_NVP_WAIT, &wait) != 0 ||
(err = nvlist_add_int32(nvl_dhcp, IPADM_NVP_WAIT, wait)) != 0 ||