must config twice cmd, unknown reasoon

src/vppe/src/vlib/unix/main.c

@@ -395,6 +395,7 @@ startup_config_process (vlib_main_t * vm,
           strcat(if_cmd, SET_INTER_NAT44);
           strcat(if_cmd, SET_NAT44_ADDRESS);
           strcat(if_cmd, IP_ROUTE_DEFAULT);
+          strcat(if_cmd, IP_ROUTE_DEFAULT);
           strcat(if_cmd, IP_ROUTE_DEFAULT);
 
 
@@ -404,6 +405,7 @@ startup_config_process (vlib_main_t * vm,
 		  if_info->if_n6.name, if_info->if_n6.gateway,
 		  if_info->if_n3.name, if_info->if_n6.name,if_info->if_n6.ipaddr,
 		  if_info->if_n3.gateway, 32, if_info->if_n3.name,
+		  if_info->if_n3.gateway, 32, if_info->if_n3.name,
 		  if_info->if_n6.gateway, 32, if_info->if_n6.name);
 
 		  vec_resize (buf, strlen(cmd));