--- esp_sdk/include/user_interface.h.org	2016-01-01 21:22:29.000000000 +0200
+++ esp_sdk/include/user_interface.h	2015-09-22 04:13:52.000000000 +0300
@@ -275,6 +275,7 @@
 };
 
 struct dhcps_lease {
+	bool enable;
 	struct ip_addr start_ip;
 	struct ip_addr end_ip;
 };