diff --git a/lwip/src/include/lwipopts.h b/lwip/src/include/lwipopts.h
index 5ef58054..5519e8a3 100644
--- a/lwip/src/include/lwipopts.h
+++ b/lwip/src/include/lwipopts.h
@@ -24,13 +24,27 @@
 /**
  * LWIP_DHCP==1: Enable DHCP module.
  */
-#define LWIP_DHCP 		1	
+#define LWIP_DHCP 		0	
 
 /**
  * LWIP_TCP==1: Turn on TCP.
  */
 #define LWIP_TCP		1
 
+/**
+ * LWIP_BROADCAST_PING==1: respond to broadcast pings (default is unicast only)
+ */
+#ifndef LWIP_BROADCAST_PING
+#define LWIP_BROADCAST_PING	1
+#endif
+
+/**
+ * LWIP_MULTICAST_PING==1: respond to multicast pings (default is unicast only)
+ */
+#ifndef LWIP_MULTICAST_PING
+#define LWIP_MULTICAST_PING	1
+#endif
+
 /* DEBUG options */
 #define LWIP_DEBUG		1
 #define DHCP_DEBUG		LWIP_DBG_ON