diff --git a/bsp/ls1cdev/rtconfig.h b/bsp/ls1cdev/rtconfig.h
index 07eed9e2be..168d3a7fda 100644
--- a/bsp/ls1cdev/rtconfig.h
+++ b/bsp/ls1cdev/rtconfig.h
@@ -179,21 +179,16 @@
 #define RT_LWIP_ETHTHREAD_MBOX_SIZE	8
 // <integer name="RT_LWIP_ETHTHREAD_STACKSIZE" description="the stack size of ethnetif thread" default="512" />
 #define RT_LWIP_ETHTHREAD_STACKSIZE	512
-// <ipaddr name="RT_LWIP_IPADDR" description="IP address of device" default="192.168.1.30" />
-#define RT_LWIP_IPADDR0 192
-#define RT_LWIP_IPADDR1 168
-#define RT_LWIP_IPADDR2 1
-#define RT_LWIP_IPADDR3 254
-// <ipaddr name="RT_LWIP_GWADDR" description="Gateway address of device" default="192.168.1.1" />
-#define RT_LWIP_GWADDR0 192
-#define RT_LWIP_GWADDR1 168
-#define RT_LWIP_GWADDR2 1
-#define RT_LWIP_GWADDR3 3
-// <ipaddr name="RT_LWIP_MSKADDR" description="Mask address of device" default="255.255.255.0" />
-#define RT_LWIP_MSKADDR0 255
-#define RT_LWIP_MSKADDR1 255
-#define RT_LWIP_MSKADDR2 255
-#define RT_LWIP_MSKADDR3 0
+
+/* ip address of target */
+#define RT_LWIP_IPADDR "192.168.1.254"
+
+/* gateway address of target */
+#define RT_LWIP_GWADDR  "192.168.1.1"
+
+/* mask address of target */
+#define RT_LWIP_MSKADDR  "255.255.255.0"
+
 // </section>
 
 // <section name="RT_USING_MODULE" description="Application module" default="true" >