diff --git a/components/net/lwip-1.4.1/src/lwipopts.h b/components/net/lwip-1.4.1/src/lwipopts.h
index 0b7e092d6c..9148066d50 100644
--- a/components/net/lwip-1.4.1/src/lwipopts.h
+++ b/components/net/lwip-1.4.1/src/lwipopts.h
@@ -222,6 +222,13 @@
 #define LWIP_DBG_TYPES_ON           (LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH|LWIP_DBG_HALT)
 
 /* ---------- Memory options ---------- */
+#ifdef RT_USING_ASM_MEMCPY
+#define MEMCPY(dst,src,len)             rt_memcpy(dst,src,len)
+#else
+#define MEMCPY(dst,src,len)             memcpy(dst,src,len)
+#endif /* RT_USING_ASM_MEMCPY */
+#define SMEMCPY(dst,src,len)            MEMCPY(dst,src,len)
+
 #define MEM_ALIGNMENT               4
 
 #define MEM_LIBC_MALLOC             1
diff --git a/components/net/lwip-2.0.2/src/lwipopts.h b/components/net/lwip-2.0.2/src/lwipopts.h
index d559684c02..fdfe1437b2 100644
--- a/components/net/lwip-2.0.2/src/lwipopts.h
+++ b/components/net/lwip-2.0.2/src/lwipopts.h
@@ -230,14 +230,21 @@
 #define LWIP_DBG_TYPES_ON           (LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH|LWIP_DBG_HALT)
 
 /* ---------- Memory options ---------- */
+#ifdef RT_USING_ASM_MEMCPY
+#define MEMCPY(dst,src,len)             rt_memcpy(dst,src,len)
+#else
+#define MEMCPY(dst,src,len)             memcpy(dst,src,len)
+#endif /* RT_USING_ASM_MEMCPY */
+#define SMEMCPY(dst,src,len)            MEMCPY(dst,src,len)
+
 #ifdef RT_LWIP_MEM_ALIGNMENT
 #define MEM_ALIGNMENT RT_LWIP_MEM_ALIGNMENT
 #else
 #define MEM_ALIGNMENT               4
 #endif
 
-#define MEMP_OVERFLOW_CHECK         1 ////
-#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 1 ////
+#define MEMP_OVERFLOW_CHECK         1
+#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 1
 //#define MEM_LIBC_MALLOC             1
 //#define MEM_USE_POOLS               1
 //#define MEMP_USE_CUSTOM_POOLS       1
diff --git a/components/net/lwip-2.0.3/src/lwipopts.h b/components/net/lwip-2.0.3/src/lwipopts.h
index d559684c02..fdfe1437b2 100644
--- a/components/net/lwip-2.0.3/src/lwipopts.h
+++ b/components/net/lwip-2.0.3/src/lwipopts.h
@@ -230,14 +230,21 @@
 #define LWIP_DBG_TYPES_ON           (LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH|LWIP_DBG_HALT)
 
 /* ---------- Memory options ---------- */
+#ifdef RT_USING_ASM_MEMCPY
+#define MEMCPY(dst,src,len)             rt_memcpy(dst,src,len)
+#else
+#define MEMCPY(dst,src,len)             memcpy(dst,src,len)
+#endif /* RT_USING_ASM_MEMCPY */
+#define SMEMCPY(dst,src,len)            MEMCPY(dst,src,len)
+
 #ifdef RT_LWIP_MEM_ALIGNMENT
 #define MEM_ALIGNMENT RT_LWIP_MEM_ALIGNMENT
 #else
 #define MEM_ALIGNMENT               4
 #endif
 
-#define MEMP_OVERFLOW_CHECK         1 ////
-#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 1 ////
+#define MEMP_OVERFLOW_CHECK         1
+#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 1
 //#define MEM_LIBC_MALLOC             1
 //#define MEM_USE_POOLS               1
 //#define MEMP_USE_CUSTOM_POOLS       1
diff --git a/components/net/lwip-2.1.2/src/lwipopts.h b/components/net/lwip-2.1.2/src/lwipopts.h
index 2cd7cb023a..a964ab13ac 100644
--- a/components/net/lwip-2.1.2/src/lwipopts.h
+++ b/components/net/lwip-2.1.2/src/lwipopts.h
@@ -242,9 +242,16 @@
 #endif
 
 /* ---------- Memory options ---------- */
+#ifdef RT_USING_ASM_MEMCPY
+#define MEMCPY(dst,src,len)             rt_memcpy(dst,src,len)
+#else
+#define MEMCPY(dst,src,len)             memcpy(dst,src,len)
+#endif /* RT_USING_ASM_MEMCPY */
+#define SMEMCPY(dst,src,len)            MEMCPY(dst,src,len)
+
 #define MEM_ALIGNMENT               4
-#define MEMP_OVERFLOW_CHECK         1 ////
-#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 1 ////
+#define MEMP_OVERFLOW_CHECK         1
+#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 1
 //#define MEM_LIBC_MALLOC             1
 //#define MEM_USE_POOLS               1
 //#define MEMP_USE_CUSTOM_POOLS       1