diff --git a/src/common.h b/src/common.h
index e50ad0a..ddb6fd4 100644
--- a/src/common.h
+++ b/src/common.h
@@ -143,8 +143,8 @@ typedef ULONG_PTR DWORD_PTR, *PDWORD_PTR;
 #define		SUCC 							1
 #define		FAIL 							0
 
-#define		MAX_NET_BUF_SIZE				(80*1024)
-#define		MAX_MSG_BUF_SIZE				81920
+#define		MAX_NET_BUF_SIZE				(1024*1024)
+#define		MAX_MSG_BUF_SIZE				(1024*1024)
 
 #define 	NET_MAC_LEN						6