diff --git a/Common/config_manager.h b/Common/config_manager.h
index fcd26b98d..64d418177 100755
--- a/Common/config_manager.h
+++ b/Common/config_manager.h
@@ -53,11 +53,4 @@
 
 /************************ config id定义 end**********************/
 
-
-/* error no, 32位，前16位为模块ID，后16位为模块错误码 */
-
-/*0x00000000 ~ 0x0000ffff 为系统预留错误码，用于一般性系统错误，例如内存不够，输入错误等*/
-
-/* NETCONFIG_MODULE */
-#define NETCONFIG_IPVALID (uint)((uint)NETCONFIG_MODULE<<16|1)
 #endif
diff --git a/Common/ret_errno.h b/Common/ret_errno.h
new file mode 100644
index 000000000..f7eaf757a
--- /dev/null
+++ b/Common/ret_errno.h
@@ -0,0 +1,56 @@
+#ifndef _RET_ERRNO_H
+#define _RET_ERRNO_H
+
+#include "config_manager.h"
+
+/* error no, 32位，前16位为模块ID，后16位为模块错误码 */
+typedef uint ret_code;
+
+
+/*0x00000000 ~ 0x0000ffff 为系统预留错误码，用于一般性系统错误，例如内存不够，输入错误等*/
+
+/* RPC ret code 0x00000000 ~ 0x0000ffff*/
+#define    RET_OK          0
+#define    RET_ERR         1
+#define    RET_UNKNOWN     2
+#define    RET_SYSERR      3
+#define    RET_NOTFOUND    4
+#define    RET_TIMEOUT     5
+
+#define    RET_NULLP       6
+#define    RET_NOMEM       7
+#define    RET_CHKERR      8
+#define    RET_NOTSUPPORT  9
+#define    RET_INPUTERR    10
+#define    RET_EXIST       11
+#define    RET_FULL        12
+#define    RET_SENDERR     13
+
+/* NETCONFIG_MODULE 0x00010000 ~ 0x0001ffff*/
+#define RET_IPINVALID         (uint)((uint)NETCONFIG_MODULE<<16|1)
+#define RET_BRNAMEERR         (uint)((uint)NETCONFIG_MODULE<<16|1)
+
+
+/* 错误码描述 */
+#define RET_ERROR_DISC \
+{ \
+    { RET_OK,         "OK" }, \
+    { RET_ERR,        "Error" },\
+    { RET_UNKNOWN,    "Unkown" },\
+    { RET_SYSERR,     "SystemError" },\
+    { RET_NOTFOUND,   "NotFound" }, \
+    { RET_TIMEOUT,    "Timeout" }, \
+    { RET_NULLP,      "NullPointer" } ,\
+    { RET_NOMEM,      "NotEnoughMemery"},\
+    { RET_CHKERR,     "CheckError"},\
+    { RET_NOTSUPPORT, "NotSupport"},\
+    { RET_INPUTERR,   "InputError"},\
+    { RET_EXIST,      "AlreadyExist"},\
+    { RET_FULL,       "Full"},\
+    { RET_SENDERR,    "SendErr"},\
+    { RET_IPINVALID,  "IpInvalid"},\
+    { RET_BRNAMEERR,  "BrNameInvalid"}\
+}
+
+#endif
+
diff --git a/Platform/common/rpc/rpc_common.h b/Platform/common/rpc/rpc_common.h
index 08302bf24..7e91b2ca9 100755
--- a/Platform/common/rpc/rpc_common.h
+++ b/Platform/common/rpc/rpc_common.h
@@ -9,7 +9,7 @@
 #define RPC_COMMON_H_
 
 #include "rpc_types.h"
-
+#include "ret_errno.h"
 
 #define WORKER_LEN 4
 #define BACKLOG 5
@@ -19,53 +19,6 @@
 #define TIMEOUT 15
 #define TIMEWARN 200
 
-typedef enum {
-    /* RPC ret code */
-	RET_OK = 0,
-    RET_ERR = 1,
-	RET_UNKNOWN = 2,
-	RET_SYSERR  = 3,
-	RET_NOTFOUND = 4,
-	RET_TIMEOUT = 5,
-
-    RET_NULLP  = 6,
-    RET_NOMEM  = 7,
-    RET_CHKERR = 8,
-    RET_EXCEERR = 9,
-    RET_SOCKERR = 10,
-    RET_NOTSUPPORT = 11,
-    RET_INPUTERR = 12,
-    RET_IPINVALID = 13,
-    RET_NAMEINVAL = 14,
-    RET_EXIST = 15,
-    RET_FULL = 16,
-    RET_SENDERR = 17
-} ret_code;
-
-#define RET_ERROR_DISC \
-{ \
-    { RET_OK,         "OK" }, \
-    { RET_ERR,        "Error" },\
-    { RET_UNKNOWN,    "Unkown" },\
-    { RET_SYSERR,     "SystemError" },\
-    { RET_NOTFOUND,   "NotFound" }, \
-    { RET_TIMEOUT,    "Timeout" }, \
-    { RET_NULLP,      "NullPointer" } ,\
-    { RET_NOMEM,      "NotEnoughMemery"},\
-    { RET_CHKERR,     "CheckError"},\
-    { RET_EXCEERR,    "ExecutError"},\
-    { RET_SOCKERR,    "SockError"},\
-    { RET_NOTSUPPORT, "NotSupport"},\
-    { RET_INPUTERR,   "InputError"},\
-    { RET_IPINVALID,  "IpInvalid"},\
-    { RET_NAMEINVAL,  "NameInvalid"},\
-    { RET_EXIST,      "AlreadyExist"},\
-    { RET_FULL,       "Full"},\
-    { RET_SENDERR,    "SendErr"}\
-}
-
-#define RET_BUFF_SIZE 256;
-
 typedef enum {
 	RPC_Parse_OK = 0, RPC_Parse_NeedData = 1, RPC_Parse_Error = 2
 } rpc_parse_result;
diff --git a/Platform/user/configm/config-server/nat_config/natconfig.c b/Platform/user/configm/config-server/nat_config/natconfig.c
index 6492bc4d3..b6ba11db0 100644
--- a/Platform/user/configm/config-server/nat_config/natconfig.c
+++ b/Platform/user/configm/config-server/nat_config/natconfig.c
@@ -73,7 +73,7 @@ ret_code if_ioctl(unsigned long request, caddr_t ifreq, int *ret)
     if (sock < 0) 
     {
         rpc_log_error("Cannot create UDP socket");
-        return RET_SOCKERR;
+        return RET_SYSERR;
     }
     if ((*ret = ioctl(sock, request, ifreq)) < 0)
     {
diff --git a/Platform/user/configm/config-server/netconfig/bridge/brconfig.c b/Platform/user/configm/config-server/netconfig/bridge/brconfig.c
index 391aea344..8613879b3 100644
--- a/Platform/user/configm/config-server/netconfig/bridge/brconfig.c
+++ b/Platform/user/configm/config-server/netconfig/bridge/brconfig.c
@@ -127,11 +127,11 @@ ret_code br_name_chk(char *br_name)
        || strlen(br_name) > BR_NAMSIZ - 1
        || strstr(br_name, "br-vl") != NULL)
     {
-        return RET_NAMEINVAL;
+        return RET_BRNAMEERR;
     }
     if(br_name[0] != 'b' || br_name[1] != 'r')
     {
-        return RET_NAMEINVAL;
+        return RET_BRNAMEERR;
     }
 
     return RET_OK;
diff --git a/Platform/user/configm/config-server/netconfig/ifconfig.c b/Platform/user/configm/config-server/netconfig/ifconfig.c
index d7c2a39ae..f22483d05 100644
--- a/Platform/user/configm/config-server/netconfig/ifconfig.c
+++ b/Platform/user/configm/config-server/netconfig/ifconfig.c
@@ -33,7 +33,7 @@ ret_code if_ioctl(unsigned long request, caddr_t ifreq, int *ret)
     if (sock < 0) 
     {
         rpc_log_error("Cannot create UDP socket");
-        return RET_SOCKERR;
+        return RET_SYSERR;
     }
     if ((err = ioctl(sock, request, ifreq)) < 0)
     {