diff --git a/df_datalink_sp/src/networking/link_layer/msg_def.h b/df_datalink_sp/src/networking/link_layer/msg_def.h
index e22067d..93c0184 100644
--- a/df_datalink_sp/src/networking/link_layer/msg_def.h
+++ b/df_datalink_sp/src/networking/link_layer/msg_def.h
@@ -79,6 +79,10 @@
 #define L2_MSG_CFM_SRC_SPEEDY_LEN 4
 #define L2_MSG_CFM_SRC_SPEEDZ 28
 #define L2_MSG_CFM_SRC_SPEEDZ_LEN 4
+#define L2_MSG_CFM_PAYLOAD_ID 32
+#define L2_MSG_CFM_PAYLOAD_ID_LEN 4
+#define L2_MSG_CFM_PAYLOAD 36
+#define L2_MSG_CFM_PAYLOAD_LEN 230
 #define L2_MSG_CFM_CRC 266
 #define L2_MSG_CFM_CRC_LEN 2
 
diff --git a/df_datalink_sp/src/networking/link_layer/scan.c b/df_datalink_sp/src/networking/link_layer/scan.c
index d7bfcef..41dfc39 100644
--- a/df_datalink_sp/src/networking/link_layer/scan.c
+++ b/df_datalink_sp/src/networking/link_layer/scan.c
@@ -360,6 +360,23 @@ static int32_t ScanMsg_Packing(L2_INST *instPtr, L2_FRAME_TYPE type, uint8_t dst
 		L2_FrameInsertChunk(buff, L2_MSG_CFM_SRC_SPEEDY, L2_MSG_CFM_SRC_SPEEDY_LEN, &(instPtr->sysInfo.vY));
 		L2_FrameInsertChunk(buff, L2_MSG_CFM_SRC_SPEEDZ, L2_MSG_CFM_SRC_SPEEDZ_LEN, &(instPtr->sysInfo.vZ));
 
+		// Packing extra payload
+		uint32_t dataId;
+		if(L2_GetNodeType(instPtr) == L2_NODE_HEAD)
+		{
+			SysMonitor_GetSendPayload(buff + L2_MSG_CFM_PAYLOAD, &dataId, PAYLOAD_LEN_FLJ_TX);
+		}
+		else
+		{
+			SysMonitor_GetSendPayload(buff + L2_MSG_CFM_PAYLOAD, &dataId, PAYLOAD_LEN_LJ_TX);
+		}
+
+		L2_FrameInsertChunk(buff, L2_MSG_CFM_PAYLOAD_ID, L2_MSG_CFM_PAYLOAD_ID_LEN, &dataId);
+		if (dataId == DATA_ID_NONE)
+		{
+			memset(buff + L2_MSG_CFM_PAYLOAD, 0xAA, L2_MSG_CFM_PAYLOAD_LEN);
+		}
+
 		// Append CRC
 		Status = L2_CrcAppend(buff, L2_CMF_PACK_LEN - L2_MSG_CFM_CRC_LEN, L2_MSG_CFM_CRC, L2_CRC16_1021);
 		if (Status != SUCCESS)
@@ -637,6 +654,23 @@ int32_t L2_Scan_PktHandler(L2_INST *instPtr, uint8_t *msg)
 			// Time sync.
 			L2_TimeAdjust(instPtr, &(instPtr->log.timeDev));
 		}
+
+		// Get data payload
+		uint32_t dataId;
+		L2_FrameGetChunk(msg, L2_MSG_CFM_PAYLOAD_ID, L2_MSG_CFM_PAYLOAD_ID_LEN, &dataId);
+
+		if(dataId != DATA_ID_NONE)
+		{
+			if(L2_GetNodeType(instPtr) == L2_NODE_HEAD)
+			{
+				SysMonitor_UpdateRecvPayload(msg+L2_MSG_CFM_PAYLOAD, PAYLOAD_LEN_FLJ_RX);
+			}
+			else
+			{
+				SysMonitor_UpdateRecvPayload(msg+L2_MSG_CFM_PAYLOAD, PAYLOAD_LEN_LJ_RX);
+			}
+		}
+
 		Status = SUCCESS;
 		break;
 	}