diff --git a/tunnel_client.cpp b/tunnel_client.cpp
index 907d9bb..e129f67 100644
--- a/tunnel_client.cpp
+++ b/tunnel_client.cpp
@@ -52,7 +52,7 @@ void data_from_local_or_fec_timeout(conn_info_t & conn_info,int is_time_out)
 
 		if(data_len==max_data_len+1)
 		{
-			mylog(log_warn,"huge packet, data_len > %d, packet truncated, dropped\n",max_data_len);
+			mylog(log_warn,"huge packet from upper level, data_len > %d, packet truncated, dropped\n",max_data_len);
 			return ;
 		}
 
diff --git a/tunnel_server.cpp b/tunnel_server.cpp
index 81f96d1..673aacc 100644
--- a/tunnel_server.cpp
+++ b/tunnel_server.cpp
@@ -93,7 +93,7 @@ void data_from_remote_or_fec_timeout_or_conn_timer(conn_info_t & conn_info,fd64_
 
 		if(data_len==max_data_len+1)
 		{
-			mylog(log_warn,"huge packet, data_len > %d, packet truncated, dropped\n",max_data_len);
+			mylog(log_warn,"huge packet from upper level, data_len > %d, packet truncated, dropped\n",max_data_len);
 			return ;
 		}