<:: TFTPClient ::> put 512k The acknowledgement # 0 packet is recieved from the server. Sending Data packet # 1 (512 bytes) Packet with Invalid Tid received. Expecting Source Tid: /127.0.0.1:2577 Received Source Tid : /127.0.0.1:2580 Error packet 5 sent to invalid TID : /127.0.0.1:2580 The acknowledgement # 1 packet is recieved from the server. Sending Data packet # 2 (0 bytes) The last ack packet # 2 is received from the server The file is sent to the server. <:: TFTPClient ::> put 512k Error packet as received from the server. ERROR CODE : 6 ERROR MESSAGE : File already exists : "512k" <:: TFTPClient ::> put 512k The acknowledgement # 0 packet is recieved from the server. Sending Data packet # 1 (512 bytes) The acknowledgement # 1 packet is recieved from the server. Sending Data packet # 2 (0 bytes) ERROR: The last recieved packet was not ACK. <:: TFTPClient ::>