Example for Using TFTP to Access Other Devices

You can run the TFTP software on the TFTP server and set the directory of source files on the server to upload and download files.

Networking Requirements

In the TCP/IP protocol suite, FTP is most commonly used to transfer files. However, FTP brings complex interactions between terminals and servers, which is hard to implement on terminals that do not run advanced operating systems. TFTP is designed for file transfer that does not require complex interactions between terminals and servers. It is simple, requiring a few costs. TFTP can be used only for simple file transfer without authentication.

As shown in Figure 1, you can log in to the TFTP client from a PC and upload files to or download files from the TFTP server.

Figure 1 Using TFTP to access another device

Configuration Roadmap

The configuration roadmap is as follows:

Run the TFTP software on the TFTP server and set the directory of source files on the server.
Use TFTP commands on the TFTP client to download files.
Use TFTP commands on the TFTP client to upload files.

Data Preparation

To complete the configuration, you need the following data:

TFTP software to be installed on the TFTP server
Name of the file to be downloaded and path of the file on the TFTP server
Name of the file to be uploaded and path of the file on the TFTP client

Procedure

Enable the TFTP server function.

In the Current Directory column, set the directory in which the file to be downloaded resides on the TFTP server, as shown in Figure 2.

Figure 2 Setting the current directory on the TFTP server

The displayed window may vary with the TFTP software.

Run the tftpservermt command on the client to enter the TFTP server path and run the following command:

/home/tftpservermt # ./tftpserver -v -i tftpserver.ini
TFTP Server MultiThreaded Version 1.61 Unix Built 1611
starting TFTP...
username: root
alias / is mapped to /home/
permitted clients: all
server port range: all
max blksize: 65464
default blksize: 512
default timeout: 3
file read allowed: Yes
file create allowed: Yes
file overwrite allowed: Yes
thread pool size: 1
listening on: 0.0.0.0:69
Accepting requests..

<HUAWEI> tftp 10.18.26.141 get a.txt cfcard:/b.txt
Warning: cfcard:/b.txt exists, overwrite? Please select
[Y/N]:y
Transfer file in binary mode.
Please wait for a while...
/
3338 bytes transferred
File transfer completed

Verify the configuration.

Run the dir command on the TFTP client to view the directory in which the downloaded file is saved.

<HUAWEI> dir
Directory of 0/17#cfcard:/


  Idx  Attr     Size(Byte)  Date        Time(LMT)   FileName
    0  -rw-     3,338       Jan 25 2011  09:27:41   b.txt
    1  -rw-     103,265,123 Jan 25 2011  06:49:07   V800R021C00SPC100B020D0123.cc
    2  -rw-     92,766,274  Jan 25 2011  06:49:10   V800R021C00SPC100SPC007B008D1012.cc

109,867,396 KB total (102,926,652 KB free)

<HUAWEI> tftp 10.111.16.160 put sample.txt
  Info: Transfer file in binary mode.
Please wait for a while...
\     100% [***********]
File transfer completed

Configuration Files

None