TFTP is used for its simplicity as it is specifically designed to read and write files without establishing a connection between the client and the server. TFTP cannot list directory and there is no error recovery like TCP and nor does it allow you to delete or rename files. It does not provide authentication and no command structure like FTP, SFTP and SCP. It is very useful for electronics circuit boards and microprocessors to download firmware into the chipset and its also used for transferring boot files and updating NVRAM. CISCO devices also use the TFTP protocol to store configuration files and images and move them to and from switches, routers and firewalls. Generally, TFTP is used to boot operating systems over the network.

It is commonly used in the place where security is not important and it has limited features compared to other file transfer protocols (FTP/FTPS/SCP).

TFTP runs on UDP port 69 and does not use any security during the file transfer, thus its really only good for transferring files within your LAN. If you create an empty file with the same name and edit its access rights, the above upload process will be successful.TFTP stands for “ Trivial File Transfer Protocol” is a simple and lightweight protocol for transferring files over the network. In other words, it is not possible to upload a file that does not exist on the TFTP server via TFTP clients. TFTP requires that a file with the same name should be in the directory where the file will be written as a prerequisite for a file upload and that the write access for this file should be available to everyone. The problem here is because of some security procedures on the TFTP server. Since the error message returned is not self-explanatory, it is difficult to understand what the real problem is. 100Īlthough the above command is correct, you will get an error while transferring the file to your TFTP server. To send a sample file to the TFTP server, you need to use a command like this: busybox tftp -l example. To use the TFTP client application, issue the busybox tftp command: busybox tftp In such cases, since the TFTP client will probably be compiled in busybox, you can send a file saved in the system to a TFTP server on a network.

Setting up tftp server