TFTP-Trivial File Protocol

TFTP is a network protocol used to transfer files between remote machines. It is a simple version of FTP, lacking some of the more advanced features FTP offers, but requiring less resources than FTP.

 

Because of it’s simplicity TFTP can be used only to send and receive files. It uses UDP port 69 for communication.

 

Because of it’s disadvantages TFTP is not widely used today, but it’s used to save and restore a router configuration or to backup an IOS image.

 

TFTP doesn’t support user authentication and sends all data in clear text