TFTP is an internet software utility for transferring file that simpler to use than FTP but less capable.

1. It is used where user authentication and directory visibility are not req

2. TFTP use the UDP protocol

3. Due to its simple design TFTP can be easily implemented by small footprint code.

4. TFTP uses the port no.69

5. TFTP is generally only used on LAN network.

TFTP message types

RRQ -> Request to read file

WRQ -> Request to write file

DATA -> Contains a block of the data

ACK -> used by peer to acknowledge each block of data

ERROR -> used by peer to indicate erroneous application