COMPUTER NETWORKING

Detailed explanation-1: -TFTP is a simple protocol for transferring files, implemented on top of the UDP/IP protocols using well-known port number 69. TFTP was designed to be small and easy to implement, and therefore it lacks most of the advanced features offered by more robust file transfer protocols.

Detailed explanation-2: -Trivial File Transfer Protocol (TFTP) uses TCP port 69. It is used mostly for booting UNIX or UNIX-like systems that do not have a local disk (this process is also known as netbooting) and for storing and retrieving configuration files for devices such as Cisco routers and switches.

Detailed explanation-3: -UDP/69-The TFTP server uses this port for TFTP transfers.

Detailed explanation-4: -A proxy is blocking port 69-If the “netstat-a” test reveals that port 69/TFTP is only in use when the Cannot Start TFTP Server. A TFTP Server is running on port 69 message appears, then it is likely that a proxy server on your network is blocking port 69.