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Which is udp port does tftp use?


Asked by Bradley Owens on Dec 13, 2021 FAQ



TFTP uses UDP port 69 and requires no authentication—clients read from, and write to servers using the datagram format outlined in RFC 1350. Due to deficiencies within the protocol (namely lack of authentication and no transport security), it is uncommon to find servers on the public Internet.
Furthermore,
Trivial File Transfer Protcol (TFTP) uses UDP/IP which is port 69. UDP is known as User Datagram Protocol which is consider as connectionless protocol. TFTP uses UDP to transfer files continuously without establishing any session.
In addition, FTP is described in RFC 959. It uses TCP port 21 as control channel using telnet protocol and a TCP data connection for actual file transfer. A variant, tftp, designed to work over UDP as per RFC 1350 but can be implemented over TCP as well. , into networking, protocols, real-time, streaming, etc.
Besides,
UDP is known as User Datagram Protocol which is consider as connectionless protocol. TFTP uses UDP to transfer files continuously without establishing any session. It is best/commonly used in local area network. The reason is because there is no security mechanism to ensure the data transfer and received is secure over the Internet.
Likewise,
FTP uses separate TCP connection to transfer binary data or output. There is another protocol called Trivial File Transfer Protocol (TFTP) which uses UDP protocol to transfer files. TFTP has minimal features and doesn't have authentication.