TFTP Server

Features

Managed TFTP server implementation with the following features:

Open source
works both in IPv4 and IPv6 mode.
correct retry behavior
supports the following TFTP options: block size, transfer size, and timeout.
it's possible to run in single port mode: this ensures that only port 69 will be used for TFTP transfers, simplifying firewall and router configuration.
supports many concurrent transfers.
as of 1.2 beta : supports windowed mode, enabling high speed downloads.
Runs as windows service.
Supports multiple TFTP servers on different endpoints, each serving its own root directory.
Advanced MSI based installer.
Logs to the windows event log.
permissive MIT license so it can be used in commercial projects.

Screenshots

See Screenshots.

Tested clients

The server has been successfully tested with the following clients:

my multiplatform graphical desktop TFTP client: Avalonia-TFTPClient
my TFTP client library TFTPClient
windows 7 TFTP
Win32: TFTPD32 by Philippe Jounin
ubuntu/linux Advanced TFTP client, ATFTP
ubuntu/linux TFTP
ubuntu/linux TFTP-hpa
B&R PLC bootloader

Tested platforms (so far)

64 bit Windows 11
64 bit Windows 10
64 bit Windows 7
32 bit Windows XP
64 bit Windows Vista
Linux! The main TFTP library compiles and runs without modifications in Mono . All I had to do was create a small console app that instantiates the TFTPServer class.