Windows TFTP Client Command Line Example

TFTP, or Trivial File Transfer Protocol, is a lightweight protocol used for transferring files over IP networks. In this article, we will explore the use of a TFTP client in Windows and provide an example of how to use it from the command line.

Understanding TFTP

Before we dive into using the TFTP client, let's take a brief look at how TFTP works. TFTP uses the User Datagram Protocol (UDP) to send and receive data packets. Each data packet is 512 bytes long, with the last packet containing between 0 and 511 bytes of data. Acknowledgement packets are used to confirm the receipt of each data packet, and if a packet is not acknowledged within a certain time frame, the sender will repeat the data packet until it is confirmed.

Using the TFTP Client

To use the TFTP client in Windows, you can download and install the free open-source tftpd64 tool. Once installed, you can access the TFTP client from the command line by typing 'tftp' followed by the IP address of the TFTP server and the port number (69 by default).

Here is an example of how to use the TFTP client to download a file from a TFTP server:

```

tftp 192.168.1.100 -c get filename.txt

```

This command will connect to the TFTP server at IP address 192.168.1.100, specify the port number (69 by default), and download the file 'filename.txt' to your local machine.

Using the TFTP Client with PowerShell

You can also use the TFTP client with PowerShell to create a Windows Firewall rule that allows incoming TFTP traffic. Here is an example of how to do this:

```

New-NetFirewallRule -DisplayName 'TFTP-UDP-In' -Direction Inbound -Action Allow -Protocol UDP -LocalPort 69

```

This command will create a new Windows Firewall rule that allows inbound TFTP traffic on port 69.

In this article, we have explored the use of a TFTP client in Windows and provided an example of how to use it from the command line. We also looked at how to use PowerShell to create a Windows Firewall rule that allows incoming TFTP traffic. By following these steps, you can easily use TFTP to transfer files over IP networks.

Windows tftp client command line example