3-1
3
TFTP Configuration
When configuring TFTP, go to these sections for information you are interested in:
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TFTP Overview
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Configuring the TFTP Client
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Displaying and Maintaining the TFTP Client
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TFTP Client Configuration Example
TFTP Overview
Introduction to TFTP
The Trivial File Transfer Protocol (TFTP) provides functions similar to those provided by FTP, but it is
less complex than FTP in interactive access interface and authentication. Therefore, it is more suitable
in environments where complex interaction is not needed between client and server.
TFTP uses the UDP port 69 for data transmission. For TFTP basic operation, refer to RFC 1986.
In TFTP, file transfer is initiated by the client.
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In a normal file downloading process, the client sends a read request to the TFTP server, receives
data from the server, and then sends the acknowledgement to the server.
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In a normal file uploading process, the client sends a write request to the TFTP server, sends data
to the server, and receives the acknowledgement from the server.
TFTP transfers files in two modes:
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Binary mode for program file transmission, like files with the suffixes
.app
,
.bin
, or
.btm
.
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ASCII mode for text file transmission, like files with the suffixes
.txt
,
.bat
, or
.cfg
.
Operation of TFTP
Only the TFTP client service is available with your device at present.
Figure 3-1
TFTP configuration diagram
Before using TFTP, the administrator needs to configure IP addresses for the TFTP client and server,
and make sure that there is a reachable route between the TFTP client and server.
