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Chapter 21 Trivial File Transfer Protocol (TFTP)
CONTENTS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TFTP uses the services of UDP  on the well-known port 69.
MESSAGES 21.1
Figure  21-1 Message categories
Figure  21-2 RRQ Read request Mode: netascii  or  octet
Figure  21-3 WRQ Write request
Figure  21-4 DATA format
Figure  21-5 ACK format
Figure  21-6 ERROR format
CONNECTION 21.2
Figure  21-7 Connection establishment
DATA TRANSFER 21.3
Figure  21-8 Sorcerer’s apprentice bug
UDP PORTS 21.4
Figure  21-9 UDP port numbers used by TFTP
21.5 TFTP EXAMPLE
Figure  21-10 TFTP example
TFTP OPTIONS 21.6
SECURITY 21.7
Figure  21-11 TELNET with FTP for security
21.8 APPLICATIONS
Figure  21-12 Use of TFTP with BOOTP

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TFTP Protocol Explained - File Transfer Using UDP Port 69