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Lecture TCP-IP protocol suite - Chapter 21: Trivial File Transfer Protocol (TFTP)

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Transferring files from one computer to another is one of the most common tasks expected from a networking or internetworking environment. As a matter of fact, the greatest volume of data exchange in the Internet today is due to file transfer. In this chapter, we discuss two protocols involved in transferring files: File Transfer Protocol (FTP) and Trivial File Transfer Protocol (TFTP).

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Nội dung Text: Lecture TCP-IP protocol suite - Chapter 21: Trivial File Transfer Protocol (TFTP)

  1. Chapter 21 Trivial File Transfer Protocol (TFTP) McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  2. CONTENTS •  MESSAGES •  CONNECTION •  DATA TRANSFER •  UDP PORTS •  TFTP EXAMPLE •  TFTP OPTIONS •  SECURITY •  APPLICATIONS McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  3. TFTP uses the services of UDP on the well-known port 69. McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  4. 21.1 MESSAGES McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  5. Figure  21­1 Message categories McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  6. Figure  21­2 RRQ Read request Mode: netascii or octet McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  7. Figure  21­3 WRQ Write request McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  8. Figure  21­4 DATA format McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  9. Figure  21­5 ACK format McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  10. Figure  21­6 ERROR format McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  11. 21.2 CONNECTION McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  12. Figure  21­7 Connection establishment McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  13. 21.3 DATA TRANSFER McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  14. Figure  21­8 Sorcerer’s apprentice bug McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  15. 21.4 UDP PORTS McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  16. Figure  21­9 UDP port numbers used by TFTP McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  17. 21.5 TFTP EXAMPLE McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  18. Figure  21­10 TFTP example McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  19. 21.6 TFTP OPTIONS McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  20. 21.7 SECURITY McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
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