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Lecture TCP-IP protocol suite - Chapter 7: ARP and RARP

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Upon completion of this lesson, the successful participant will be able to: Understand the need for ARP, understand the cases in which ARP is used, understand the components and interactions in an ARP package, understand the need for RARP.

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Nội dung Text: Lecture TCP-IP protocol suite - Chapter 7: ARP and RARP

  1. Chapter 7 ARP  and RARP McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  2. CONTENTS • ARP • ARP PACKAGE • RARP McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  3. Figure  7­1 ARP and RARP McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  4. Figure  7­2 Position of ARP and RARP in TCP/IP protocol suite McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  5. 7.1 ARP McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  6. Figure  7­3 ARP operation McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  7. Figure  7­4 ARP packet McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  8. Figure  7­5 Encapsulation of ARP packet McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  9. Figure  7­6:a Four cases using ARP McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  10. Figure  7­6:b Four cases using ARP McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  11. Figure  7­6:c Four cases using ARP McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  12. Figure  7­6:d Four cases using ARP McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  13. An ARP request is broadcast; an ARP reply is unicast. McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  14. Example 1 A host with IP address 130.23.43.20 and physical address 0xB23455102210 has a packet to send to another host with IP address 130.23.43.25 and physical address 0xA46EF45983AB. The two hosts are on the same Ethernet network. Show the ARP request and reply packets encapsulated in Ethernet frames. McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  15. Solution Figure 7.7 shows the ARP request and reply packets. Note that the ARP data field in this case is 28 bytes, and that the individual addresses do not fit in the 4-byte boundary. McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  16. Figure 7­7: request Example 1 McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  17. Figure 7­7: reply Example 1 (Continued) McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  18. Figure 7­8 Proxy ARP McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  19. 7.2 ARP PACKAGE McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
  20. Figure  7­9 ARP components McGraw­Hill ©The McGraw­Hill Companies, Inc., 2000
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