Chapter24 - Chapter24.fm Page 1 Friday, December 31, 2004...

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Unformatted text preview: Chapter24.fm Page 1 Friday, December 31, 2004 12:04 PM CHAPTER 24 Mobile IP 1. If a mobile host acts as a foreign agent, registration is still required. The mobile host/foreign agent still needs to identify itself to the home agent. 3. See Figure 24.1. Figure 24.1 Exercise 3 16 10800 ICMP Advertisement Message 8 0 1456 Reserved 5. An ICMP router solicitation message can also be used for agent solicitation by a mobile host that has moved to a new network. No extra fields are needed because the agent is looking for information. The agent’s own address is already included in the message. 7. See Figure 24.2. The protocol field is set to 1 to indicate ICMP. 9. See Figure 24.3. 11. See Figure 24.4. 1 Chapter24.fm Page 2 Friday, December 31, 2004 12:04 PM 2 CHAPTER 24 MOBILE IP Figure 24.2 Exercise 7 4 5 42 15 0 0 1 Source IP address Destination IP address ICMP Advertisement Message 8 0 44 0 Header checksum 16 10800 1456 Reserved Figure 24.3 Exercise 9 4 5 42 15 0 0 Protocol 200.4.7.14 130.45.6.7 Data length 0 Header checksum Figure 24.4 Exercise 11 4 5 207 15 0 0 Protocol 14.67.34.30 14.56.8.9 length 0 Header checksum 4 5 42 15 0 0 protocol 200.4.7.14 130.45.6.7 Data length 0 Header checksum 13. Triangle routing is the type of inefficiency. The packet travels to an extra network before it reaches the destination. Chapter24.fm Page 3 Friday, December 31, 2004 12:04 PM SECTION 3 Chapter24.fm Page 4 Friday, December 31, 2004 12:04 PM 4 CHAPTER 24 MOBILE IP ...
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This note was uploaded on 04/26/2010 for the course CSE CS501 taught by Professor Dmathur during the Winter '10 term at National Institute of Technology, Calicut.

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