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MOBILE INTERNET PROTOCOL

MOBILE INTERNET PROTOCOL. INTRODUCTION. WIRELESS TECHNOLOGY BECOMING HOTTER TRANSITION TOWARDS MOBILITY OVER PAST 20 YEARS CISCO IOS HAS INTEGRATED NEW TECHNOLOGY ON MOBILE IP WHICH PROVIDES USERS THE FREEDOM TO ROAM NETWORK MOBILITY IS PROVIDED BY MOBILE IP. MOBILE IP OVERVIEW.

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MOBILE INTERNET PROTOCOL

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  1. MOBILE INTERNET PROTOCOL

  2. INTRODUCTION • WIRELESS TECHNOLOGY BECOMING HOTTER • TRANSITION TOWARDS MOBILITY OVER PAST 20 YEARS • CISCO IOS HAS INTEGRATED NEW TECHNOLOGY ON MOBILE IP WHICH PROVIDES USERS THE FREEDOM TO ROAM • NETWORK MOBILITY IS PROVIDED BY MOBILE IP

  3. MOBILE IP OVERVIEW • ROUTING BASED ON STATIONARY IP ADDRESS IN IP NETWORKS • IT IS AN EXTENSION TO IP PROPOSED BY IETF THAT ENABLE USERS TO KEEP SAME IP ADDRESS WHILE ROAMING • WITHOUT MOBILE IP * NODE MUST CHANGE ITS IP ADDRESS WHILE ROAMING * HOST SPECIFIC ROUTES MUST BE PROPAGATED • BASELINE REQUIREMENTS OF MOBILE IP

  4. TERMINOLOGY

  5. PROTOCOL OVERVIEW • AGENT DISCOVERY • REGISTRATION • TUNNELING

  6. TWO WAYS TO ACQUIRE CARE OF ADDRESS • FOREIGN AGENT CARE OF ADDRESS • COLLOCATED CARE OF ADDRESS

  7. MESSAGE FORMAT AND PROTOCOL EXTENSIBILITY • THE EXTENSION USED IN MOBILE IP IS AS SHOWN BELOW WHICH IS NOT USED IN SIMPLE IP (TLV EXTENSION FORMAT)

  8. RELATIONSHIP BETWEEN DIFFERENT COMPONENTS

  9. HOW MOBILE IP WORKS • AGENT DISCOVERY ADVERTISEMENT SOLICITATION • REGISTRATION • TUNNELING  GENERAL TUNNELING  PACKET FORWARDING  REVERSE TUNNELING

  10. GENERAL TUNNELING

  11. PACKET FORWARDING

  12. REVERSE TUNNELING

  13. SECURITY • THE MESSAGES BETWEEN MOBILE NODE AND HOME AGENT REQUIRED TO CONTAIN MOBILE HOME AUTHENTICATION EXTENSION • MOBILE IP ALSO SUPPORTS HASH-BASED MESSAGE AUTHENTICATION CODE

  14. PROBLEMS WITH MOBILE IPV4 • ROUTING INEFFICIENCIES • SECURITY ISSUES • INGRESS FILTERING • COMPETITION FROM OTHER PROTOCOLS • TRIANGULAR ROUTING • CONGESTION

  15. CHANGES WITH MOBILE IPV6 • ROUTE OPTIMIZATION • SECURITY • SOURCE ROUTING

  16. ROUTE OPTIMIZATIN

  17. OTHER FEATURES PROVIDED BY MOBILE IPV6 • SMOOTH HAND OFFS • COEXISTENCE WITH INTERNET INGRESS FILTERING • AUTOMATIC HOME AGENT DISCOVERY

  18. IMPROVING THE PERFORMANCE OF HANDOFF IN MOBILE IP • TO AVOID PACKET LOSS DURING HAND OFF • ACTIVE ROUTERS • SMART BUFFERING

  19. CONCLUSION • SECURITY NEEDS ARE GETTING ACTIVE ATTENTION • MOBILE IP IS LIKELY TO MOVE FROM A PROPOSED STANDARD TO A DRAFT STANDARD IN THE NEAR FUTURE • BCOZ OF IT’S HIGH POTENTIAL THE FUTURE IS VERY BRIGHT

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