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MOBILE INTERNET PROTOCOL PowerPoint Presentation
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MOBILE INTERNET PROTOCOL

MOBILE INTERNET PROTOCOL

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MOBILE INTERNET PROTOCOL

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Presentation Transcript

  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