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MOBILE IP

MOBILE IP. REGIONAL COLLEGE FOR EDUCATION RESEARCH & TECHNOLOGY. Rahul Gupta B-Tech Computer engineering,7 th Sem. Networks. Public networks Public network are those network which are connected via router thereby from the internet. Private Networks

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MOBILE IP

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  1. MOBILE IP REGIONAL COLLEGE FOR EDUCATION RESEARCH & TECHNOLOGY Rahul Gupta B-Tech Computer engineering,7th Sem

  2. Networks • Public networks Public network are those network which are connected via router thereby from the internet. • Private Networks Private network are those network which are connected via NAT or Firewall thereby Internet.

  3. Mobile IP • Mobile IP originally developed Helsinki University of Technology (HUT) for Linux operating system. • Mobile IP is designed by IETF.

  4. WhyMobileIp • Operational Transparency • Performance Transparency • Backward compatibility • Infrastructure required • Small Additional Address • Security

  5. Mobile Ip standards • Sony MHP • Columbia MHP • IBM I MHP • IBM II MHP

  6. Mobile IP Operation • Sending and Receiving Packets • Discovering the care-of Address • Registering the care-of address • Tunneling to the care-of address • Deregistering the care-of address

  7. IP within IP Tunnling

  8. Roles of Mobile IP • The Foreign Agent entity in visited network that performs mobility functions on behalf of mobile. • The Home Agent entity that will perform mobility functions on behalf of mobile, when mobile is remote.

  9. Routing in Mobile IP Corresponding Node CN Packet from mobile Triangular Routing Global Internet Packet to mobile Mobile Node Home Network Visited Network Home Agent Foreign Agent Mobile IP forward tunnel Care of Address

  10. Routing in Mobile IP Corresponding Node CN Packet from mobile Reverse Routing Global Internet Packet to mobile Mobile Node Home Network Visited Network Home Agent Foreign Agent Mobile IP forward & reverse tunnel Care of Address

  11. Issues with Mobile IP • Inefficient routing • Ingress filtering • ARP Resolution

  12. Advantage • Uniqueness • Portability • Spotty Internet availability • Security

  13. Security ???? Bogus registration Send Packet To ME Evil Thing Home Agent Registration Request

  14. Security Replay Attack ???? Home Agent digest Captured Registration is retransmitted

  15. THANK YOU

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