Ip

1. INTRODUCTION TO MOBILE IP

2. Module IV
MOBILE - IP NETWORKS
MACRO-MOBILITY PROTOCOLS, MICRO-
MOBILITY PROTOCOL: TUNNEL BASED :
HIERARCHICAL MOBILE IP, INTRA DOMAIN
MOBILITY MANAGEMENT, ROUTING
BASED: CELLULAR IP, HANDOFF WIRELESS
ACCESS INTERNET INFRASTRUCTURE
(HAWAII).

3. MOBILE IP IS AN OPEN STANDARD, DEFINED BY
THE INTERNET ENGINEERING TASK FORCE
(IETF) RFC 2002, THAT ALLOWS USERS TO KEEP
THE SAME IP ADDRESS, STAY CONNECTED, AND
MAINTAIN ONGOING APPLICATIONS WHILE
ROAMING BETWEEN IP NETWORKS. MOBILE IP
IS SCALABLE FOR THE INTERNET BECAUSE IT IS
BASED ON IP—ANY MEDIA THAT CAN SUPPORT
IP CAN SUPPORT MOBILE IP

4. THE NUMBER OF WIRELESS DEVICES FOR VOICE OR DATA IS
PROJECTED TO SURPASS THE NUMBER OF FIXED DEVICES.
MOBILE DATA COMMUNICATION WILL LIKELY EMERGE AS THE
TECHNOLOGY SUPPORTING
MOST COMMUNICATION INCLUDING VOICE AND VIDEO.
MOBILE DATA COMMUNICATION WILL BE PERVASIVE IN
CELLULAR SYSTEMS SUCH AS 3G AND IN WIRELESS LAN SUCH
AS 802.11, AND WILL EXTEND INTO SATELLITE
COMMUNICATION.
THOUGH MOBILITY MAY BE ENABLED BY LINK-LAYER
TECHNOLOGIES, DATA CROSSING NETWORKS OR DIFFERENT
LINK LAYERS IS STILL A PROBLEM. THE SOLUTION TO THIS
PROBLEM IS A STANDARDS-BASED PROTOCOL, MOBILE IP.

5. Mobile IP Topology

6. MOBILITY AGENTS (HOME AGENTS AND FOREIGN
AGENTS) ADVERTISE THEIR PRESENCE USING AGENT
ADVERTISEMENT MESSAGES. A MOBILE NODE CAN
OPTIONALLY SOLICIT AN AGENT ADVERTISEMENT
MESSAGE FROM ANY LOCALLY ATTACHED MOBILITY
AGENTS THROUGH AN AGENT SOLICITATION MESSAGE.
A MOBILE NODE RECEIVES THESE AGENT
ADVERTISEMENTS AND DETERMINES WHETHER THEY
ARE ON ITS HOME NETWORK OR A FOREIGN NETWORK.
WHEN THE MOBILE NODE DETECTS THAT IT IS LOCATED
ON ITS HOME NETWORK, IT OPERATES WITHOUT
MOBILITY SERVICES. IF RETURNING TO ITS HOME
NETWORK FROM BEING REGISTERED ELSEWHERE, THE
MOBILE NODE DEREGISTERS WITH ITS HOME AGENT.

7. Mobile Node Residing on Home Network

8. Mobile Node Moving to a Foreign Network

9. Mobile IP With a Reverse Tunnel

10. Privately Addressed Mobile Nodes Residing on
the Same Foreign Network

11. Privately Addressed Mobile Nodes Residing on
Different Foreign Networks

12. Mobile IP Registration Process

13. COMPONENTS OF A MOBILE IP NETWORK
Mobile IP has the following three components
•Mobile Node
•Home Agent
•Foreign Agent

14. TUNNELLING

15. REVERSE TUNNELLING

16. THE TRANSMISSION CONTROL PROTOCOL (TCP) AND THE
INTERNET PROTOCOL (IP) ARE TWO OF THE NETWORK
STANDARDS THAT DEFINE THE INTERNET.
IP DEFINES HOW COMPUTERS CAN GET DATA TO EACH OTHER
OVER A ROUTED, INTERCONNECTED SET OF NETWORKS.
TCP DEFINES HOW APPLICATIONS CAN CREATE RELIABLE
CHANNELS OF COMMUNICATION ACROSS SUCH A NETWORK.
BASICALLY, IP DEFINES ADDRESSING AND ROUTING, WHILE TCP
DEFINES HOW TO HAVE A CONVERSATION ACROSS THE LINK
WITHOUT GARBLING OR LOSING DATA