15-02-2011, 04:47 PM
presented by:
Amit Saxena
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Mobile Internet Protocols
Introduction
Wireless Technology becoming hotter.
Transition towards Mobility over past 20 years.
CISCO IOS has integrated new Technology on Mobile IP which provides USER freedom to roam.
Network Mobility is provided by Mobile IP
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
1. Node must change its IP address while roaming.
2. Host specific routes must be propagated.
Terminology
Mobile node
Home agent
Foreign agent
Relation Between Different Components
Protocol overview
Agent Discovery
Registration
Tunneling
Two Ways To Acquire Care Of Address
Foreign Agent Care of Address.
Collocated Care of Address.
Message Format and Protocol Extensibility
The extension used in Mobile IP is as shown below which is not used in simple IP.
How Mobile IP works
AGENT DISCOVERY
1. Advertisement
2. Solicitation
REGISTRATION
TUNNELING
1. General Tunneling
2. Packet Forwarding
3. Reverse Tunneling
General Tunneling
Packet Forwarding
This path is topographically incorrect .
Ingress Filtering occurs