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| n |
Transparency
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– |
mobile
end-systems keep their IP address
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– |
continuation
of communication after interruption of link possible
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– |
point
of connection to the fixed network can be changed
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| n |
Compatibility
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– |
support
of the same layer 2 protocols as IP
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– |
no
changes to current end-systems and routers required
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– |
mobile
end-systems can communicate with fixed systems
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| n |
Security
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– |
authentication
of all registration messages
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| n |
Efficiency
and scalability
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– |
only
little additional messages to the mobile system required (connection
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typically
via a low bandwidth radio link)
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– |
world-wide
support of a large number of mobile systems in the whole
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Internet
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