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Mobile
IP basically transforms the mobility problem to
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a
routing problem, using two IP addresses
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n |
static
IP address: connection establishment, packet delivery
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n |
care-of
IP address: changes with host mobility
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home
agent is the router for the home network
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foreign
agent, located within the range of a mobile
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computer,
delivers packets to it after receiving them
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from
the home agent
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no
special routing is needed to send packets from a
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mobile
computer to a non-mobile computer
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routing
from stationary computer to mobile computer is
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not
necessarily optimal (triangular routing), proposals
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exist
for route optimization
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