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| n |
Agent
Advertisement
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HA
and FA periodically send advertisement messages into their physical
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subnets
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MN
listens to these messages and detects, if it is in the home or a foreign
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network
(standard case for home network)
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MN
reads a COA from the FA advertisement messages
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| n |
Registration
(always limited lifetime!)
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MN
signals COA to the HA via the FA, HA acknowledges via FA to MN
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these
actions have to be secured by authentication
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| n |
Advertisement
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HA
advertises the IP address of the MN (as for fixed systems), i.e. standard
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routing
information
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routers
adjust their entries, these are stable for a longer time (HA responsible
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for a
MN over a longer period of time)
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packets
to the MN are sent to the HA,
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independent
of changes in COA/FA
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