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standardized
by RFC 2002: “IP Mobility Support”
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service
advertisements: let mobiles know of existence
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of
mobility agent (home agent or foreign agent)
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registration:
mobile computer “camps on” an IP subnet
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and
informs its home agent about its current location
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tunneling:
process of forwarding IP packets from home
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agent
to foreign agent, for delivery to the mobile
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motion
detection: mobile detects that it moved on to a
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new
cell/IP subnet
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route
optimization: avoid problem of triangle routing,
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not
part of standard but under discussion
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