System for managing mobile node in mobile network
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United States of America Patent
Stats
-
Jan 27, 2009
Grant Date -
Jul 15, 2004
app pub date -
Mar 12, 2002
filing date -
Mar 13, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mobile node MN registers a care-of address CoA of a destination with a home agent HA. A node CN to communicate with the mobile node MN inquires a name server DNSY about the care-of address CoA of the mobile node. The name server DNSY obtains the care-of address CoA from the home agent HA and sends it to the node CN in reply. The node CN communicates with the mobile node MN by using the care-of address as the destination address. Alternatively, an access router provided in a subnet holds the care-of address CoA, and forwards packets to the mobile node. This reduces the control traffic and eliminates the triangle routing.
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