Methods and apparatus for securing proxy Mobile IP
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United States of America Patent
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Mar 17, 2009
Grant Date -
Oct 28, 2004
app pub date -
Apr 28, 2003
filing date -
Apr 28, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
An invention is disclosed that enables proxy Mobile IP registration to be performed in a secure manner. Various security mechanisms may be used independently, or in combination with one another, to authenticate the identity of a node during the registration process. First, an Access Point receiving a packet from a node verifies that the source MAC address identified in the packet is in the Access Point's client association table. In addition, as a second mechanism, the Access Point (or Foreign Agent) ensures that a one-to-one mapping exists for the source MAC address and source IP address identified in the packet. As a third mechanism, a binding is not modified in the mobility binding table maintained by the Home Agent unless there is a one-to-one mapping in the mobility binding table between the source MAC address and the source IP address.
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