Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2003-07-14
2008-11-18
Nguyen, Chau (Department: 2619)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S401000
Reexamination Certificate
active
07453852
ABSTRACT:
A mobile node includes a processor, a network interface, and a storage device having computer program code for execution by the processor. The computer program code includes a network layer for transmitting and receiving packets and an intermediate driver that transmits packets to the network layer and receives packets from the network layer using a virtual internet protocol (IP) address to identify the mobile node. The intermediate driver transmits packets to the network interface and receives packets from the network interface using a routable actual IP address to identify the mobile node. The intermediate driver permits the actual IP address to change when the mobile node moves from a first subnet to a second subnet without a corresponding change in the virtual IP address. A corresponding NAT associates the virtual IP address with a second actual IP address when the NAT is notified that the mobile node is in the second subnet.
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Buddhikot Milind M.
Hari Adiseshu
Miller Scott C.
Singh Kundan Narendra
Choi Eunsook
Lucent Technologies - Inc.
Nguyen Chau
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