Layer-2 IP networking method and apparatus for mobile hosts
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United States of America Patent
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Jun 6, 2006
Grant Date -
N/A
app pub date -
Aug 30, 2001
filing date -
Feb 20, 2001
priority date (Note) -
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Abstract
A method and apparatus to enable IP networking for mobile hosts without requiring changes to be made to the TCP/IP stack in the operating system installed on the mobile hosts. The apparatus is an 'intelligent device' that can be installed on or connected to a mobile host, and may comprise a software-only logical module, physical hardware, or a combination of both. To a mobile host, the intelligent device emulates a network interface such as an Ethernet card or a telephone modem. The intelligent device appears to an access network just like any regular IP host connected to the access network through a physical network interface device. The intelligent device handles all mobile networking functions for the mobile host, and may control multiple different physical network interface devices to enable a connection to the 'best' access network available to the mobile user at his location.
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