Apparatus and method for mapping overlapping internet protocol addresses in layer two tunneling protocols
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United States of America Patent
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Aug 24, 2010
Grant Date -
Jan 19, 2006
app pub date -
Jul 14, 2004
filing date -
Jul 14, 2004
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Abstract
A method and system are described for resolving problems created by implementing multiple networks using private IP addresses and layer two tunneling protocols is described. A network processing system is operable to map flows from private IP addresses and ports on layer two tunneling protocol networks to public IP addresses and ports using the private IP addresses and ports and identifiers for the layer two tunneling protocol network. The network processing system uses its own public IP addresses and ports to anchor the traffic from the private network and performs the required mapping to pass traffic between the public and private networks.
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