Method and system of providing carrier grade NAT (CGN) to a subset of a subscriber base
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United States of America Patent
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Jan 2, 2018
Issued Date -
N/A
app pub date -
Dec 31, 2015
filing date -
Dec 31, 2015
priority date (Note) -
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Abstract
A method and system are disclosed for providing a service to bypass carrier grade network address translation (NAT), or CGN. A first and second range of private IPv4 addresses are generated for mapping to public IPv4 addresses. Subscribers to the service are provided terminals with a status code which indicates its status with respect to the service. The terminal is assigned a private internet protocol (IP) subnet within the first range of private IPv4 addresses, if the status code is indicative of a bypass status and the terminal identifies a bypass device that requires access to inbound traffic from the public network. Each bypass device is assigned a private IPv4 address from the first range, and the bypass device's private IPv4 address is mapped to a public IPv4 address. Inbound traffic having a matching public IPv4 destination address is subsequently directed to the bypass device.
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