Method and system of providing carrier grade NAT (CGN) to a subset of a subscriber base
US9860195B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2015 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Apr 7, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2101/695
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.