Network address translation in a network having multiple overlapping address domains
US6888837B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1999 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Mar 23, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L61/2535
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A technique for translating addresses in a communication network having multiple overlapping address domains involves mapping an overlapping local address from a first address domain to a unique global address that is specific to a second address domain. The unique global address is used by any device in the second address domain to reference the device in the first address domain having the overlapping local address. Furthermore, a packet sent from a source host in the first address domain to a destination host in the second address domain requires at least a source address translation in order to translate the source host local address used within the first address domain into a source host global address that is used within the second address domain, and may also require a destination address translation in order to translate the destination host global address used within the first address domain into a destination host local address used within the second address domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.