Scalable port address translations
US8725898B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2011 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Aug 31, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L61/5076
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for performing address translation for packets entering or leaving a network. In some embodiments, a private network that may be fully or partially virtualized can use a stateless tunneling mechanism to communicate with external networks, such as the Internet, without using an external IP address for every host on the private network. For example, a packet forwarding device using a stateless Port Address Translation (PAT) implementation can route the packets subject to PAT by using forwarding rules rather than by storing connection-tracking state. Connection state information can be maintained at the hosts rather than at the packet forwarding device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.