Communicating with an entity inside a private network using an existing connection to initiate communication
US8234358B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2002 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Aug 30, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L61/4557
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system is disclosed that allows an entity outside of a private network to initiate communication with another entity inside the private network. A first entity inside the private network maintains a persistent connection with a second entity outside the private network, with a port identification associated with the first entity's persistent connection. A third entity outside the private network obtains the port identification and initiates communication with the first entity by sending a message to the first entity using the port identification. The first and third entities then exchange communications outside the persistent connection. In an alternate implementation, the third entity uses the port identification to send the first entity a request for establishing a connection. The request is forwarded to the first entity through the persistent connection. The first entity responds by establishing a connection with the third entity outside the persistent connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.