Peer-to-peer communication traversing symmetric network address translators
US8224985B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 2005 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Jun 24, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/1104
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed are systems and methods for peer-to-peer communication over a network between a first node behind a first network address translator (NAT) and a second node behind a second NAT, despite the first NAT and the second NAT intervening between the first and second nodes. The first NAT is a Symmetric NAT. A port prediction is performed wherein the first node constructs a list of predicted transport addresses on the first NAT. A message containing the list of predicted transport addresses is sent from the first node to the second node. A connectivity check is performed with the second node using the predicted transport addresses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.