Method for stateful firewall inspection of ICE messages
US7472411B2 · kind B2 · utility
48Cited by
1References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2005 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Mar 30, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/1104
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An endpoint uses Interactive Connectivity Establishment (ICE) to enable multimedia communications to traverse Network Address Translators (NATs). A security policy enables security devices and asymmetric security devices to forward ICE messages. A management device stores information about an initial message. Later, a security device receives an ICE message and sends and authorization request to the management device. The management device compares information in the authorization request to information in memory. According to the comparison, the management device authorizes the security device to forward the ICE message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.