Multi-layered firewall architecture
US7509673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2003 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | May 26, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/164
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system are provided for implementing a firewall architecture in a network device. The firewall architecture includes a plurality of network layers, a first firewall engine, and one or more callout modules. The layers send packets and packet information to the first firewall engine, maintain and pass packet context to subsequent layers, and process the packets. The first firewall engine compares the packet information to one or more installed filters and returns an action to the layers indicating how to treat the packet. The callouts provide additional functionality such as intrusion detection, logging, and parental control features.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.