Stateful firewall protection for control plane traffic within a network device
US7546635B1 · kind B1 · utility
29Cited by
33References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2004 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Jan 17, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/1441
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network device receives control plane packets and data plane packets from a network. The network device includes a forwarding component that forwards the data plane packets in accordance with routing information maintained by a routing component. The forwarding component directs the control plane packets to a firewall component that processes the control plane packets to apply firewall services and detect network attacks. After processing, the firewall component loops the control plane packets back to the forwarding components for forwarding to the routing component. The firewall component may be a security service card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.