Firewalls that filter based upon protocol commands
US6832256B1 · kind B1 · utility
60Cited by
10References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1996 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Nov 12, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0281
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Data transfer is controlled between a first network and a second network of computers by a firewall-proxy combination. Active interpretation of protocol commands exchanged between the first network and the second network is performed to determine specific actions concerning completion of the protocol request. This active firewall-proxy combination may exist on either the first or second network of computers. This method of control provides centralized control and administration for all potentially reachable resources within a network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.