System and method for filtering network traffic
US9882904B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2014 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Nov 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0263
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Protocol status information is used to perform traffic filtering by dropping messages that are not consistent with the protocol status information. In one embodiment, a method involves comparing message information and protocol status information. The message information is associated with a first message. The protocol status information is obtained in response to one or more second messages, which are conveyed according to a protocol used to assign network addresses to clients. The method also involves determining whether to discard the first message, based on an outcome of the comparison of the message information and the protocol status information. For example, it can be determined that the first message should be discarded, if the message information does not match the protocol status information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.