Denial-of-service attack defense system, denial-of-service attack defense method, and computer product
US8479282B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 19, 2005 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Oct 26, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/1458
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A monitoring device is provided on a LAN to which a communication device that is a target of a denial-of-service attack is connected, and monitors a packet transmitted to the communication device via an ISP network. A restricting device is provided on the ISP network, and restricts a packet to the LAN. The monitoring device detects an attack by the packet on the communication device, and transmits protection request information indicating a request for protection against the attack to the restricting device. The restricting device restricts a packet transmitted to the communication device via the ISP network based on the protection request information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.