Method and system for filtering traffic from unauthorized sources in a multicast network
US7693146B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2006 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Dec 4, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/54
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for filtering traffic in a multicast network are disclosed. Multicast packets are received at a network device which has a multicast routing table and a list containing nodes or interfaces authorized for transmitting multicast traffic into the network at the network device. The method includes determining if the network device is directly connected to a source of the multicast packet and only if the network device is directly connected to the source of the multicast packet, checking the list to determine if the source is an authorized source and dropping or blocking multicast packets from the source if the source is not an authorized source. The method further includes processing multicast packets from the source according to the multicast routing table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.