Method and apparatus for controlling multicast IP packets in access network
US8923181B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2008 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Jan 28, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/189
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention proposes a method for controlling the uplink transmission of the multicast IP packet sourced from the UE in field of IP packet transmission in access network. According to the technical solution of the present invention, the access devices receives IP packet from the UE, checks the IP packet and determines whether the IP packet is multicast IP packet that is allowed to be accessed. If the access device determines that the IP packet is multicast IP packet that is allowed to be accessed, then it sends the multicast IP packet in multicast form. Via the present invention, the access device can allow the uplink valid multicast IP packet to pass, preferably, determines and intercepts the malicious attacks via multicast IP packet, so as to ensure the DSL access device's support for mobile IPv4, so as to keep the uninterrupted connection of the service to the user when the user moves between different subnets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.