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Cross-virtual local area network multicast service processing method and device

A technology of virtual local area network and multicast service, applied in the field of multicast service processing, can solve problems such as hidden dangers of network security, and achieve the effect of improving security

Inactive Publication Date: 2015-06-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this processing method is that allowing multicast requests from any VLAN on the user side has certain hidden dangers to network security.

Method used

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  • Cross-virtual local area network multicast service processing method and device
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  • Cross-virtual local area network multicast service processing method and device

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Experimental program
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Embodiment Construction

[0017] The inventor has noticed in the invention process: most of the access network equipment supports cross-VLAN multicast technology at present, but when processing the multicast protocol message of the user side, the VID (virtual local area network identification) field of the message is Instead of verification, the multicast group field in the message is verified, and the multicast VLAN that needs to be joined is reversely parsed, so as to achieve the purpose of requesting cross-VLAN multicast on the user side. This processing method allows multicast requests from any VLAN on the user side. Obviously, this processing method has certain hidden dangers for network security.

[0018] The technical solution provided by the embodiment of the present invention is based on cross-VLAN multicast, by purposefully verifying the VID field of the multicast protocol message on the user side, allowing legal user VLANs to request, and for illegal VLAN directly discarded, so as to realize...

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Abstract

The present invention discloses a method and an apparatus for processing a cross-VLAN (VLAN: Virtual Local Area Network) multicast service, including: maintaining the mapping relation between a source VLAN providing the multicast service and a destination VLAN receiving the multicast service; acquiring the VLAN identifier in a multicast request message and reversely analyzing out, according to the multicast group address in the multicast request message, the VLAN desiring to join in the multicast; providing the multicast service if the VLAN identifier matches with the source VLAN of the mapping relation successfully and the VLAN desiring to join in the multicast matches with the destination VLAN of the mapping relation successfully; discarding the message if the VLAN identifier does not match with the source VLAN of the mapping relation or the VLAN desiring to join in the multicast does not match with the destination VLAN of the mapping relation. Applying the technical solutions provided in the invention can improve the network security.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a cross-virtual local area network multicast service processing method and equipment. Background technique [0002] With the rapid development of broadband access technology and IPTV (Interactive Personality TV, personalized interactive TV) services, IPTV has higher and higher requirements for access networks. On the one hand, more flexible support groups are required for access network equipment. On the other hand, network security issues must be taken into consideration. The standard IGMP Snooping (IGMP snooping, IGMP: Internet Group Management Protocol, Internet Group Management Protocol) function only provides the multicast function in the same VLAN (Virtual Local Area Network, Virtual Local Area Network), and most operators use ports to divide 802.1q VLAN Therefore, when multicasting is implemented, users are usually in different VLANs. If standard IGMP Sn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/18H04L29/12
CPCH04L12/18
Inventor 吴志辉
Owner ZTE CORP