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DNS-based multicast security control method and device

A technology of security control and multicast, which is applied in the field of communication, can solve problems such as the inability to realize dynamic control and the lack of control of multicast sources, and achieve the effects of simplifying the complex processing process of multicast source filtering, reducing network attacks, and effective security control

Active Publication Date: 2020-04-24
ZTE CORP
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a DNS-based multicast security control method and device, aiming to solve the problem that the existing multicast implementation technology has no control over the multicast source or cannot realize dynamic control

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  • DNS-based multicast security control method and device
  • DNS-based multicast security control method and device

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Embodiment Construction

[0050] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] The solution of the embodiment of the present invention is mainly: by sending DNS (Domain Nameservice, domain name service) request message to domain name server, obtain the multicast source DNS address list of IPTV server; After the document, address verification is performed on the multicast data message according to the multicast source DNS address list and the locally maintained multicast address list; Requirements, the message is forwarded, and the message is discarded if it does not meet the requirements. Therefore, the method of filtering the message through the multicast source DNS list realizes effective control of the multicast service flow and simplifies the complex processing of multicast source filtering. Process, engineering implementation and deployment are simple.

[0052] like figure 1 As sho...

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Abstract

The present invention relates to a DNS-based multicast security control method and device. The method includes: sending a DNS request message to a domain name server to obtain a list of multicast source DNS addresses of an IPTV server; After the data message, address verification is performed on the multicast data message according to the multicast source DNS address list and the locally maintained multicast address list; forwarding control is performed on the multicast data message according to the verification result. The invention can effectively authenticate the multicast source, realize effective security control of the multicast service flow, not only ensure the stability of the multicast service, reduce network attacks, but also simplify the complicated processing flow of multicast source filtering, and the project realizes and simple to deploy.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a DNS-based multicast security control method and device. Background technique [0002] Multicast is the core of IPTV services, so security is a very important issue. Judging from the current implementation of broadband access equipment, there is no good solution. Among them, a key issue is the authentication of the multicast source. Prior art protocols, such as the source filtering function of the IGMPV3 protocol, are currently not implemented or supported in user terminal equipment (such as STB) or central office equipment due to the complexity of implementation, resulting in any multicast server being able to send multicast streams to terminal equipment, which poses a security risk. Therefore, the prior art cannot control or realize dynamic control of the multicast source. Contents of the invention [0003] The main purpose of the present invention is to provide a...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/6405H04N21/643
CPCH04N21/6405H04L61/4511H04L9/3271H04L63/0236H04L63/04H04L63/101H04L63/104
Inventor 高春生武云飞魏煜
Owner ZTE CORP
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