Flow media system NAT traversing device supporting authentication and implementing method thereof

Abstract

The present invention provides a streaming media system NAT traversal device supporting the certification authoring, which comprises an STB terminal and a streaming media server, the streaming media server comprises a signaling flow forwarding module used to forward the signaling message received from the terminal to a signaling processing module, and to forward the signaling message being processed by the signaling processing module to the STB terminal; the signaling processing module used to indicate the STB terminal to send an NAT traversal message; and a media streaming forwarding module used to receive the NAT traversal message of the STB terminal, and to send the media streaming to the target IP and PORT. The device and the method provided by the present invention, the STB carries the authentication code of the terminal in an NAT traversal packet to provide the authentication for the server terminal, and after the server operates the authentication successfully, the remote IP packet and PORT carried by the NAT traversal packet substitute the IP and PORT on the STB of the signaling negotiation, thereby, enabling the streaming media server to send the media packet to the STB terminal behinds the NAT device.

Description

technical field [0001] The invention relates to multimedia communication, in particular to a streaming media system NAT traversal device supporting authentication and authentication and its realization method. Background technique [0002] Since public network IP addresses have become a scarce resource, existing enterprise-level applications mostly use their own private network, and all network devices within the enterprise are hidden behind the private network. The internal network of the enterprise uses private addressing and controls communication with the public network through a NAT / firewall. Network address translation (NAT) / firewall can complete the mutual conversion between private addressing and public network addressing, and set corresponding packet filtering rules so that IP packets that do not meet the conditions cannot pass through NAT / firewall. For general application protocols such as HTTP with fixed ports, NAT / firewall only needs to convert IP / TCP / UDP header...

AI Technical Summary

Problems solved by technology

[0014] The present invention aims to solve the problem in the prior art that when the STB terminal is behind the NAT device, the media sent through the media port negotiated by signaling cannot reach the STB terminal, and provides a streaming media system NAT traversal device supporting authentication and authentication. Its implementation method enables the streaming media server to send the media packet to the STB terminal behind the NAT device

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