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Method and system for crossing network address conversion, stream media server, set-top box

A technology of network address translation and streaming media server, which is applied in the field of communication, and can solve the problems that streaming media cannot be obtained, STB can not send media messages, and STB cannot send the correct public network address.

Inactive Publication Date: 2013-05-08
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The present invention is made in consideration of the above-mentioned problems, for this reason, the main purpose of the present invention is to provide a kind of network address translation traversal method and system, streaming media server, set-top box, to solve the problem of streaming media when NAT exists in the related art The problem that the correct public network address of the STB cannot be obtained and the media message cannot be sent to the STB

Method used

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  • Method and system for crossing network address conversion, stream media server, set-top box
  • Method and system for crossing network address conversion, stream media server, set-top box
  • Method and system for crossing network address conversion, stream media server, set-top box

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Embodiment 1

[0052] According to an embodiment of the present invention, a streaming media server is provided, Figure 4 is a block diagram of a streaming media server according to an embodiment of the present invention, such as Figure 4 As shown, it includes a first receiving module 2 , an analyzing module 4 , a judging module 6 , a sending module 8 , and a second receiving module 10 , and the above modules will be described in detail below.

[0053] The first receiving module 2 is used to receive the DESCRIBE query message protocol packet sent by the STB, wherein the DESCRIBE message packet carries the first custom parameter (the above-mentioned x-NAT) for indicating that the STB supports the NAT traversal packet, and the x-NAT contains the signaling IP address and signaling port of the STB.

[0054] The parsing module 4 is connected to the first receiving module 2, and is used for parsing the DESCRIBE protocol packet to obtain the signaling IP address and signaling port as well as the...

Embodiment 2

[0075] According to an embodiment of the present invention, a set-top box is provided, Figure 6 is a block diagram of a set-top box according to an embodiment of the present invention, such as Figure 6 As shown, it includes a first sending module 60, a receiving module 62, and a second sending module 64, and the above modules will be described in detail below.

[0076] The first sending module 60 is used to send the DESCRIBE protocol packet to the streaming media server, wherein the DESCRIBE protocol packet carries the first custom parameter (the above-mentioned x-NAT) for indicating that the STB supports NAT traversal packets, and in the x-NAT It carries the signaling IP address and signaling port of the STB.

[0077] The receiving module 62 is connected to the first sending module 60, and is used to receive the response message of the SETUP message or the PLAY message sent by the streaming media server, and the response message carries the second self-defined parameter (x...

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Abstract

The invention discloses a network address translating and traversing method and a system thereof, a stream media server and a set-top box (STB). The method comprises that: a stream media server receives a query information protocol package carrying a first defined parameter send by the STB, and the first defined parameter carries out a signaling IP address and a signaling port of the STB; the stream media server obtains the signaling IP address, the signaling port, a source address and a source port, and judges if the network address translating equipment exists according to the signaling IP address, the signaling port, the source address and the source port; If the network address translating equipment exists, the stream media server sends the response message carrying a second defined parameter, and the second defined parameter carries the predetermined time interval of sending the network address translating and traversing package; the stream media server receives the network address translating and traversing package sent by the STB. The technical proposal can realize that the stream media server sends the media message to the STB in the existence of NAT equipment.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a network address translation traversal method and system, a streaming media server, and a set-top box. Background technique [0002] At present, public network IP addresses have become a scarce resource. Therefore, enterprise-level applications generally adopt the method of setting up their own private network. Both use private addressing, and only through Network Address Translators (NAT for short) / firewalls can they communicate with the public network. [0003] NAT / firewall can complete the 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. Among them, the NAT / firewall only needs to convert IP / Transmission Control Protocol (Transmission Control Protocol, referred to as TCP) / User Packet Protocol for general applicati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/643H04N21/6437H04L29/12
Inventor 刘澍程佳佳霍晶
Owner ZTE CORP