NAT traversing method based on combination of UPnP and STUN technologies
A combination of technology and technology, applied in the field of NAT traversal based on the combination of UPnP and STUN technology, to improve the success rate of traversal, eliminate system communication bottlenecks, and relieve pressure
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[0053] The present invention proposes a combined NAT traversal method, which effectively combines two commonly used traversal methods—UPnP and STUN. The respective advantages of the traversal methods can effectively improve the success rate of traversal.
[0054] Architecture of P2P streaming media system with NAT, such as figure 1 shown. In the figure, the data source server and the data transfer server are responsible for the streaming and forwarding of media data, and the index server, as the central index server of the P2P network in the region, saves the information of all nodes in the P2P network in the region. User communication nodes A and B are located in an internal LAN behind NAT device A, user communication nodes C and D are located in another internal LAN behind NAT device B, and user communication node E is an external network node.
[0055] Now assume that communication node E wants to request data from communication node A. Due to the existence of NAT, the co...
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