专利详情

专利名称	Method based on the combination of the UPnP and STUN for NAT traversal
申请号	US20090937337	专利类型	US
公开（公告）号	US8560607(B2)	公开（授权）日	2013.10.15
申请（专利权）人	中国科学院声学研究所	发明（设计）人	WANG JINLIN;REN HAO;LU YIFENG;SU SHAOWEI;FENG ZHENTAN
主分类号	G06F15/16	IPC主分类号	G06F15/16;G06F15/177
专利有效期	Method based on the combination of the UPnP and STUN for NAT traversal 至Method based on the combination of the UPnP and STUN for NAT traversal	法律状态
说明书摘要	The present invention relates to a method based on the combination of UPnP and STUN for NAT traversal. The method of the present invention effectively takes the advantages of UPnP and STUN. In particularly, when UpnP fails to traverse NAT, STUN is applied to perform the NAT traversal for the second time, so that the efficiency of the successful traversal is effectively improved. For the symmetric NAT traversal, a Port-Adding Sample Estimation method based on NAT adding port mapping is provided for port estimation, to avoid the defects resulted from the third-party agent and the blindness of the speculation approach. And, where both of the communication peers in the P2P streaming media system are behind NAT, the method that the part of the ordinary outer peers with the sufficient bandwidth acts as the Auxiliary-Relay peers is provided to release the pressure of the relay server so that the bottle-neck of the communication is broken through.