Method of the NAT exceeding which is based on combining UPnP and STUN

摘要

Topic This invention regards the method of the NAT exceeding which is based on combining UPnP technology and STUN technology.Solutions Particular method when the NAT exceeding which utilizes UPnP by combining UPnP and STUN effectively, fails, is something which again exceeds NAT with STUN method, it exceeds by dipping up each feature of the method particular two types exceeding improves success ratio. In addition, in order to avoid the blind characteristic in defect and the simple port gradual increase presumption method due to the proxy transfer of the third party concerning the exceeding of symmetrical type NAT, the NAT additional port submits the design which presumes the port with the method of presuming the distribution of the port mapping which is based on the sample value which mapping is done. In addition, because load of the relay server is dispersed concerning when is on the reverse side of both NAT of communication in the P2P streaming media system, outside there is a room in bandwidth of part submits the method of designating the normal communication node which is in network as the auxiliary relay node it is possible to cancel the bottleneck of the system effectively. Selective figure Figure 2