METHOD FOR ACQUIRING TRAVERSAL RESOURCE, PEER TO PEER NODE AND PEER TO PEER SYSTEM

A method for acquiring a traversal resource includes the following steps. A peer to peer (P2P) entity generates a message carrying a request for collecting a network address translation (NAT) traversal resource, and sends the message carrying the request for collecting the NAT traversal resource to a destination P2P node. A middle P2P node and the destination P2P node receiving the message carrying the request for collecting the NAT traversal resource collect the NAT traversal resource. The middle P2P node and the destination P2P node send the collected NAT traversal resource to a first P2P node. A P2P node and a P2P system are also provided.