NETWORK APPLICATION DEVICE, NETWORK CONNECTION METHOD, AND NETWORK CONNECTION SYSTEM

摘要

Disclosed herein is a network application device (NAD), comprising a connection assistant module and an application module. The connection assistant module connects to a traversal server, causing the traversal server to receive a physical network address of the NAD. The application module connects to the connection assistant module at a local port number. Also disclosed herein is a network connection system, comprising said traversal server and a first and a second said NAD. The traversal server receives a unique identifier associated with the second NAD when the connection assistant module of the first NAD connects to the traversal server, and provides the same connection assistant module with a physical network address of the second NAD. The application module of the first NAD thereby communicates with the second NAD through the connection assistant module.