Network application device, network connection method, and network connection system

Abstract

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.

Description

technical field [0001] The present invention relates to network connections, and in particular to including a communication protocol layer providing network address translation (NAT) traversal on network applications. Background technique [0002] Although Network Address Translation has solved the problem of insufficient and uneven distribution of Internet Protocol version 4 (IPv4) address space to a certain extent, it actually sacrifices the convenience and freedom of users, and makes those who try to traverse Web applications are too complex. Specifically, network address translation severely limits the possibility of general users setting up their own servers. Even if the application software selected by the user has the function of traversing network address translation, such a function is often buried deep in the application and cannot be recycled and shared. It does not meet the abstraction and object-oriented principles of software development and use cycles. Cont...

AI Technical Summary

Problems solved by technology

[0002] Although Network Address Translation has solved the problem of insufficient and uneven distribution of Internet Protocol version 4 (IPv4) address space to a certain extent, it actually sacrifices the convenience and freedom of users, and makes those who try to traverse Web applications are too complex

Specifically, network address translation severely limits the possibility of ordinary users setting up their own servers

Even if the application software selected by the user has the function of traversing network address translation, such a function is often buried deep in the application and cannot be recycled and shared. It does not meet the abstraction and object-oriented principles of software development and use cycles.

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