Network connection system of network electronic device and method allowing a terminal device to access an electronic device connected behind a router without a NAT loopback function

摘要

A method allowing a terminal device to access an electronic device connected behind a router without a NAT loopback function that includes following steps: sending a connection request having identification information to a network bridge device by a terminal device to connect to the network electronic device; sending a broadcast signal by the terminal device to search the network electronic device if the terminal device is unable to connect to the network electronic device according to the identification information; sending a response signal to the terminal device after the network electronic device receiving the broadcast signal; allowing the terminal device to connect to the network electronic device according to the response signal.

主权项

1. A method allowing a terminal device to access an electronic device connected behind a router without a NAT (Network Address Translation) loopback function, comprising the steps of:
sending a connection request to the router by the terminal device to receive identification information having a physical network address from the router and attempt to connect to the network electronic device accordingly; sending a broadcast signal by the terminal device to search the network electronic device if the terminal device is unable to connect to the network electronic device according to the identification information, wherein the broadcast signal includes a media access control address of the network electronic device, which is pre-stored in the terminal device; sending a response signal to the terminal device by the network electronic device having the media access control address identical to that included in the broadcast signal, wherein the response signal includes a virtual network address and a port number of the network electronic device; and allowing the terminal device to connect to the network electronic device according to the response signal; wherein the virtual network address of the network electronic device comprised in the response signal is translated from the physical network address of the router.