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A method and device for restoring the Internet access of local area network equipment

A local area network device and local area network technology, applied in the field of communication, can solve problems such as the lack of software self-repair methods

Active Publication Date: 2021-06-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, the industry has not solved this scenario, and there is a lack of software self-healing methods

Method used

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  • A method and device for restoring the Internet access of local area network equipment
  • A method and device for restoring the Internet access of local area network equipment
  • A method and device for restoring the Internet access of local area network equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] like figure 1 In the shown local area network system, the gateway device G1 (composed of router A) and the gateway device G2 (composed of router B) are connected through the local area network LAN interface, and the WAN interface of the gateway device G2 is connected to the Internet. A local area network device (a mobile phone is taken as an example below) is connected to the gateway device G1 or G2 in a wired or wireless manner. In this example, the mobile terminal is wirelessly connected to G1. The DHCP address of G1 is, for example, 192.168.43.1, so the DHCP address of the mobile terminal connected to G1 is, for example, 192.168.43.137. The DHCP address of the gateway device G2 is, for example, 192.168.1.1. In this example, because G1 is not directly connected to the Internet, the mobile phone cannot access the Internet.

[0029] The local area network device obtains the white list stored in the local area network device; the local area network device accesses the...

Embodiment 2

[0033] like image 3 As shown, this embodiment describes the process of forming and using the whitelist.

[0034] Step S101, start.

[0035] Step S102, the local area network device acquires the white list stored in the local area network device.

[0036]Step S103, it is judged whether the local area network device can find the offer information of the private network address provided by the router in the white list. When the judgment result is yes, go to step S104; otherwise, go to step S105.

[0037] Step S104, the local area network device accesses the Internet through the private network address provided by the router.

[0038] Step S105, the local area network device sends a DHCP discover packet.

[0039] Step S106, the local area network device receives the DHCP offer packets sent by all routers in the local area network.

[0040] Step S107, the local area network device caches all DHCP offer packets.

[0041] Step S108, the local area network device determines to ...

Embodiment 3

[0046] In the embodiment of the present invention, in combination with the first embodiment to the second embodiment, the changes of the UI setting interface of the mobile phone are as follows:

[0047] When the mobile phone and G1 are directly connected, the UI setting interface is as follows Figure 5 shown. Figure 5 , the gateway device address of G1 is 192.168.43.1. The corresponding mobile phone IP address is: 192.168.43.20.

[0048] Even if the mobile phone does not change the connection relationship, when it is still directly connected to the G1, the UI setting interface changes to the following Figure 4 shown. Figure 4 , the gateway device address of G1 is 192.168.1.1. The corresponding mobile phone IP address is: 192.168.1.137.

[0049] Through the embodiments of the present invention, even if the mobile phone does not change the connection relationship, it is still directly connected to the gateway device (eg G1) that cannot access the Internet in the prior a...

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Abstract

The invention discloses a method for a local area network device to resume accessing the Internet, comprising: the local area network device acquires a white list stored in the local area network device; The private network address provided by the router is used to access the Internet.

Description

technical field [0001] The invention relates to the field of communications, and in particular, to a method and a device for restoring the Internet access by a local area network device. Background technique [0002] In the prior art, there are two WiFi (Wireless Fidelity) routers A and B, and the corresponding gateway devices are G1 and G2 respectively. If the LAN (Local Area Network, local area network) ports of router A and router B are connected together by wire, a local area network with multiple DHCP (Dynamic Host Configuration Protocol, dynamic host configuration protocol) servers (servers) is formed. [0003] When a terminal accesses router A or router B, it will receive DHCP OFFER1 delivered by router A as gateway device G1 to the terminal, and DHCP OFFER2 delivered by router B as gateway device G2 for the terminal. The terminal will use the DHCP OFFER received first and discard the DHCP OFFER received later. [0004] Therefore, when the gateway device correspondi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
CPCH04W84/12H04W48/16H04W12/73H04W12/088H04L61/5038H04L61/5014H04L61/2514H04L63/0236H04L63/0272H04W12/086H04W12/69
Inventor 丁吉卢军鑫
Owner HUAWEI TECH CO LTD
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