IP address acquisition method and related product
A technology for obtaining IP addresses and requests, applied in electrical components, wireless communication, connection management, etc., can solve problems such as DHCP server response timeout, packet loss, and terminal failure to obtain IP addresses
Pending Publication Date: 2020-06-16
OPPO CHONGQING INTELLIGENT TECH CO LTD
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Problems solved by technology
Due to the complex wireless environment and the possible abnormal behavior of the DHCP server, after the terminal sends a discover message, in actual use, the message will be lost or the response of the DHCP server will time out, resulting in the terminal being unable to obtain an IP address to connect to the LAN and realize communication.
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.
[0025] The terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but option...
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The embodiment of the invention discloses an IP address acquisition method and a related product, and the method comprises the steps: transmitting a network protocol IP address acquisition request, and obtaining a DHCP historical result if no response information from a dynamic host configuration protocol DHCP server is received in preset time; obtaining a first IP address and a gateway IP addressof the electronic equipment from the DHCP historical result, and detecting the first IP address and the gateway IP address; under the condition that the first IP address and the IP address of the gateway pass the detection, initiating a network access request by using the first IP address. According to the invention, in a scene that a DHCP server is abnormal or a wireless environment is complex to cause packet loss, etc. And when the electronic equipment cannot acquire the IP address allocated by the DHCP server, the first IP address and the gateway IP address of the electronic equipment in the DHCP historical result are acquired and detected to perform connection and access of the wireless network, so the normal communication function of the electronic equipment is realized.
Description
technical field [0001] This application relates to the field of mobile communications, in particular to a method for obtaining an IP address and related products. Background technique [0002] The Internet Protocol (IP) address is a network layer protocol in the TCP / IP system. When each device in the network transmits data, it realizes the function of data transmission by adding the unique IP address corresponding to the receiving end in the communication network. The process of obtaining an IP address generally includes four stages: the first stage is that the terminal sends a discover message to all DHCP servers in the LAN to request an available IP; the second stage is that the DHCP server sends an offer to the terminal after receiving the discover message message, the offer message contains an IP address assigned to the terminal; in the third stage, the terminal takes out the IP address in the first received offer message and sends a request message to the DHCP server t...
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IPC IPC(8): H04L29/12H04W76/10
CPCH04W76/10H04L61/5014
Inventor 洪灶根
Owner OPPO CHONGQING INTELLIGENT TECH CO LTD