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Method and device for preventing manual designation of ip address in local area network

A technology of IP address and local area network, applied in the field of mobile communication, can solve problems such as IP conflicts in the local area network, and achieve the effect of reducing the probability of conflicts

Active Publication Date: 2017-05-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and device for preventing manual assignment of IP addresses in a local area network to solve the problem in the prior art that manual assignment of IP addresses easily causes IP conflicts in the local area network

Method used

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  • Method and device for preventing manual designation of ip address in local area network
  • Method and device for preventing manual designation of ip address in local area network
  • Method and device for preventing manual designation of ip address in local area network

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Embodiment Construction

[0020] In order to solve the problem in the prior art that manually assigning IP addresses easily causes IP conflicts in the LAN, the present invention provides a method and device for preventing manual IP address assignment in the LAN. The user requests data services such as surfing the Internet. The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] method embodiment

[0022] According to an embodiment of the present invention, a method for preventing manual IP address assignment in a local area network is provided, figure 1 It is a flowchart of a method for preventing manual IP address assignment in a local area network according to an embodiment of the present invention, such as figure 1 As shown, the method for preventing manually specifyi...

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PUM

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Abstract

The invention discloses a method and a device for preventing manual designation of IP addresses in a local area network. The method includes: receiving a message sent by a terminal, and determining whether the message is sent by a host manually specifying an IP address according to a preset message filtering rule table and a mapping table between a MAC address and an IP address of the media access control; If the packet is sent by a host whose IP address is not manually specified, the packet is allowed to pass, and when the packet is judged to be sent by a host with a manually specified IP address, the packet is prohibited from passing. By means of the technical scheme of the invention, the data service of the host whose IP address is manually specified can be prohibited, and the probability of IP address conflict in the local area network can be reduced.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method and device for preventing manual designation of IP addresses in a local area network. Background technique [0002] At present, LAN networking is more and more widely used. During the networking process of a local area network, a Dynamic Host Configuration Protocol (DHCP for short) server is generally used to dynamically allocate and manage an Internet Protocol (Internet Protocol, IP for short) address. In the prior art, to solve the problem of IP conflict, the binding of a fixed static IP and a Media Access Control (MAC) address may be used, or the detection of an Address Resolution Protocol (Address Resolution Protocol, referred to as MAC) may be used. ARP) packets, etc. [0003] However, when a user manually specifies an IP address, the DHCP server cannot manage it. Manually assigning an IP address can easily cause IP conflicts in the LAN, which will cause troub...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
CPCH04L61/103H04L61/5046H04L61/5007
Inventor 刘威郑玉婷马小亮
Owner ZTE CORP