Method for realizing virtual local area network (VLAN) communication by adopting wireless network and device and system thereof

Abstract

The invention discloses a method for realizing virtual local area network (VLAN) communication by adopting wireless network and a device and a system thereof, wherein the method comprises: first network equipment generates a first address for a first VLAN connected to the first network equipment and sends the address to second network equipment; the second network equipment establishes a corresponding relationship between the first address and the first VLAN connected to the second network equipment. When the first VLAN connected to the first network equipment sends a message to the first VLAN connected to the second network equipment, the first network equipment receives the message sent from the first VLAN connected to the first network equipment, writes the first address corresponding to the first VLAN of the sent message into the received message, and sends the address to the second network equipment. The second network equipment forwards the message to the first VLAN connected to the second network equipment according to the first address carried by the received message. The invention realizes the data communication between the same VLANs on both sides of the first network equipment and the second network equipment which are connected by adopting the wireless network.

Description

technical field [0001] The invention relates to the field of wireless data communication, in particular to a method, device and system for realizing virtual local area network communication by using a wireless network. Background technique [0002] The function of virtual local area network (Virtual Local Area Net, VLAN) is to logically divide the physically interconnected network into multiple independent networks. These networks cannot communicate with each other, as if they are not connected to each other. . [0003] The implementation principle of VLAN is very simple. Through the control of the switch, the data packet sent by a certain VLAN member is only sent by the switch to other members of the same VLAN, and will not be sent to computers other than the VLAN member. [0004] The purpose of using VLAN is not only to isolate broadcasting, but also for security and management applications. For example, to isolate important departments from other departments through VLAN...

AI Technical Summary

Problems solved by technology

[0010] The embodiment of the present invention provides a method, device and system for realizing virtual local area network communication by using a wireless network, so as to solve the problem that virtual local area network communication cannot be realized through a wireless network in the prior art

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