Clever Use of Wireless AP to connect multiple wired LAN (1)

With the acceleration of modern technology, each department of some large and medium-sized enterprises is equipped with computers, and some are even more than one. To facilitate data transmission and speed up work efficiency, enterprises have set up local networks. However, due to the long distance between office buildings, it is inevitable that wiring will be inconvenient when a LAN is set up. At the same time, the amount of work will be very large and the cost and technical content will be very high, in this case, we can use a wireless network to solve the problem.

Wireless Networks are flexible, mobile, low-cost, and easy to install. In addition to using AP for coverage to form a wireless LAN, we can also use it for remote bridging, connect two or more local networks in different regions to connect the entire enterprise. Different AP connection methods are used for different requirements. Next I will talk about several different methods to connect Wireless AP to multiple wired LAN.

I. Point-to-Point Bridging Mode

The distance between the two offices in the enterprise is not too long. At the same time, each office has set up its own lan. Now we need to connect the two offices. However, due to the obstacles in the middle of the two offices, cabling is not convenient, in this case, two wireless APS can be used to connect the two wired LAN networks to achieve wireless interconnection and resource sharing, as well as the expansion of the wired network. In this way, network cabling is saved, which is easy to operate and reduces costs.

As shown in Application 1, the two offices have established LAN: Lan1 and Lan2. The two APs are A and B respectively, and are connected in point-to-point bridging mode. Both APS are connected to the vswitches of the local area network.

Figure 1

Because such applications place APS outdoors and are seriously affected by the Environment, a dedicated outdoor Wireless AP is generally used and a dedicated directional antenna is installed, in this way, signals can be centrally transmitted to one direction, so that the two networks can be connected stably. At the same time, do not block the two wireless APs; otherwise, the network attenuation will be severe. As a result, the two wireless APS can be placed at the top of the two offices to reduce the chance of obstacle occurrence.

The last step is the setting of the two wireless APs. The two are set in the same way. They are both set in the "bridge mode" on the AP management interface and in the "Remote bridge MAC address (Remote bridge MAC). In addition, you must note that the IP addresses of the two APS must be in the same network segment and use the same two channels. If the two wireless APs have WEB encryption methods, they must be set to the same.