Experience: the establishment of actual combat wireless network network surfing

The company's managers are equipped with laptops, every day to move to the office, with a network cable is very inconvenient, notebook computers all have wireless network card, the manager ordered me to do a wireless network, complete today. Company LAN has been to the Internet, the company Gateway 192.168.0.1, other IP for the 192.168.0.2~255, the company's local area network is as follows.

Figure 1

The company's switch 2 in the second floor of the office building, from the manager's boss apartment 50 meters right left, is the most suitable place to install AP, so
On the choice of AP Ann installed in the Switch 2, as long as the notebook into the LAN, and then the gateway and DNS set to 192.168.0.1 (corporate gateway) can be achieved online and LAN office.


　　First, select AP Equipment

Down is how to connect notebook LAN, wireless Internet must be to buy an AP, (AP function to see instructions)
I chose the Tp-link company tl-wr245 Wireless Broadband router. tl-wr245 Wireless Broadband Router set firewall, router, wireless technology in one, is small office and home wireless internet needs and design, outdoor transmission distance of 300M, indoor transmission distance 30~130m,tl-wr245 routing function is not used, it is not discussed.

The following is the tl-wr245 wireless Broadband router and ASUS notebook A3000,WINXP Home system, for example, tl-wr245 Wireless broadband routers are all the default settings, before installing the wireless AP manual read n times.

Second , the installation of AP

The tl-wr245 wireless Broadband router has five interfaces, a WAN interface, four LAN interface, because it is LAN access, with a straight-through double glue line (by 568A Standard) access to any LAN interface, the other end of the UTP access to the switch 2 in Figure 1 LAN interface, connected to the power, The Power lantern on the panel is on, and the WLAN light flash indicates that the wireless feature is turned on and working properly, to which the AP and the switch are connected.

　　third, notebook computer network card settings

Notebook computer has its own wireless network card, wireless network card driver has been installed correctly. (Driver installation is incorrect, please reinstall, drive the installation process please read the manual, here is not discussed). Wireless network card drivers must install the 802.11B protocol, WLAN Transport, TCP/IP protocol, file and print Sharing for Microsoft Networks (other protocols to be used) look at it! ）。

Figure 2

Company LAN workgroup for SD, so set up a workgroup for SD. Down double click TCP/IP protocol, set IP address to 192.168.58 (manager own IP, otherwise and LAN have conflict), subnet mask set to 255.255.255.0, Gateway 192.168.0.1,dns set to 192.168.0.1, click "OK", The settings for this wireless card are complete.

Figure 3 -

　　Iv. connection of AP and Notebook

ASUS A3000 Notebook Wireless switch for FN+F2 (there are some notebook wireless switches for the button, turn on the indicator light on, turn on the wireless function, wireless network card will automatically search the neighboring wireless AP, found in the taskbar will have a wireless signal indicator icon, indicating the wireless AP signal strength (like cell phone signal) as shown

Figure 4

Double-click on the signal icon, the following figure, the content is found in the wireless AP detailed description, the name "Tp-link", read the Click "Off."

Figure 5

Next, start---set up---network connection, open the network connection, as shown

Figure 6

The wireless card Displays the connection (if you hit a red X, the wireless card is not turned on, press FN+F2 on the keyboard to open the wireless card or right-click the connection, or right-click---select "Enable" OK). Double-click the Wireless Link to open the wireless network settings, as shown in the figure:

Figure 7

To set the Tp-link as a fixed connection, click Add, open the set up wireless network profile

Figure 8

Operation mode Select "Connect to wireless network and Internet", click "Next"

Figure 9

Security settings default, point to determine, to this wireless network has been connected to complete, the fixed connection is established after the following figure.

Figure 10

Open the Network Neighborhood, haha ~ ~, the local area network all the computer already inside, open the sharing computer to try, can visit. Open IE, enter the http://www.enet.net,GO~ Web site can also be on.
-

　　v. Security settings for AP

The connection is established, the above tl-wr245 all is the default setting, any computer that has wireless card can connect to join, network is unsafe, also want to carry on security setting. tl-wr245 IP is 192.168.1.1, subnet mask is 255.255.255.0, to enter the tl-wr245 Web management interface, first set the IP of the computer and tl-wr245 IP for the same network segment, I will be adjacent to the LAN computer IP for 192.168 1.2, open I E, enter 192.168.1.1 In the address bar, require the username and password, the default username and password is admin, open the Tl-wr245web management interface, such as figure

Figure 11

TL-WR245 Wireless AP has two kinds of filtering methods: "MAC address Filter" and "IP address filter", because the company notebook is not
More, so I chose MAC address filtering. Point to the left of the security settings----set up a firewall, select "Open Firewall", "Turn on MAC address filtering." After setting, click "Save", or it will be white, note that all settings will be saved.

Figure 12

Down point left Force security settings----MAC address filtering, add the need for wireless access to the computer MAC address can be completed after saving, as shown

Figure 13

And then modify the wireless router password (a bit more complex password settings), I believe very few people can invade, that is, some people want to invade, AP placed in the company, transmission distance is limited, I do not worry about a large number of hackers.

And then return to test OK, another with a few notebooks to test (MAC address to add), all normal, Notebook search AP, each point to connect to the Internet, annoying ~, it is best to build a fixed connection.

　　Summary

Wireless network is actually very simple, we have the opportunity to have a try. When building a wireless network, the biggest problem is the location of wireless broadband routers, to choose a suitable location. There is no relationship between the IP address of the wireless router and the IP of the access network, but try not to have the same network segment as the LAN. Wireless Internet settings Convenient, individuals do not need too much expertise, you can easily handle, home users have more than one computer wireless is too convenient, wireless security is not very safe, we should be careful.

-