Pay attention to the configuration details of wireless routers

This article describes in detail how to configure a wireless router. What problems should we pay attention? The following article will give you a detailed answer.

In the construction and configuration of the wireless LAN, the focus is on the configuration of the wireless router. The change in the wireless router will directly affect the overall performance of the wireless network. Location, configuration, adjustment, and security are all the top priorities in Wireless LAN configuration.

In today's increasingly mature Wireless LAN, the speed problem has been solved. The current mainstream products not only achieve the speed of common wired Ethernet, but also have basic security assurance. More importantly, wireless networking does not require wiring and is the best choice for networking solutions. In addition to the popularity of various types of netbooks, it is time for most users to purchase wireless routers.

However, with the popularization of wireless routers, the corresponding problems are also increasing. How to configure a wireless router after I buy a wireless router is the most important concern. In fact, configuring a wireless network is not complex. The steps for configuring a wireless router are similar to those for configuring a wired router, but you need to pay attention to it in a few minutes. The following is a detailed introduction by the author.

Place in place

After obtaining the wireless router, the first thing to do is placement problems. The function of a wireless router is to convert the signal of a wired network into a wireless signal, which is the core of the entire a wireless network. Therefore, its position determines the signal strength and transmission rate of the entire Wireless LAN. Therefore, we recommend that you select a location that is not easily blocked and the signal can cover all corners of the house. For new users, the placement of wireless routers can refer to the following methods.

The location of the wireless router should be relatively high. Wireless signals are transmitted in a straight line. Every time an obstacle occurs, wireless signals are weakened, especially metal objects.

The wireless router should be in the center of the room as much as possible. Because the Wireless AP coverage is a circular area, only when the Wireless AP is placed in the center of the room can every location in the room receive wireless signals, so as to effectively access the wireless LAN. The wireless network can automatically adjust the transmission rate to adapt to complex network environments. The closer it is to the Wireless AP, the stronger the wireless signal, the smaller the interference, and the higher the data transmission rate.

Do not wear too many walls, especially reinforced concrete walls. The experiment shows that, at a distance of 10 meters, after a wireless signal passes through two brick walls, it can still reach the nominal highest transmission rate, but after passing through a layer of floor, the transfer rate will be half of the nominal rate. It can be seen that the reinforced concrete wall has a serious impact on wireless signals.

Careful Configuration

After finding a proper location, the next step is the configuration of the wireless router. Each network device that complies with the TCP/IP protocol has its own IP address, and the wireless router is no exception. Generally, a wireless router has its own fixed IP address in the LAN. This design also facilitates us to configure and test the wireless router by accessing this IP address. Of course, the IP addresses of wireless routers of different brands are different. For details, refer to the relevant instructions. Note that the wireless network adapter must be in the same IP address segment as the wireless router. For example, if the IP address of the Siemens wireless router is 192.168.254.254, the IP address of the network adapter can be specified as any address on the 192.168.254.XXX network segment.

Next, open your browser and enter the address http: // 192.168.254.254/of the wireless LAN node in the address bar. view the manual and obtain the management password of the wireless LAN node, after correct input, you can enter the management interface of the wireless network node. For a new router that has not been set up, some will also see the setting wizard (SetupWizard ). On pages such as ConnectionConfiguration, we can select the broadband network type. Generally, ADSL selects via PPP over Ethernet, and Cable or FTTB selects via DHCP. If the ISP needs to enter the user name and password, we can enter the corresponding location below and set Timeout to around S. Then, we can set the ESSID default value of the wireless router to WLAN. Do not forget to click the Save button after setting.

If you still need to connect a 100/10 MB wired network to a wireless router, you need to set it further. In the SystemIPConfiguration configuration interface under options such as IP/DHCP, when DHCP is set to Enable, in this way, once you set the TCP/IP attribute of the wired network card and wireless network card to automatically get the IP address, you can get an IP address from the wireless router. As for the dns ip address, you can query the local ISP, which is generally not set.

Adjust the client

The most important part of the client configuration is the essid id, which must be exactly the same as the ESSID value of the wireless router (including uppercase and lowercase letters ). The essid id is like a password between the wireless client and the wireless router. Only when they are identical can the wireless Nic access the wireless router, this is also an important measure to ensure the security of the wireless LAN. The ESSID identifiers for different wireless NICs are different, some are in the control panel, and some are using dedicated applications for NICs. For details, refer to the instruction manual. Generally, wireless routers of the same brand and wireless network interfaces use the same essid id default value. You do not need to set the default value. However, this may cause some security risks for commercial users. We recommend that you change the essid id.

Other configurations of the wireless client are very simple. In the past, annoying network settings can be put aside. Open the TCP/IP attribute of the wireless network adapter in the network attribute of the control panel, set the IP address of the wireless LAN adapter to automatically get, or keep it in the same network segment as the wireless network node. Now, if the wireless LAN adapter can connect to the wireless network node normally.

The laptop can access the Internet normally. If the connection fails, check the network settings or adjust the location of the wireless network node.

At this point, the installation process is not complete. At this time, although the broadband sharing function is implemented, it is very insecure. If your neighbor has a wireless network card installed, he will be able to intrude into your wireless LAN, and even use your broadband to download BT. So I need to encrypt the network.

Disable Security

WEP encryption is the most common encryption method in the 802.11 series wireless LAN. I log on to the management interface of the wireless LAN node again through the IE browser, find the security option, and choose to enable the WEP encryption function (this function is usually disabled in the factory settings of the wireless network node ), enter a hexadecimal character (the character must be 0 ~ 9 or ~ F) as an encrypted string (the encrypted string must be well remembered and cannot be connected to a wireless network node after it is lost), save the settings and restart the wireless network node (depending on the WEP type, the number of digits of the encrypted string is also different. Usually 64-bit encryption requires a 10-digit string, while 128-bit encryption requires a 26-digit string)

After the restart, the wireless network adapter will not be able to connect to the wireless LAN node. Now you need to modify "wireless network connection attributes ". Select "Network neighbors", "properties", and "Wireless Network Connection Properties", and then select "wireless network configuration ". Find your own wireless network node in the available network. If there are no other wireless network nodes nearby, only one network should be listed here. Otherwise, other nearby wireless networks will also be listed.

Next, click "attribute" to activate "Data Encryption (WEP enabled, enter the encrypted string in the "Network key" and "Confirm network key" columns below, and then click "OK ", the wireless network adapter can be correctly connected to the wireless network node.

Experience Sharing

Generally, the 802.11 series of Wireless LAN products have good compatibility. Most wireless NICs and wireless routers do not have compatibility problems. But for stability considerations, for high requirements, I suggest using the same brand of wireless routers and wireless network interfaces.

The load-bearing wall of reinforced concrete has a strong obstacle to wireless signals. Therefore, the best solution to the "duplex" residential and Villa-type home environment is to configure a wireless router for each layer. In practical application, the indoor AP coverage can be up to 30 meters.

The actual usage rate of 802.11b is only about 40% of the nominal value, and the converted data transmission rate is about 64/128 kb/s. If it is set to-bit WEP encryption, the transmission rate will be further reduced, therefore, you must pay more attention to interference during use and try to stay away from microwave ovens, cordless phones, and Bluetooth devices.

If the wireless signal is suddenly weak, no physical changes are made. You can try to change the wireless channel or add an external antenna.

Windows XP has built-in support for WLAN, Which is plug-and-play and easy to use and set. Windows 98, Windows ME, and Windows 2000 are not as stable and easy-to-use as Windows XP for wireless LAN, and occasionally conflict occurs. Therefore, if the hardware configuration is high enough, try to use Windows XP. At the same time, it should be noted that the operating systems before Windows 95 (including Windows 95) do not support Wi-Fi.