Wireless Router Security Settings

We have been studying the working principle of network security settings. Here we will introduce the vro settings in detail. SSID, channel and other issues.

Network rub, ARP attacks, and Trojan viruses are all difficult to prevent. They not only affect the network speed, but also cause leakage of confidential data and irreparable losses. Users are troubled by the security of wireless networks. How can we ensure network security? Below, I will summarize the security settings of the wireless router, hoping to help you have a comprehensive understanding.

SSID

The short name of the SSID is Service Set Identifier. It is short for "Service Group Identifier" and is a Identifier of a wireless route network. It can be used to identify wireless devices found on a specific wireless network. All workstations and access points must use the same SSID to communicate with each other. The SSID is a 32-bit data, whose values are case sensitive. It can be the physical location identifier, company name, or department name of a wireless LAN.

Channel

We can understand the Channel as a frequency band. It is called a Channel. It uses wireless signals as a data signal transmission Channel for transmission media. However, wireless broadband routers can run on many channels. Different wireless network devices used in the adjacent range must use different channels. Otherwise, the devices may experience signal interference. If there is only one wireless device, you only need to use the factory default value. If you have multiple wireless devices, you need to stagger the channels used by each device.

Security Settings

For a secure wireless network, we need to consider security factors in terms of encryption and authentication. The most fundamental purpose of wireless network application encryption technology is to achieve the same security level as wired network. Therefore, WEP is adopted in the standard. It is a dedicated security mechanism that can encrypt business flows and authenticate nodes. It is mainly used for the confidentiality of link layer information data in Wireless LAN. WEP adopts symmetric encryption mechanism, and data encryption and decryption adopts the same key and encryption algorithm. WEP uses an encryption key to encrypt the data portion of each packet exchanged on the 802.11 Network. After encryption is enabled, two 802.11 devices must enable encryption and have the same encryption key to communicate. WEP encryption is disabled by default, that is, not encrypted.

The security parameters of a wireless router are optional. Generally, there are three security parameters:
1. WEP Key format: hexadecimal digits; ASCII characters;
2. WEP encryption level: Disable encryption function; 4064) bit encryption; 128 bit encryption. The default value is Disable Encryption );
3. WEP key value: set by the user.

To build a wireless network, we need the cooperation between the wireless router and the wireless network card. They can encrypt the transmitted data to avoid data leakage. WEP has two levels of encryption: 4064 bits and 128 bits. Currently, 128 bits are relatively secure. Because the WEP key can be a group of randomly generated hexadecimal numbers or ASCII characters selected by the user. Each Wireless Broadband Router and wireless workstation must use the same key for communication. Encryption is optional. Most wireless routers disable Encryption by default. Encryption may affect transmission efficiency.

To enable the encryption function, select the "ASCII character" WEP Key format. In the WEP encryption method), select 4064) bit or 128 bit WEP Key. When using the 4064) bit encryption method, you can enter four different WEP keys, but only one key can be selected at the same time. Each key consists of 10 hexadecimal characters. Save it in a Wireless Broadband Router. By default, select one of the four keys for use. When using a 128-bit encryption party, Enter 26 hexadecimal characters as the WEP Key. In this case, you can only enter one key. Some wireless NICs can only use 4064) bit encryption, so you may need to select a lower encryption level. If all your clients support 128-bit encrypted communication, select 128-bit. If any client supports only 4064-bit encrypted communication, select 4064-bit. To enable encryption, select the encryption type and WEP Key for all wireless routers, access points, and workstation on the network. To increase network security, we need to change the key periodically. When changing the key used by a wireless device, remember to change the keys for all radio devices and Access Points on the network at the same time.