Wireless settings of industrial 4g router

1.SSID

SSID (Service Set Identifier)is the abbreviation of “Service Set Identifier”. It is an identifier of a wireless network and is used to identify the identity of a wireless device found on a specific wireless network. All workstations and access points must use the same SSID to communicate with each other. SSID is a 32-bit data, and its value is case sensitive. It can be the physical location identification of the wireless local area network, your name, company name, or company name and department, preferred slogans and other favorite characters, but if it is set to non-English, it will display garbled characters on some devices or fail to connect. On the problem.

2. Channel

The channel is also called “frequency band (Channel)”, which is a data signal transmission channel using wireless signals as the transmission medium. The wireless broadband router can operate on many channels. Various wireless network devices located in the vicinity must be located on different channels, otherwise signal interference will occur. If you only have one device, then the default channel value of 6 may be the most appropriate. Unless there is a special reason to change the channel (for example, there is interference from Bluetooth, microwave ovens, mobile phone towers, or other access points in the area), please use the factory defaults. If you have multiple wireless routers and wireless access points on the network, it is recommended to stagger the channels used by each device. For example, 802.11g and 802.11b wireless standards have 11 channels, but only 3 are non-overlapping channels (channel 1 , Channel 6, Channel 11).

Wireless router security settings

Compared with wired networks, sending and receiving data through wireless local area networks is easier to be eavesdropped on. To design a complete wireless LAN system, encryption and authentication are security factors that need to be considered. The most fundamental purpose of applying encryption technology in wireless local area networks is to enable wireless services to achieve the same security level as wired services. In response to this goal, the IEEE 802.11 standard adopts the WEP (Wired Equivalent Privacy: Wired Equivalent Privacy) protocol to set up a special security mechanism for the encryption of business flows and the authentication of nodes. It is mainly used for the confidentiality of link layer information and data in the wireless local area network. WEP uses a symmetric encryption mechanism, and data encryption and decryption use the same key and encryption algorithm. WEP uses encryption keys (also known as WEP keys) to encrypt the data portion of each data packet exchanged on an 802.11 network. After enabling encryption, for two 802.11 devices to communicate, they must enable encryption and have the same encryption key. WEP encryption is disabled by default, that is, no encryption. Wireless security parameters are optional settings, generally there are three parameters, as follows:

⑴WEP key format: hexadecimal digits; ASCII characters.

⑵ WEP encryption level: disable encryption function; 40 (64) bit encryption; 128 bit encryption. The default value is Disable Encryption.

⑶ WEP key value: set by the user.

The wireless router cooperates with the wireless network card that supports the encryption function, which can encrypt the transmission

Input data, making it difficult for others to steal your information midway. There are two levels of WEP encryption: 40 (64) bits and 128 bits. It is safer to use 128-bit encryption. The WEP key can be a set of randomly generated hexadecimal numbers or ASCII characters selected by the user. In general, we choose the latter, which is entered manually. Each wireless broadband router and wireless workstation must use the same key to communicate. But encryption is optional. Most wireless routers disable encryption by default. Encryption may have an impact on transmission efficiency.

To enable the encryption function, please select the WEP key format of “ASCII characters”, and select 40 (64) bit or 128 bit WEP key under WEP encryption method (method). When using 40 (64) bit encryption, you can enter four “handles” different WEP keys, but you can only choose one to use at the same time. Each key consists of 10 hexadecimal characters. Save it in the wireless broadband router. By default, one of the four keys is selected to use. When using 128-bit encryption, please enter 26 hexadecimal characters as the WEP key. In this case, only one key can be entered. Some wireless network cards can only use 40 (64) bit encryption, so you may want to choose a lower encryption level. If all your clients can support 128-bit encrypted communication, please select 128-bit; if any client can only support 40 (64)-bit encrypted communication, please select 40 (64)-bit. To enable encryption, select the encryption type and WEP key for all wireless routers, access points, and workstations on the network. To increase network security, you can change the key frequently. When changing the key used by a wireless device, please remember to change the keys of all wireless devices and access points on the network at the same time.