Strengthen self-protection awareness to ensure the security of wireless routers (1)

With the development of science and technology and the improvement of people's living standards, it is very common to have more than two computers in a modern family. Many families choose wireless routers to share the Internet. Wireless Internet access frees people from the tangle of lines and allows them to surf the Internet freely in the wireless world. But please note that the people here refer not only to your family, but also to your neighbors or even strangers.

With the release of the IEEE 802.11n draft, the transmission speed of wireless routes has also been greatly improved. However, many users only pay attention to the transmission speed, but ignore the security of wireless networks. Taking the author as an example, seven or eight wireless connections can be found on the Chinese TV station at home, and no password is set. The author can easily "share" his network bandwidth. According to the survey, 90% of network intrusions are caused by the absence of corresponding security settings on the wireless router. The following describes several basic security settings to help you stay away from most threats.

1. disable DHCP.

DHCP is the abbreviation of Dynamic Host Configuration Protocol (Dynamic Host Allocation Protocol). Its main function is to help users randomly allocate IP addresses, this saves the trouble of manually setting IP addresses, subnet masks, and other required TCP/IP parameters. This is a user-friendly feature, but it is used by many people with ulterior motives. Generally, the DHCP function is enabled by default, so that all wireless devices in the signal range can be automatically allocated to the IP address, which leaves a great security risk. Attackers can easily obtain a lot of information about your vro through the assigned IP address, so it is necessary to disable the DHCP function.

2. wireless encryption

Nowadays, many wireless routers have the wireless encryption function, which is an important protection measure for wireless routers. Data Encryption in radio waves ensures the security of transmitted data information. Generally, wireless routers and APs have the WEP encryption and WPA encryption functions. WEP generally includes 64-bit and 128-bit encryption types, you only need to enter 10 or 26 hexadecimal strings as the encryption password to protect the wireless network. The WEP protocol encrypts data transmitted wirelessly between two devices to prevent illegal user eavesdropping or intrusion into the wireless network. However, the WEP Key is generally stored in Flash, therefore, some hackers can use vulnerabilities in your network to easily access your network.

WEP encryption appeared earlier and has now been upgraded to WPA encryption. WPA is a standard-based and interoperable WLAN Security Enhancement solution, the data protection and access control level of existing wireless LAN systems can be greatly enhanced; WPA enhances the algorithm for generating encryption keys, even if hackers collect and parse group information, it is almost impossible to calculate a general key. The emergence of WPA makes network transmission more secure and reliable.

It should be noted that the wireless encryption function is usually disabled when a wireless router leaves the factory, but if you give up this function, your network is an extremely insecure network, therefore, we recommend that you enable this function after setting it.