Troubleshooting of ARP attacks on wireless routers

When using a wireless router, we need to pay attention to ARP attacks. We mainly introduce connection errors and line disconnections, including improper settings, connection failures, and network exceptions caused by network attacks. With the rapid development of social information technology, enterprise network-based office has now entered the wireless network field. The biggest advantage of building a wireless network is that the network is easy to use and cost-effective without wiring. Therefore, most enterprises are undoubtedly the best choice for networking solutions. A large number of wireless routers are used in enterprises, making Fault Diagnosis and security assurance for wireless networks as important as wired networks. In enterprise wireless networks, there are often some user manuals that do not involve any problems or faults. Sometimes they are hard to cope with and cannot be solved. Below I will analyze the typical faults caused by wireless routers in wireless networks and provide solutions.

Connection error line failure

There are many reasons for the disconnection of network lines, but the first thing to check is whether there are errors in the connection configuration. Check the broadband access end before ensuring that the power supply of the wireless router is normal. The indicator on the wireless router can indicate whether the broadband line access end is normal. The indicator can be used to identify which light is the broadband access end and the user end, and observe whether the light is shining normally, if the light is not bright or the light is not blinking, It is a fault. We can change a broadband cable to replace the original line for connection. If the fault persists, check whether the placement of the wireless router is too far away from the receiving computer or there are large obstacles in the middle. In this case, place a new wireless router so that the wireless router and the receiving computer do not have too many obstacles, and the receiving computer is within the signal transmission range of the wireless router.

Wireless Nic check is also essential. You can replace the New Nic and reinstall the driver for debugging, click "view available wireless connections" in the NIC to refresh the "Network List" and set the NIC parameters. Then, click "properties" to check whether data is sent and received, and troubleshoot the problem. Of course, the hardware fault of the wireless router itself is also the direct cause of line failure, but this is not the scope we can solve, we should promptly contact the manufacturer for repair or replacement.

Unable to connect due to improper settings

"Settings" can be divided into two aspects: computer settings and router settings. The computer settings are relatively simple. Click to enter the "Network Neighbor" attribute, enable "wireless network connection", and then set "ip address", "subnet mask", and "Gateway ", you only need to make the IP address of the computer and the IP address of the wireless router in the same network segment. For more information about how to set the "Gateway", see the NIC description. Generally, it is the same as the IP address of the wireless router.

The wireless router settings are relatively professional and more complex. First, enter the IP address of the wireless router in the system browser, and enter the administrator login name and password of the router in the pop-up logon interface to enter the configuration interface. In this case, you need to check whether the broadband account and password provided by the network service provider are correct. If not, correct the password and try to connect, if the page still cannot be opened after connection, click the "Security Settings" option in the wireless router to check whether the "Network Firewall", "ip address filtering", and "MAC address filtering" options are enabled, correct and configure the settings to eliminate the failure of enabling the network.

Network attack causes network exceptions

ARP attacks and unauthorized intrusion into wireless LAN are now a typical case of network exceptions. Due to the negligence of security settings and the lack of security protection in the future, a few malicious hackers have caused great harm to the important information and confidential data of the enterprise. ARP attacks may cause network IP conflicts, data loss and overflow, and even worse, network paralysis. These phenomena pose a great threat to enterprise networking. First, go to "security mode with network", replace the IP address of the computer in the wireless Nic attribute, and then check whether the network can be connected. In addition, purchasing and installing professional anti-virus software and network firewall is one of the shortcuts.