The network is under ARP attack and cannot be connected to the Internet. How to prevent it

In general, there are generally three ways to prevent ARP spoofing:

1) Bind IP and MAC address, and can also bind the IP address and MAC address of the gateway in a single machine, which can completely solve the ARP attack through two-way binding.

2) Write files about processing the repair of the network.

3) Compared with the first two, the third method is relatively simple and trouble-free, opening each to kill the soft"ARP Firewall"Just enable it, as long as there is a prompt, you don't need to care about ARP harassment. Personally, I recommend using Jinshan.

As for the specific operation of the first two points, you can find the corresponding article by searching on the Internet.

These problems will not occur if the internal network is well governed.

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There are many solutions, and the best way is to find out the machine that sends ARP broadcast packets indiscriminately, and the best way is to shut him up.

1. All machine IPs are bound to MAC. (This can be done on a network device, or it can be bound on each computer).

2. Each machine is equipped with ARP firewall.

3. Use tools, software, and your own judgment to find out the MAC address of the machine that sends ARP broadcast packets randomly, find out the computer, antivirus, reinstall the system, etc.

Installing Kingsoft ARP Firewall or Color Shadow ARP Firewall is free.

Improper settings do not allow you to connect.

Click to enter the "Network Neighbor" attribute, turn on "Wireless Network Connection", and then set "IP Address", "Subnet Mask" and "Gateway", as long as the IP address of the computer is in the same network segment as the IP address of the wireless router;

2.Cyber attacks cause network anomalies.

Enter the "Safe Mode with Network", change the IP address of the computer at the wireless network card attributes, and then check the check book to see if it can be connected to the Internet. In addition, buying and installing professional antivirus software and network firewall is one of the shortest ways to do it.

3.Some of the routers are out of function and cannot be used.

If the current software version does not support this feature, upgrade it first. Click to enter the "System Tools" option of the wireless router, select "Software Upgrade" after entering, the current software version and hardware version will be displayed in the dialog interface, and enter the pants into the "file name" in the pop-up dialog box and click "Upgrade".

Anti-ARP spoofing software (antiarpsniffer3).

antiarpsnifferv3forwindows98/me/2000/xp/2003

Function introduction: % Defend against all malicious programs that use ARP technology, find suspicious and automatically rewrite ARP data.

2. The software has the function of tracking ARP attackers, and can track the IP address of the other party.

3. The software automatically repairs the ARP data and keeps the network uninterrupted.