Why does ARP go offline as soon as it is attacked?

Before there was no ARP spoofing, the data flow was from "gateway" to "native". After an ARP spoofing attack, the data flow direction is from the "gateway" to the "attacker" to the "local", and all communication data between the "local" and the "gateway" will flow through the attacker ("NMS"), resulting in the failure to access the Internet normally.

It takes up your data traffic.

Hello landlord.

We recommend that you enable ARP Firewall.

ARP firewall, simply put, is a LAN firewall, when your computer is a computer belonging to the LAN, when you use this ARP firewall, you can prevent others from attacking you with software such as "network law enforcement officer, network scissorhands, LAN terminator", so that your computer cannot access the Internet.

Open PC Manager - Home Page - Toolbox - ARP Firewall is on.

The first condition of ARP attack is the local area network, that is, someone else uses your IP to set up the network to surf the Internet, so there will be conflicts and frequent disconnections. 360 has a security feature to prevent ARP attacks, you can try it out. Or you can change to another IP that can surf the Internet.

ARP attack is to achieve ARP spoofing by forging IP addresses and MAC addresses, which can generate a large amount of ARP traffic in the network to block the network, and the attacker can change the IP-MAC entry in the ARP cache of the target host as long as the attacker continuously sends out forged ARP response packets, causing network interruption or man-in-the-middle attacks. You can install a 360 Trojan firewall by ticking the small tick under 360.

An ARP attack on your computer indicates that some users in your LAN have been infected with a virus, and an ARP attack is an attack technique against the Ethernet Address Resolution Protocol (ARP). This type of attack allows an attacker to obtain data packets on a LAN and even tamper with them, and can make it impossible for a specific computer or all computers on the network to connect properly. It is recommended that friends use a 360ARP firewall to protect your computer.

The 360ARP firewall is integrated into 360 Security Guard and needs to be manually turned on to be effective. There is a Trojan firewall on top of 360 Security Guard, and you can click on it to turn on LAN protection (ARP attack).