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Does your network often fall out of line, does the IP conflict often occur?
Are you concerned about communication data being monitored (e.g. MSN, QQ, EMAIL)?
Is your network speed limited by the management software (such as aggregated network management, Peer-to-peer Terminator)?
Do you suffer from all kinds of ARP attack software (such as network law enforcement officer, Network scissors hand, LAN Terminator)?
The root causes of all these problems are ARP spoofing (ARP attacks). Before ARP spoofing, the data flow is this: Gateway <-> native. After ARP spoofing, the data flow is this: Gateway <-> attacker ("network management") <-> native, all communication data between the computer and the gateway will flow through the attacker ("network management"), so "trampled" is inevitable.
ARP firewall through the system kernel to intercept the false ARP packet and the active notification Network Guan Ben machine correct MAC address, you can ensure that the data flow correctly, not through the third party, so as to ensure the security of communication data, to ensure that the network unimpeded, to ensure that the communication data is not controlled by the third party, so
ARP firewall nine major functions
1. Block ARP attack.
(A) The system kernel layer to intercept the external false ARP packets, protect the system from ARP spoofing, ARP attacks, keep the network unblocked and communication security;
(B) intercepting the native external ARP attack packets at the system kernel level, in order to reduce the inconvenience caused to the users after the malicious program is infected;
2. Intercept IP conflicts. The IP conflict packet is intercepted in the kernel layer of the system, which protects the system from the attack of IP conflict.
3. Dos attack suppression. In the system kernel layer, the TCP Syn/udp/icmp/arp Dos attack packet is intercepted and the program of malicious DOS attack is positioned to ensure the smooth network;
4. Safe Mode. In addition to the network, do not respond to other machines sent Arp Request, to achieve stealth effect, reduce the chance of being attacked by ARP;
5. ARP data analysis. Analyze all ARP packets received by this machine, master network dynamics, identify potential attackers or poisoned machines;
6. Monitor the ARP cache. Automatic monitoring of the native ARP cache table, such as the discovery of the gateway MAC address by malicious program tampering, will be alerted and automatically repaired to maintain a smooth network and communication security;
7. Active defense. To maintain communication with the gateway, notify the correct MAC address of the gateway, in order to keep the network smooth and communication security;
8. Track the attackers. Automatically lock the attacker's IP address quickly after discovering the attack behavior;
9. Killing Arp virus. When it is discovered that this machine has external attack behavior, it automatically locates the malicious program and virus program of native infection.
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