Similar to how ARP viruses often directly attack internet cafes, causing frequent disconnections for users, solving network attacks has become a hot topic in the internet cafe industry. Internet cafe switches can identify, block, limit, and log ARP attacks and DDoS attack events. When purchasing switches for an internet cafe, you should buy products capable of addressing network attacks.
In the eyes of most network administrators and technicians, a switch is purely a device used to expand the number of computers online by providing more LAN ports鈥攎erely forwarding at wire speed without ever analyzing data packets. In reality, for an internet cafe switch to recognize various malicious data traffic, it must use an intelligent chip that gives it certain analytical processing capabilities, enabling it to accurately identify ARP attacks and DDoS attacks.
Routers and firewalls cannot fully resolve LAN security issues. Therefore, from a switch perspective, a security switch should possess the following features:
Support IP, MAC, and application-based Access Control List (ACL) functionality
Support common virus port filtering
Support rate limiting based on port, IP, MAC, and application
Support priority control (QoS) based on port, IP, MAC, 802.1p, and application
Support MAC+IP+VLAN+Port binding (ARP defense)
Support logging of ARP attack and DDoS attack events
To solve LAN security issues, a switch can no longer simply complete its forwarding tasks and call it a day; it also needs to identify and block ports