DHCP Snooping功能 动态ARP Inspection(DAI,Dynamic ARP Inspection) 源IP检测防护功能(IP Source Guard) 防ARP欺骗攻击、防DHCP欺骗攻击、防IGMP攻击(filter arp,filter dhcp,filter igmp) 访问列表控制技术〔MAC ACL、IP(TCP/UDP)ACL、VACL〕