MAC layer attacks:

1、MAC 地址泛洪

  switchport port-security 来防止这种情况

  switchport port-security maximum x

  switchport port-security mac-address aaaa.bbbb.cccc

  switchport port-security sticky

2、未知单播帧

  switchport block unicast阻止未知单播帧

VLAN attacks:

非trunk switchport mode access 关闭DTP

VACL:IP/MAC   FWD/DRP


private vlans

1、VTP模式设为透明

2、pri/sec VLAN

3、将端口划进相应的VLAN

Spoofing attacks:


Attacks on switch devices: