DHCP snooping学习笔记

POOPE

此配置需要在接入层做，dhcp snooping的作用是将所有接口设置成非信任接口，达到防止dhcp的欺骗
此功能只在接入层部署，同时上联口需要配置为信任接口（dhcp snooping trusted）
1-F-SW2

sysname 1-F-SW2
#
undo info-center enable
#
vlan 8
#全局下开启DHCP
dhcp enable
#全局下开启dhcp snooping
dhcp snooping enable
#针对vlan开启dhcp snooping
vlan 8
 dhcp snooping enable
#
interface Ethernet0/0/1
 port link-type access
 port default vlan 8
#将上连接口配置为信任接口
interface Ethernet0/0/2
 port link-type trunk
 undo port trunk allow-pass vlan 1
 port trunk allow-pass vlan 8
 dhcp snooping trusted 
#
interface Ethernet0/0/4
 port link-type access
 port default vlan 8
#
return

2-F-SW2

sysname 2-F-SW2
#
undo info-center enable
#
vlan 9
#
dhcp enable
#
dhcp snooping enable
#
vlan 9
 dhcp snooping enable
#
interface Ethernet0/0/1
 port link-type trunk
 undo port trunk allow-pass vlan 1
 port trunk allow-pass vlan 9
 dhcp snooping trusted
#
interface Ethernet0/0/2
 port link-type access
 port default vlan 9
#
return