以Cisco交换机为例：switch（config）#ip dhcp snoopingswitch（config）#ip dhcp snooping vlan 10/*在Vlan10启用dhcp sn
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以Cisco交换机为例：
switch（config）#ip dhcp snooping
switch（config）#ip dhcp snooping vlan 10
/*在Vlan10启用dhcp snooping
switch（config-if）#ip dhcp snooping limit rate 10
/*dhcp包的转发速率，超过后接口就shutdown，默认不限制;
switch（config-if）#ip dhcp snooping trust
switch#ip dhcp snooping binding 0009.3452.3ea4 vlan 7 192.168.10.5 interface gi1/0/10
switch（config）#ip dhcp snooping database tftp:// 10.1.1.1/dhcp_table
show ip dhcp snooping
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