相关配置命令：
config)#ip dhcp pool [地址池名]

(config)#ip dhcp excluded-address [不分配的地址]

(dhcp-config)#network [要分配的地址] [掩码]

(dhcp-config)#lease [租约]

(dhcp-config)#default-router [默 认网关]

(dhcp-config)#dns-server[dns 服务器]

然后要对自动获取地址的vlan 进行设置

(config)#ip helper-address [交换机地址]

再将端口划分到vlan 里

show config:

ip dhcp excluded-address 10.0.199.200 10.0.199.254

!

ip dhcp pool test

network 10.0.199.0 255.255.255.0

default-router 10.0.199.1

dns-server 10.0.199.252

lease 0 0 5

nterface Vlan199

ip address 10.0.199.1 255.255.255.0

ip helper-address 10.0.1.1

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