三层交换机配置dhcp

1,创建vlan

Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#vlan 50
Switch(config-vlan)#int vlan 50
Switch(config-if)#
%LINK-5-CHANGED: Interface Vlan50, changed state to up

Switch(config-if)#ip add 192.168.10.254 255.255.255.0
Switch(config-if)#end

2,划分端口号

Switch(config-if)#interface FastEthernet0/10
Switch(config-if)#switchport access vlan 50
Switch(config-if)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan50, changed state to up

查看：show vlan

image.png

3,配置dhcp

Switch(config)#ip dhcp pool laoyang vlan地址名
Switch(dhcp-config)#default-router 192.168.10.254 地址网关
Switch(dhcp-config)#dns 10.1.1.254 dns地址
Switch(dhcp-config)#network 192.168.10.0 255.255.255.0 网段

验证：

image.png

备注：

排除dhcp分配的ip地址范围

Switch(config)#ip dhcp excluded-address 192.168.10.1 192.168.10.50
192.168.10.1~192.168.10.50移除dhcp地址池
若在移除其他地址
Switch(config)#ip dhcp excluded-address 192.168.10.52   移除192.168.10.52