无线控制器的配置步骤（必须配置的）

与交换机连接的接口配置，vlan 13为设备管理IP接口，vlan12为无线vlan接口，通过trunk连接交换机传输vlan数据流。这里vlan13为ap接入vlan，vlan12为无线终端接入vlan

配置无线设备vlan的管理IP配置以及无线AP的DHCP地址池配置

配置无线客户端vlan的接口IP以及无线客户端的DHCP地址池

配置无线SSID

配置无线连接的加密算法和认证方式

monitor界面可以看到LAP连接

!交换机与控制器之间做trunk连接

interfaceGigabitEthernet1/0/6

descriptionLINK-WLC

switchport trunkencapsulation dot1q

switchport modetrunk

!

vlan 12name WIRELESS!vlan 13name WLC!ip dhcp pool wireless network 10.40.58.0255.255.255.0 default-router10.40.58.254!ip dhcp pool ap-dhcp network 10.40.59.0255.255.255.0 default-router10.40.59.254interface Vlan12ip address 10.40.58.254 255.255.255.0!interface Vlan13ip address 10.40.59.254255.255.255.0接下来只要将接入层交换机配置如下:（接入层交换机与3层交换机通过trunk连接）
将连接AP的端口都划到AP的vlan中，这样AP获取到10.40.59.9段的IP，无线客户端获取到10.40.58.0的地址段
interfaceFastEthernet0/21
switchportaccess vlan 13
!

配置时发生错误的一个案例

原始拓扑图

在上述的拓扑图，3层交换机和WLC之间通过trunk连接，配置为untagged报错

估计是bug，后来只好将拓扑图修改为如下，将WLC和3层交换机之间的连接改为port-channel，顺便改变了无线获取的要求：

然后在WLC的LAG里改为enable，即启用trunk连接，打上port-channel。

要求拓扑图实现的效果如下：

1、LAP获取的地址段同WLC的网段相同，为192.168.33.0/242、无线终端获取的地址为汇聚层交换机上另外定义的网段，为10.40.24.0/24.汇聚层交换机的配置如下ip routingip dhcp excluded-address 10.40.24.1 10.40.24.9ip dhcp excluded-address 10.40.24.240 10.40.24.254ip dhcp excluded-address 192.168.33.1 192.168.33.189ip dhcp excluded-address 192.168.33.240 192.168.33.254!ip dhcp pool wireless  无线客户端的地址池 network 10.40.24.0 255.255.255.0 default-router10.40.24.254!ip dhcp pool ap  ap获取的地址 network 192.168.33.0 255.255.255.0 default-router 192.168.33.254 option 43 hex f108.c0a8.21f9 lease 7!!!!no file verify autospanning-tree mode pvstspanning-tree extend system-id!vlan internal allocation policy ascending!vlan 2name OFFICE!vlan 8name Wireless!!interface Port-channel1switchport trunk encapsulation dot1qswitchport mode trunk!interface FastEthernet1/0/1!interface FastEthernet1/0/2switchport trunk encapsulation dot1qswitchport mode trunk!interface FastEthernet1/0/3!interface FastEthernet1/0/4!interface FastEthernet1/0/5!interface FastEthernet1/0/6!interface FastEthernet1/0/7!interface FastEthernet1/0/8!interface FastEthernet1/0/9!interface FastEthernet1/0/10!interface FastEthernet1/0/11!interface FastEthernet1/0/12!interface FastEthernet1/0/13!interface FastEthernet1/0/14!interface FastEthernet1/0/15!interface FastEthernet1/0/16!interface FastEthernet1/0/17!interface FastEthernet1/0/18!interface FastEthernet1/0/19!interface FastEthernet1/0/20!interface FastEthernet1/0/21!interface FastEthernet1/0/22!interface FastEthernet1/0/23!interface FastEthernet1/0/24!interface GigabitEthernet1/0/1switchport trunk encapsulation dot1qswitchport mode trunk!interface GigabitEthernet1/0/2switchport trunk encapsulation dot1qswitchport mode trunkchannel-group 1 mode on!interface Vlan1ip address 192.168.33.254 255.255.255.0no ip mroute-cache!interface Vlan2no ip addressno ip mroute-cache!interface Vlan8ip address 10.40.24.254 255.255.255.0ip helper-address 192.168.33.249option 43 hexf108.c0a8.21f9 option43属性主要应用在WLAN中AP设备从dhcp服务器获取地址后，通过dhcp服务器下发的option43属性去找AC注册，本例中主要用于AP通过192.168.33.249的WLC上获取ip地址ip helper-address 192.168.33.249 dhcp中继，通过WLC的DHCP地址池中转获取地址，但是这里我们在WLC上配置了主要DHCPserver为192.168.33.254