3  三层网络注册配置举例

3.1  组网需求

如图1所示，集中式转发架构下，AC旁挂在L3 switch上，L3 switch做DHCP server为AP、Client和Host分配IP地址。需要实现无线客户端Client通过AP连接到AC上，并能与有线客户端Host互相访问，具体要求如下：

·              无线客户端Client通过VLAN 200接入网络，有线客户端Host通过VLAN 300接入网络；

·              AC属于VLAN 100，AP属于VLAN 400，AC和AP之间跨三层网络建立连接。

·              L2 switch 1通过PoE方式给AP供电。

图1 Fit AP通过三层网络注册到AC配置举例组网图

3.2  配置思路

·              在L3 switch上开启DHCP server功能，AP、无线客户端Client和有线客户端Host都能通过DHCP server自动获取IP地址。

·              在AC上配置缺省路由下一跳为L3 switch。

·              在DHCP server上配置AP通过option方式获取AC的IP地址完成三层注册。

·              在L2 switch 1上开启PoE功能，为AP设备供电。

·              在AC上配置无线服务，确保Client可以通过配置的无线服务接入网络。

3.3  配置注意事项

·              配置AP的序列号时请确保该序列号与AP唯一对应，AP的序列号可以通过AP设备背面的标签获取。

·              在L2 switch 1上开启PoE功能，为AP设备供电。

·              配置L2 switch 1和AP相连的接口为Access口。

3.4  配置步骤

3.4.1  配置AC

(1)      配置AC的接口

# 创建VLAN 100及其对应的VLAN接口，并为该接口配置IP地址。AP将通过DHCP option43方式获取该IP地址与AC建立CAPWAP隧道。

<AC> system-view

[AC] vlan 100

[AC-vlan100] quit

[AC] interface vlan-interface100

[AC-Vlan-interface100] ip address 192.168.10.1 255.255.255.0

[AC-Vlan-interface100] quit

# 创建VLAN 200，AC需要使用该VLAN转发无线客户端数据报文。

[AC] vlan 200

[AC-vlan200] quit

# 配置AC和L3 switch相连的接口GigabitEthernet1/0/1为Trunk类型，禁止VLAN 1报文通过，允许VLAN 100和VLAN 200通过。

[AC] interface gigabitethernet 1/0/1

[AC-GigabitEthernet1/0/1] port link-type trunk

[AC-GigabitEthernet1/0/1] undo port trunk permit vlan 1

[AC-GigabitEthernet1/0/1] port trunk permit vlan 100 200

[AC-GigabitEthernet1/0/1] quit

(2)      配置三层路由

# 配置AC缺省路由下一跳为L3 switch的IP地址为192.168.10.83。

[AC] ip route-static 0.0.0.0 0 24 192.168.10.83

(3)      配置无线服务

# 创建无线服务模板1，并进入无线服务模板视图。

[AC] wlan service-template 1

# 配置SSID为service。

[AC-wlan-st-1] ssid service

# 使能服务模板。

[AC-wlan-st-1] service-template enable

[AC-wlan-st-1] quit

(4)      配置AP

# 创建手工AP，名称为officeap，型号名称为WA4320i-ACN。

[AC] wlan ap officeap model WA4320i-ACN

# 设置AP的序列号为210235A1GQB147031200。

[AC-wlan-ap-officeap] serial-id 210235A1GQB147031200

# 进入AP的Radio 1视图，并将无线服务模板1绑定到Radio 1上，并指定客户端上线的VLAN为VLAN 200。

[AC-wlan-ap-officeap] radio 1

[AC-wlan-ap-officeap-radio-1] service-template 1 vlan 200

# 开启Radio 1的射频功能。

[AC-wlan-ap-officeap-radio-1] radio enable

[AC-wlan-ap-officeap-radio-1] return

3.4.2  配置L3 switch

(1)      配置L3 switch的接口

# 创建VLAN 100和VLAN 400，并配置IP地址，用于转发AC和AP间的CAPWAP隧道内的流量。

<L3 switch> system-view

[L3 switch] vlan 100

[L3 switch-vlan100] quit

[L3 switch] interface vlan-interface 100

[L3 switch-Vlan-interface100] ip address 192.168.10.83 255.255.255.0

[L3 switch-Vlan-interface100] quit

[L3 switch] vlan 400

[L3 switch-vlan400] quit

[L3 switch] interface vlan-interface 400

[L3 switch-Vlan-interface400] ip address 192.168.40.1 255.255.255.0

[L3 switch-Vlan-interface400] quit

# 创建VLAN 200，并为该接口配置IP地址。Client使用该VLAN接入无线网络。

[L3 switch] vlan 200

[L3 switch-vlan200] quit

[L3 switch] interface vlan-interface 200

[L3 switch-Vlan-interface200] ip address 192.168.20.1 255.255.255.0

[L3 switch-Vlan-interface200] quit

# 创建VLAN 300，并为该接口配置IP地址。Host使用该VLAN与AC建立连接。

[L3 switch] vlan 300

[L3 switch-vlan300] quit

[L3 switch] interface vlan-interface 300

[L3 switch-Vlan-interface300] ip address 192.168.30.1 255.255.255.0

[L3 switch-Vlan-interface300] quit

# 配置L3 switch和AC相连的接口GigabitEthernet1/0/1为Trunk类型，允许VLAN100和VLAN 200通过。

[L3 switch] interface gigabitEthernet 1/0/1

[L3 switch-GigabitEthernet1/0/1] port link-type trunk

[L3 switch-GigabitEthernet1/0/1] port trunk permit vlan 100 200

[L3 switch-GigabitEthernet1/0/1] quit

# 配置L3 switch和L2 switch1和相连的接口GigabitEthernet1/0/2为Trunk类型，禁止VLAN 1报文通过，允许VLAN 400通过。

[L3 switch] interface gigabitEthernet 1/0/2

[L3 switch-GigabitEthernet1/0/2] port link-type trunk

[L3 switch-GigabitEthernet1/0/2] undo port trunk permit vlan 1

[L3 switch-GigabitEthernet1/0/2] port trunk permit vlan 400

 [L3 switch-GigabitEthernet1/0/2] quit

# 配置L3 switch和L2 switch2相连的接口GigabitEthernet1/0/3为Trunk类型，禁止VLAN 1报文通过，允许VLAN 300通过。

[L3 switch] interfac gigabitEthernet 1/0/3

[L3 switch-GigabitEthernet1/0/3] port link-type trunk

[L3 switch-GigabitEthernet1/0/3] undo port trunk permit vlan 1

[L3 switch-GigabitEthernet1/0/3] port trunk permit vlan 300

[L3 switch-GigabitEthernet1/0/3] quit

(2)      配置DHCP server

# 开启DHCP server功能。

[L3 switch] dhcp enable

# 配置DHCP地址池1为AP分配地址范围为192.168.40.0/24，网关地址为192.168.40.1。

[L3 switch] dhcp server ip-pool 1

[L3 switch-dhcp-pool-1] network 192.168.40.0 mask 255.255.255.0

[L3 switch-dhcp-pool-1] gateway-list 192.168.40.1

# 配置DHCP Option43的内容为AC的十六进制IP地址。

[L3 switch-dhcp-pool-1] option 43 hex 8007000001c0a80a01

[L3 switch-dhcp-pool-1] quit

# 配置DHCP地址池2为Client分配地址范围为192.168.20.0/24，为Client分配的DNS服务器地址为网关地址（实际使用过程中请根据实际网络规划配置无线客户端的DNS服务器地址），网关地址为192.168.20.1。

[L3 switch] dhcp server ip-pool 2

[L3 switch-dhcp-pool-2] network 192.168.20.0 mask 255.255.255.0

[L3 switch-dhcp-pool-2] gateway-list 192.168.20.1

[L3 switch-dhcp-pool-2] dns-list 192.168.20.1

[L3 switch-dhcp-pool-2] quit

# 配置DHCP地址池3为Host分配地址范围为192.168.30.0 /24，为Host分配的DNS服务器地址为网关地址（实际使用过程中请根据实际网络规划配置Host的DNS服务器地址），网关地址为192.168.30.1。

[L3 switch] dhcp server ip-pool 3

[L3 switch-dhcp-pool-3] network 192.168.30.0 mask 255.255.255.0

[L3 switch-dhcp-pool-3] gateway-list 192.168.30.1

[L3 switch-dhcp-pool-3] dns-list 192.168.30.1

[L3 switch-dhcp-pool-3] quit

3.4.3  配置L2 switch 1

(1)      配置L2 switch 1的接口

# 创建VLAN 400，VLAN 400为AP接入的VLAN。

<L2 switch 1> system-view

[L2 switch 1] vlan 400

[L2 switch 1-vlan400] quit

# 配置L2 switch 1与L3 switch相连的接口GigabitEthernet1/0/1为Trunk类型，禁止VLAN 1报文通过，允许VLAN 400通过。

[L2 switch 1] interface gigabitEthernet 1/0/1

[L2 switch 1-GigabitEthernet1/0/1] port link-type trunk

[L2 switch 1-GigabitEthernet1/0/1] undo port trunk permit vlan 1

[L2 switch 1-GigabitEthernet1/0/1] port trunk permit vlan 400

[L2 switch 1-GigabitEthernet1/0/1] quit

# 配置L2 switch 1与AP相连的接口GigabitEthernet1/0/2为Access类型，允许VLAN 400通过，并开启PoE远程供电功能。

[L2 switch 1] interface gigabitEthernet 1/0/2

[L2 switch 1-GigabitEthernet1/0/2] port link-type access

[L2 switch 1-GigabitEthernet1/0/2] port access vlan 400

[L2 switch 1-GigabitEthernet1/0/2] poe enable

[L2 switch 1-GigabitEthernet1/0/2] quit

3.4.4  配置L2 switch 2

# 创建VLAN 300，VLAN 300为Host接入的VLAN。

<L2 switch 2> system-view

[L2 switch 2] vlan 300

[L2 switch 2-vlan300] quit

# 配置L2 switch 2与L3 switch相连的接口GigabitEthernet1/0/1为Trunk类型，禁止VLAN 1报文通过，允许VLAN 300通过。

[L2 switch 2] interface gigabitEthernet 1/0/1

[L2 switch 2-GigabitEthernet1/0/1] port link-type trunk

[L2 switch 2-GigabitEthernet1/0/1] undo port trunk permit vlan 1

[L2 switch 2-GigabitEthernet1/0/1] port trunk permit vlan 300

[L2 switch 2-GigabitEthernet1/0/1] quit

# 配置L2 switch 2与Host相连的接口GigabitEthernet1/0/2为Access类型，允许VLAN 300通过。

[L2 switch 2] interface gigabitEthernet 1/0/2

[L2 switch 2-GigabitEthernet1/0/2] port link-type access

[L2 switch 2-GigabitEthernet1/0/2] port access vlan 300

[L2 switch 2-GigabitEthernet1/0/2] quit

3.5  验证配置

(1)      在AC上查看到AP注册信息

# 在AC上使用命令display wlan ap all查看AP，可以看到AP的状态是R/M，表明AP已经成功注册到AC。

<AC> display wlan ap all

Total number of APs: 1

Total number of connected APs: 1

Total number of connected manual APs: 1

Total number of connected auto APs: 0

Total number of connected common APs: 1

Total number of connected WTUs: 0

Total number of inside APs: 0

Maximum supported APs: 3072

Remaining APs: 3071

Total AP licenses: 512

Remaining AP licenses: 511

                                 AP information

 State : I = Idle,      J  = Join,        JA = JoinAck,    IL = ImageLoad

          C = Config,    DC = DataCheck,  R  = Run,   M = Master,  B = Backup

AP name                AP ID   State   Model             Serial ID

officeap               1        R/M     WA4320i-ACN      210235A1GQB147031200

(2)      在AC上查看Client信息

# 在AC上使用命令display wlan client查看在线Client，可以看到Client已经连接到AP的radio1。

<AC> display wlan client

Total number of clients: 1

MAC address    User name            AP name               R IP address      VLAN

90b9-311a-bef6 N/A                  officeap              1 192.168.20.3    200

(3)      Host与Client可以相互ping通

# Client通过DHCP server获取到IP地址192.168.20.3，在Host上ping Client的IP地址可以ping通。同理，在Client上ping Host的IP地址也能ping通，不再赘述。

C:\Users\system32>ping 192.168.20.3 -t

Pinging 192.168.20.3 with 32 bytes of data:

Reply from 192.168.20.3: bytes=32 time=2470ms TTL=63

Reply from 192.168.20.3: bytes=32 time=2ms TTL=63

Reply from 192.168.20.3: bytes=32 time=1427ms TTL=63

Reply from 192.168.20.3: bytes=32 time=2ms TTL=63

Reply from 192.168.20.3: bytes=32 time=86ms TTL=63

Reply from 192.168.20.3: bytes=32 time=142ms TTL=63

Reply from 192.168.20.3: bytes=32 time=561ms TTL=63

Reply from 192.168.20.3: bytes=32 time=84ms TTL=63

Reply from 192.168.20.3: bytes=32 time=465ms TTL=63

Reply from 192.168.20.3: bytes=32 time=114ms TTL=63

Reply from 192.168.20.3: bytes=32 time=124ms TTL=63

Reply from 192.168.20.3: bytes=32 time=446ms TTL=63

Ping statistics for 192.168.20.3:

    Packets: Sent = 12, Received = 12, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

    Minimum = 2ms, Maximum = 2470ms, Average = 495ms

Control-C

^C

C:\Users\system32>