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cisco 无线控制配置说明

作者:高考题库网
来源:https://www.bjmy2z.cn/gaokao
2021-02-09 16:24
tags:

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2021年2月9日发(作者:behavioral)




Contents


Introduction



Prerequisites









Requirements









Components Used









Conventions



Background Information



Configure









Network Diagram









Configure the WLC for Basic Operation









Configure the Switch for the WLC









Configure the Switch for the APs



Verify



Troubleshoot









Commands









Controller Does Not Defend AP-Manager IP Address









Troubleshoot


a


Lightweight


Access


Point


Not


Joining


a Wireless LAN Controller



Cisco Support Community - Featured Conversations



Related Information



Introduction


This document provides a basic configuration example of a lightweight


access point (AP) that is connected to a Cisco Wireless LAN (WLAN)


Controller (WLC) through a Cisco Catalyst Switch.


Prerequisites


Requirements


Ensure that you meet these requirements before you attempt this


configuration:


Basic knowledge of the configuration of lightweight APs and Cisco


WLCs


?



Basic knowledge of Lightweight AP Protocol (LWAPP)


?



Knowledge of the configuration of an external DHCP server and/or


domain name server (DNS)


?



Basic configuration knowledge of Cisco switches


?



Components Used


The


information


in


this


document


is


based


on


these


software


and


hardware


versions:


Cisco Aironet 1232AG Series Lightweight AP


?



Cisco 4402 Series WLC that runs firmware 5.2.178.0


?



Microsoft Windows Server 2003 Enterprise DHCP server


?



This


configuration


works


with


any


other


Cisco


WLC


and


any


lightweight


AP.


The


information


in


this


document


was


created


from


the


devices


in


a


specific


lab environment. All of the devices used in this document started with


a


cleared


(default)


configuration.


If


your


network


is


live,


make


sure


that


you understand the potential impact of any command.


Conventions


Refer to the


Cisco Technical Tips Conventions


for more information on


document conventions.


Background Information


In


order


for


the


WLC


to


be


able


to


manage


the


LAP,


the


LAP


should


discover


the


controller


and


register


with


the


WLC.


There


are


different


methods


that


an


LAP


uses


in


order


to


discover


the


WLC.


For


detailed


information


on


the


different methods the LAPs use to register to the WLCs, refer to


Lightweight AP (LAP) Registration to a Wireless LAN Controller (WLC)



This document describes the configuration steps needed to register the


LAP to the WLC and for basic operation of the LWAPP wireless network.


Configure


In order to register the LAP to the WLC and for basic operation of the


LWAPP wireless network, complete these steps:


1.



Have a DHCP server present so that the APs can acquire a network


address.


Note:


Option 43 is used if the APs reside in a different subnet.


2.



Configure the WLC for basic operation


.


3.



Configure the switch for the WLC


.


4.



Configure the switch for the APs


.


5.



Register the lightweight APs to the WLCs.


Note:


Use the


Command Lookup Tool


(


registered


customers only) in order


to obtain more information on the commands used in this section.


Network Diagram


This document uses this network setup:



Configure the WLC for Basic Operation


When


the


controller


boots


at


factory


defaults,


the


bootup


script


runs


the


configuration wizard, which prompts the installer for initial


configuration settings. This procedure describes how to use the


configuration


wizard


on


the


command- line


interface


(CLI)


in


order


to


enter


initial configuration settings.


Note:


Be sure that you understand how to configure an external DHCP


server and/or DNS.


Complete these steps in order to configure the WLC for basic


operation:


1.



Connect


your


computer


to


the


WLC


with


a


DB-9


null


modem


serial


cable.


2.



Open a terminal emulator session with these settings:


o



9600 baud


8 data bits


o



1 stop bit


o



No parity


o



No hardware flow control


3.



At the prompt, log in to the CLI.


o



The default username is


admin


, and the default password is


admin


.


4.



If necessary, enter


reset system


in order to reboot the unit and


start the wizard.


5.



At the first wizard prompt, enter a system name. The system name


can include up to 32 printable ASCII characters.


6.



Enter an administrator user name and password. The user name and


password can include up to 24 printable ASCII characters.


7.



Enter


the


service-port


interface


IP


configuration


protocol,


either


none


or


DHCP


.


Enter


none



if


you


do


not


want


to


use


the


service


port


or


if


you


want


to assign a static IP address to the service port.


8.



If


you


entered


none


in


step


7


and


need


to


enter


a


static


IP


address


for the service port, enter the service-port interface IP address


and netmask for the next two prompts.


If you do not want to use the service port, enter


0.0.0.0


for the


IP address and netmask.


9.



Enter values for these options:


o



Management interface IP address


o



Netmask


o



Default router IP address


o



Optional VLAN identifier


You can use a valid VLAN identifier or 0 for untagged.


10.


Note:


When the management interface on the controller is


configured


as


part


of


the


'native


vlan'


on


the


switchport


to


which


it connects, the controller should


NOT


tag the frames. Therefore,


you must set the VLAN to be zero (on the controller).


the Network Interface (Distribution System) Physical Port


number.


For the WLC, the possible ports are 1 through 4 for a front-panel


gigabit Ethernet port.


the IP address of the default DHCP server that supplies IP


addresses to clients, the management interface, and the


service-port interface, if you use one.


the LWAPP Transport Mode, either


LAYER2


or


LAYER3


.


Note:


If you configure the WLC 4402 via Wizard and select AP


transport Mode


LAYER2


, the Wizard does not ask the details of AP


Manager.


the Virtual Gateway IP Address.


This


address


can


be


any


fictitious,


unassigned


IP


address,


such


as


1.1.1.1, for the Layer 3 Security and Mobility managers to use.


Note:


Usually the Virtual Gateway IP Address that is used is a


private address.


the Cisco WLAN Solution Mobility Group/RF Group name.


the WLAN 1 service set identifier (SSID) or network name.


This identifier is the default SSID that lightweight APs use in


order to associate to a WLC.


or disallow Static IP Addresses for clients.


Enter


yes



in


order


to


allow


clients


to


supply


their


own


IP


addresses.


Enter


no


in


order to require clients


to request an


IP address from


a DHCP server.


you need to configure a RADIUS server on the WLC, enter


yes



and


enter this information:


o



RADIUS server IP address


o



The communication port


o



The shared secret


If you do not need to configure a RADIUS server or you want to


configure the server later, enter


no


.


a country code for the unit.


Enter


help


in order to see a list of the supported countries.



and


disable


support


for


IEEE


802.11b,


IEEE


802.11a,


and


IEEE


802.11g.


or disable radio resource management (RRM) (auto RF).


WLC 4402



Configuration Wizard


Welcome to the Cisco Wizard Configuration


Tool


Use the '-' character to backup


System Name [Cisco_43:eb:22]:


c4402



Enter Administrative User Name (24


characters max):


admin



Enter Administrative Password (24


characters max):


*****



Service Interface IP Address


Configuration


[none][DHCP]:


none



Enable


Link


Aggregation


(LAG)


[yes][NO]:


No


Management Interface IP Address:


192.168.60.2



Management Interface Netmask:


255.255.255.0


Management Interface Default Router:


192.168.60.1



Management Interface VLAN Identifier (0 =


untagged):


60



Management Interface Port Num [1 to 2]:


1



Management Interface DHCP Server IP


Address:


192.168.60.25



AP Transport Mode [layer2][LAYER3]:


LAYER3


AP Manager Interface IP Address:


192.168.60.3



AP- Manager is on Management subnet, using


same values


AP Manager Interface DHCP Server


(192.168.50.3): 192.168.60.25


Virtual Gateway IP Address:


1.1.1.1



Mobility/RF Group Name:


RFgroupname



Network Name (SSID):


SSID



Allow Static IP Addresses [YES][no]:


yes



Configure


a


RADIUS


Server


now?


[YES][no]:


no



Enter


Country


Code


(enter


'help'


for


a


list


of countries) [US]:


US



Enable 802.11b Network [YES][no]:


yes



Enable 802.11a Network [YES][no]:


yes



Enable 802.11g Network [YES][no]:


yes



Enable Auto- RF [YES][no]:


yes



Note:


The management interface on the WLC is the only consistently


pingable


interface


from


outside


of


the


WLC.


So


it


is


an


expected


behavior


if you are not able to ping the AP manager interface from outside of the


WLC.


Note:


You must configure the AP manager interface in order for the APs


to associate with the WLC.


Configure the Switch for the WLC


This example uses a Catalyst 3750 switch that uses only one port. The


example tags the AP-manager and management interfaces and places these


interfaces on VLAN 60. The switch port is configured as an IEEE 802.1Q


trunk and only the appropriate VLANs, which are VLANs 2 through 4 and 60


in


this


case,


are


allowed


on


the


trunk.


The


management


and


AP-manager


VLAN


(VLAN


60)


is


tagged


and


is


not


configured


as


the


native


VLAN


of


the


trunk.


So


when


the


example


configures


those


interfaces


on


the


WLC,


the


interfaces


are assigned a VLAN identifier.


This is an example 802.1Q switch port configuration:


interface GigabitEthernet1/0/1


description Trunk Port to Cisco WLC


switchport trunk encapsulation dot1q


switchport trunk allowed vlan 2-4,60


switchport mode trunk



no shutdown


Note:


When you connect the WLC gigabit port, make sure it is connected


to the switch gigabit


port only. If


you connect the


WLC gigabit Ethernet


to the Switch FastEthernet port then it will not work.


Notice that this configuration example configures the neighbor switch


port in a way that only allows relevant VLANs on the 802.1Q trunk. All


other


VLANs


are


pruned.


This


type


of


configuration


is


not


necessary,


but


it is a deployment best practice. When you prune irrelevant VLANs, the


WLC only processes relevant frames, which optimizes performance.


Configure the Switch for the APs


This is an example VLAN interface configuration from the Catalyst 3750:


interface VLAN5

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