Cisco Wireless LAN - Access Points - Mod 5

8/8/2019 Cisco Wireless LAN - Access Points - Mod 5

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Ch. 5 Access Points

Cisco Fundamentals of Wireless LANs version 1.1

Rick Graziani

Cabrillo College


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Overview

Rick Graziani graziani@cabrillo.edu 2


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Access Point Connection


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Introduction



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Radio Upgrade


802.11g chip nowshipping


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Cable and

Power


Cisco Aironet 1100 and 1200 Series, can be powered over Ethernet

with: Switch with inline power (Option 1)

Inline power patch panel (Option 2)

Optional inline power injector (Option3)

Universal power supply (Option 4)


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Cable and Power


WARNINGNever connect both the DC power to the APpower port and inline power simultaneously


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AP Installation


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LED indicators

1100 AP 1200 AP


The LED lights on an access point convey status information. When the access point is powering on, all three LEDs normally blink. After bootup, the colors of the LEDs represent the following:

Green LEDs indicate normal activity.

Amber LEDs indicate errors or warnings.

Red LEDs mean the unit is not operating correctly or is beingupgraded.


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Reset the AP (Power On)

1100 AP 1200 AP


, ,

you will reset the AP. Follow these steps to reset the access point to factory default

settings using the access point MODE button:

Step 1 Disconnect power (the power jack for external power or theEthernet cable for in-line power) from the access point.

Step 2 Press and hold the MODE button while power to the accesspoint is reconnected.

Step 3 Hold the MODE button until the Status LED turns amber(approximately 1 to 2 seconds), and release the button. All access

point settings return to factory defaults.


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Reset the AP (Power On)

350 AP


The Reset button on the 340 and 350 AP is in a small hole on the backpanel of the base station.

To activate the Reset button, insert a straightened paper clip into thesmall hole and press.

Remove the paper clip. The Status LED blinks amber to show the base station has the

default parameter values.


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Connecting to the AP (Configuration)


Wired Wireless: Requires Association


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Connecting to the AP (Configuration)

) ) ) ) )10.0.0.101/24

10.0.0.1/2410.0.0.102/24


Console: 9600-8-N-1-NoneOR

Ethernet or Wireless adapter: Unless routed, be sure it is on the IP addresses are same subnet.


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Connecting to the AP(Console)

ConsoleSerial

Rollover Cable


There are two different types of CLI: IOS CLI

VxMenu

VxMenuIOS CLI


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Connecting to the AP(Telnet)

Cisco


Requires a network connection either Ethernet or Wireless

AP Defaults IP Address = 10.0.0.1/24

Username and Password =

Cisco (C not c) This password is the

privilege password, not theWEP password.


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Connecting to the AP (Browser)

Wired Wireless: Requires AssociationPreferred Method!



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Connecting to the AP (Wireless)

SSID = tsunamiSSID = tsunami


Wireless adapter: If configuring using the wireless adapter, you must first associate

with the AP.

Make sure the settings on the ACU match the AP. Cisco 1100 and 1200 Aps have the following defaults:

IP Address = 10.0.0.1 255.255.255.224

SSID = tsunami

Password = Cisco (C not c)


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Connecting to the AP (Wired)

Preferred Method!


/27


Wired Ethernet: No association necessary

Make sure the IP Address on the Ethernet interface is on the samesubnet as the AP.

AP Defaults

IP Address = 10.0.0.1 255.255.255.224

Password = Cisco (C not c)


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Connecting to the AP (Wired)

Preferred Method!


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Wired Ethernet: We will use the browser via wired method to initially configure

APs during labs so we do not configure the wrong AP via wireless.

VxMenu

IOS CLI


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Labs and Station Connectivity

AP1Hey, whathappened to my

settings on AP2!

ConfiguringAP1 is easy!

10.0.0.1


In the lab we will need to take steps to make sure you are configuringand connected to the AP that you think you are!

We will first connect via a wired interface, change the SSID and IP

addressing on the AP, different from what the labs show.

AP2

10.0.0.1


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Configuring IP Addresses


Wired Wireless


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Configuring IP Addresses

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Configuring the IP address on Hosts Ethernet interface

Note: /24 will work because the host still believes it is on

the same subnet as the AP (and visa versa)


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Access the AP via the Browser

10.0.0.1

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Cisco


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Two things to change

Ex: 192.168.1.1/24 Ex: 192.168.1.2/27SSID: AP-Pod1

HostnameNot SSID

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At the beginning of each lab, after you have connected via the wired Ethernetinterface, you will change the IP Address and SSID on the AP, so the otherLab Station does not accidentally configure yours.

You will also need to change your Hosts IP address.


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Cisco AP Factory Default Settings

255.255.255.224 (/27)



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Basic Configuration

The labs will reall hel ou understand this.


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Configure IP address and SSID with IPSU


IP Setup Utility (IPSU) can only change the IP address and SSID of theaccess point from their default settings .

After the IP address and SSID have been changed, IPSU cannot changethem again unless the mode button is held down.

Use a computer on the wired LAN to communicate with the AP through a hubon the wired LAN.

The IPSU must be installed on the computer as well as on the same subnetas the AP.

IPSU uses IP multicast to communicate with the AP

We will not use IPSU.

See 5.2.1 if you are interested.


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Navigating the GUI



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Home Summary Page (IOS)

MAC addressesreturned when pinging

the AP from wired orwireless client.


BSSID

Rec. Trans. SA/DA/BSSID


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Express Setup


ways con gureand test thebasics first, beforeconfiguring

authentication andother options.


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VxWorks



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Using the CLI


Almost exactly thesame as using theRouter IOS.


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The APs IP address


Same IP address whether you are connecting via the wiredor wireless interface. (For configuring the AP.)


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Association

or


Click here


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Association -> MAC Address



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Association (VxWorks)



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ACU - Verifying


Right click


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Show Connection Status



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Link Test


S


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Link Status


N k I f


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Network Interfaces


Only part of the screen shown.

N t k I t f


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Network Interfaces


N t k I t f F t Eth t


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Network Interfaces Fast Ethernet

Rick Graziani graziani@cabrillo.edu 44Only part of the screen shown.

Network Interfaces Radio 802 11B


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Network Interfaces Radio-802.11B





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(Settings)




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(Settings)




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(Settings)




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(Settings)


PLCPframe!



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(Settings)




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(Settings)




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(Settings)




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(Settings)


Network Interfaces Radio-802.11A(S tti )


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(Settings)

802.11acontainssome slightly

differentoptions

Rick Graziani graziani@cabrillo.edu 56Only part of the screen shown.


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Services

Services


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The Services Summary page shows whether all of themain services are currently enabled or disabled.

Telnet/SSH


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Hot Standby


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We will not be configuringHot Standby

CDP


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DNS


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Filters


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Allows you to accept/deny specific MAC or IP addresses.

HTTP


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This feature enables Web-based GUI management by providing support forHTML Web pages and Common Gateway Interface (CGI) scripts usingcommon Web browsers.

The Services>Web Server page is used to enable browsing to the web-basedmanagement system, specify the location of the Help files, and entersettings for a custom-tailored web system for management.

With the Allow Web-based Configuration Management enabled, access to theGUI management system is permitted.

If HTTP is disabled, the management system is accessible only through Telnetor the console

HTTP Help Files


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Hard Drive - The help files can be copied to the hard drive of thecomputer which is used to manage the wireless LAN. Go tohttp://www.cisco.com/public/sw-center/sw-wireless.shtml to downloadthe help files for the particular release. The readme.txt file explains

how to download the help files to the hard drive. This URL starting withfile:// may not be accessible if the security settings of the browser arenot set appropriately. Example:

file://[Drive letter]:\[folder or subdirectory]\wireless\help

Proxy Mobile IP


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Allows Layer 3 Roaming More later.

QoS Not Covered


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QoS is disabled by default. The most important guideline in QoS deployment is to be familiar with

the traffic on the wireless LAN.

It is important to know the applications used by wireless client devices,the delay sensitivity of the applications, and the amount of trafficassociated with the applications.

QoS does not create additional bandwidth for the wireless LAN. Rather it helps control the allocation of bandwidth. If there is adequate

bandwidth on the WLAN, QoS may not be needed.

SNMP Not covered


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NTP


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Wireless Services


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Ch. 5 Access Points

Cisco Fundamentals of Wireless LANs version 1.1

Rick GrazianiCabrillo College

Cisco Wireless LAN - Access Points - Mod 5

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