Cisco M10-RM Quick start guide

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Cisco IOS Software Configuration Guide
for Cisco Aironet Access Points
Cisco IOS Releases 12.4(10b)JA and 12.3(8)JEC
May 2010
Text Part Number: OL-14209-01

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Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
Copyright © 2010 Cisco Systems, Inc. All rights reserved.

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CONTENTS
Preface xix
Audience 1-xix
Purpose 1-xix
Organization 1-xx
Conventions 1-xxi
Related Publications 1-xxiii
Obtaining Documentation, Obtaining Support, and Security Guidelines 1-xxiv
Overview 1-1
Features 1-2
Features Introduced in This Release 1-2
Management Options 1-2
Roaming Client Devices 1-3
Network Configuration Examples 1-3
Root Access Point 1-3
Repeater Access Point 1-4
Bridges 1-5
Workgroup Bridge 1-5
Central Unit in an All-Wireless Network 1-6
Using the Web-Browser Interface 2-1
Using the Web-Browser Interface for the First Time 2-3
Using the Management Pages in the Web-Browser Interface 2-3
Using Action Buttons 2-4
Character Restrictions in Entry Fields 2-5
Enabling HTTPS for Secure Browsing 2-5
CLI Configuration Example 2-13
Deleting an HTTPS Certificate 2-13
Using Online Help 2-14
Changing the Location of Help Files 2-14
Disabling the Web-Browser Interface 2-15

Contents
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Using the Command-Line Interface 3-1
Cisco IOS Command Modes 3-2
Getting Help 3-3
Abbreviating Commands 3-3
Using no and default Forms of Commands 3-4
Understanding CLI Messages 3-4
Using Command History 3-4
Changing the Command History Buffer Size 3-5
Recalling Commands 3-5
Disabling the Command History Feature 3-5
Using Editing Features 3-6
Enabling and Disabling Editing Features 3-6
Editing Commands Through Keystrokes 3-6
Editing Command Lines that Wrap 3-7
Searching and Filtering Output of show and more Commands 3-8
Accessing the CLI 3-9
Opening the CLI with Telnet 3-9
Opening the CLI with Secure Shell 3-9
Configuring the Access Point for the First Time 4-1
Before You Start 4-2
Resetting the Device to Default Settings 4-2
Resetting to Default Settings Using the MODE Button 4-2
Resetting to Default Settings Using the GUI 4-2
Resetting to Default Settings Using the CLI 4-3
Obtaining and Assigning an IP Address 4-4
Default IP Address Behavior 4-4
Connecting to the 1100 Series Access Point Locally 4-5
Connecting to the 1130 Series Access Point Locally 4-6
Connecting to the 1200, 1230, 1240, and 1250 Series Access Points Locally 4-6
Connecting to the 1300 Series Access Point/Bridge Locally 4-7
Default Radio Settings 4-7
Assigning Basic Settings 4-8
Default Settings on the Express Setup Page 4-14
Configuring Basic Security Settings 4-16

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Understanding Express Security Settings 4-18
Using VLANs 4-18
Express Security Types 4-19
Express Security Limitations 4-21
Using the Express Security Page 4-21
CLI Configuration Examples 4-22
Configuring System Power Settings for 1130 and 1240 Series Access Points 4-27
Assigning an IP Address Using the CLI 4-28
Using a Telnet Session to Access the CLI 4-28
Configuring the 802.1X Supplicant 4-29
Creating a Credentials Profile 4-29
Applying the Credentials to an Interface or SSID 4-30
Applying the Credentials Profile to the Wired Port 4-30
Applying the Credentials Profile to an SSID Used For the Uplink 4-31
Creating and Applying EAP Method Profiles 4-32
Administering the Access PointWireless Device Access 5-1
Disabling the Mode Button 5-2
Preventing Unauthorized Access to Your Access Point 5-3
Protecting Access to Privileged EXEC Commands 5-3
Default Password and Privilege Level Configuration 5-4
Setting or Changing a Static Enable Password 5-4
Protecting Enable and Enable Secret Passwords with Encryption 5-6
Configuring Username and Password Pairs 5-7
Configuring Multiple Privilege Levels 5-8
Setting the Privilege Level for a Command 5-8
Logging Into and Exiting a Privilege Level 5-9
Controlling Access Point Access with RADIUS 5-9
Default RADIUS Configuration 5-10
Configuring RADIUS Login Authentication 5-10
Defining AAA Server Groups 5-12
Configuring RADIUS Authorization for User Privileged Access and
Network Services 5-14
Displaying the RADIUS Configuration 5-15
Controlling Access Point Access with TACACS+ 5-15
Default TACACS+ Configuration 5-15

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Configuring TACACS+ Login Authentication 5-15
Configuring TACACS+ Authorization for Privileged EXEC Access and Network Services 5-17
Displaying the TACACS+ Configuration 5-17
Configuring Ethernet Speed and Duplex Settings 5-18
Configuring the Access Point for Wireless Network Management 5-18
Configuring the Access Point for Local Authentication and Authorization 5-19
Configuring the Authentication Cache and Profile 5-20
Configuring the Access Point to Provide DHCP Service 5-22
Setting up the DHCP Server 5-22
Monitoring and Maintaining the DHCP Server Access Point 5-24
Show Commands 5-24
Clear Commands 5-25
Debug Command 5-25
Configuring the Access Point for Secure Shell 5-25
Understanding SSH 5-25
Configuring SSH 5-26
Configuring Client ARP Caching 5-26
Understanding Client ARP Caching 5-26
Optional ARP Caching 5-26
Configuring ARP Caching 5-27
Managing the System Time and Date 5-27
Understanding Simple Network Time Protocol 5-27
Configuring SNTP 5-28
Configuring Time and Date Manually 5-28
Setting the System Clock 5-28
Displaying the Time and Date Configuration 5-29
Configuring the Time Zone 5-29
Configuring Summer Time (Daylight Saving Time) 5-30
Defining HTTP Access 5-32
Configuring a System Name and Prompt 5-32
Default System Name and Prompt Configuration 5-32
Configuring a System Name 5-32
Understanding DNS 5-33
Default DNS Configuration 5-33
Setting Up DNS 5-34
Displaying the DNS Configuration 5-35
Creating a Banner 5-35

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Default Banner Configuration 5-35
Configuring a Message-of-the-Day Login Banner 5-35
Configuring a Login Banner 5-37
Upgrading Autonomous Cisco Aironet Access Points to Lightweight Mode 5-37
Migrating to Japan W52 Domain 5-37
Verifying the Migration 5-39
Configuring Multiple VLAN and Rate Limiting for Point-to-Multipoint Bridging 5-39
CLI Command 5-40
Configuring Radio Settings 6-1
Enabling the Radio Interface 6-2
Configuring the Role in Radio Network 6-2
Universal Workgroup Bridge Mode 6-5
Configuring Dual-Radio Fallback 6-5
Radio Tracking 6-6
Fast Ethernet Tracking 6-6
MAC-Address Tracking 6-6
Bridge Features Not Supported 6-7
Configuring Radio Data Rates 6-7
Access Points Send Multicast and Management Frames at Highest Basic Rate 6-8
Configuring MCS Rates 6-10
Configuring Radio Transmit Power 6-11
Limiting the Power Level for Associated Client Devices 6-13
Configuring Radio Channel Settings 6-14
802.11n Channel Widths 6-15
Dynamic Frequency Selection 6-16
CLI Commands 6-18
Confirming that DFS is Enabled 6-18
Configuring a Channel 6-19
Blocking Channels from DFS Selection 6-19
Setting the 802.11n Guard Interval 6-20
Configuring Location-Based Services 6-21
Understanding Location-Based Services 6-21
Configuring LBS on Access Points 6-21
Enabling and Disabling World Mode 6-22

Contents
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Disabling and Enabling Short Radio Preambles 6-23
Configuring Transmit and Receive Antennas 6-24
Enabling and Disabling Gratuitous Probe Response 6-25
Disabling and Enabling Aironet Extensions 6-26
Configuring the Ethernet Encapsulation Transformation Method 6-27
Enabling and Disabling Reliable Multicast to Workgroup Bridges 6-28
Enabling and Disabling Public Secure Packet Forwarding 6-29
Configuring Protected Ports 6-30
Configuring the Beacon Period and the DTIM 6-30
Configure RTS Threshold and Retries 6-31
Configuring the Maximum Data Retries 6-32
Configuring the Fragmentation Threshold 6-32
Enabling Short Slot Time for 802.11g Radios 6-33
Performing a Carrier Busy Test 6-33
Configuring VoIP Packet Handling 6-33
Viewing VoWLAN Metrics 6-34
Viewing Voice Reports 6-34
Viewing Wireless Client Reports 6-37
Viewing Voice Fault Summary 6-38
Configuring Voice QoS Settings 6-38
Configuring Voice Fault Settings 6-39
Configuring Multiple SSIDs 7-1
Understanding Multiple SSIDs 7-2
Effect of Software Versions on SSIDs 7-2
Configuring Multiple SSIDs 7-4
Default SSID Configuration 7-4
Creating an SSID Globally 7-4
Viewing SSIDs Configured Globally 7-6
Using Spaces in SSIDs 7-6
Using a RADIUS Server to Restrict SSIDs 7-7
Configuring Multiple Basic SSIDs 7-8
Requirements for Configuring Multiple BSSIDs 7-8
Guidelines for Using Multiple BSSIDs 7-8
Configuring Multiple BSSIDs 7-8
CLI Configuration Example 7-10

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Displaying Configured BSSIDs 7-10
Assigning IP Redirection for an SSID 7-11
Guidelines for Using IP Redirection 7-12
Configuring IP Redirection 7-12
Including an SSID in an SSIDL IE 7-13
NAC Support for MBSSID 7-13
Configuring NAC for MBSSID 7-16
Configuring Spanning Tree Protocol 8-1
Understanding Spanning Tree Protocol 8-2
STP Overview 8-2
1300 and 350 Series Bridge Interoperability 8-3
Access Point/Bridge Protocol Data Units 8-3
Election of the Spanning-Tree Root 8-4
Spanning-Tree Timers 8-5
Creating the Spanning-Tree Topology 8-5
Spanning-Tree Interface States 8-5
Blocking State 8-7
Listening State 8-7
Learning State 8-7
Forwarding State 8-8
Disabled State 8-8
Configuring STP Features 8-8
Default STP Configuration 8-8
Configuring STP Settings 8-9
STP Configuration Examples 8-10
Root Bridge Without VLANs 8-10
Non-Root Bridge Without VLANs 8-11
Root Bridge with VLANs 8-11
Non-Root Bridge with VLANs 8-13
Displaying Spanning-Tree Status 8-14
Configuring an Access Point as a Local Authenticator 9-1
Understanding Local Authentication 9-2
Configuring a Local Authenticator 9-2
Guidelines for Local Authenticators 9-3
Configuration Overview 9-3

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Configuring the Local Authenticator Access Point 9-3
Configuring Other Access Points to Use the Local Authenticator 9-6
Configuring EAP-FAST Settings 9-7
Configuring PAC Settings 9-7
Configuring an Authority ID 9-8
Configuring Server Keys 9-8
Possible PAC Failures Caused by Access Point Clock 9-8
Limiting the Local Authenticator to One Authentication Type 9-9
Unblocking Locked Usernames 9-9
Viewing Local Authenticator Statistics 9-9
Using Debug Messages 9-11
Configuring Cipher Suites and WEP 10-1
Understanding Cipher Suites and WEP 10-2
Configuring Cipher Suites and WEP 10-3
Creating WEP Keys 10-3
WEP Key Restrictions 10-5
Example WEP Key Setup 10-5
Enabling Cipher Suites and WEP 10-6
Matching Cipher Suites with WPA and CCKM 10-7
Enabling and Disabling Broadcast Key Rotation 10-7
Configuring Authentication Types 11-1
Understanding Authentication Types 11-2
Open Authentication to the Access Point 11-2
Shared Key Authentication to the Access Point 11-3
EAP Authentication to the Network 11-4
MAC Address Authentication to the Network 11-5
Combining MAC-Based, EAP, and Open Authentication 11-6
Using CCKM for Authenticated Clients 11-6
Using WPA Key Management 11-7
Software and Firmware Requirements for WPA, CCKM, CKIP, and WPA-TKIP 11-8
Configuring Authentication Types 11-10
Assigning Authentication Types to an SSID 11-10
Configuring WPA Migration Mode 11-13
Configuring Additional WPA Settings 11-14
Configuring MAC Authentication Caching 11-15
Configuring Authentication Holdoffs, Timeouts, and Intervals 11-16
Creating and Applying EAP Method Profiles for the 802.1X Supplicant 11-17