Cisco IOS Software Configuration Guide for Cisco Aironet Access ...

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Configuring VLANs Chapter 14 Configuring VLANs Creating a VLAN Name Beginning in privileged EXEC mode, follow these steps to assign a name to a VLAN: Command Purpose Step 1 configure terminal Enter global configuration mode. Step 2 dot11 vlan-name name vlan vlan-id Assign a VLAN name to a VLAN ID. The name can contain up to 32 ASCII characters. Step 3 end Return to privileged EXEC mode. Step 4 copy running-config startup-config (Optional) Save your entries in the configuration file. Use the no form of the command to remove the name from the VLAN. Use the show dot11 vlan-name privileged EXEC command to list all the VLAN name and ID pairs configured on the access point. Using a RADIUS Server to Assign Users to VLANs You can configure your RADIUS authentication server to assign users or groups of users to a specific VLAN when they authenticate to the network. Note Unicast and multicast cipher suites advertised in WPA information element (and negotiated during 802.11 association) may potentially mismatch with the cipher suite supported in an explicitly assigned VLAN. If the RADIUS server assigns a new vlan ID which uses a different cipher suite from the previously negotiated cipher suite, there is no way for the access point and client to switch back to the new cipher suite. Currently, the WPA and CCKM protocols do not allow the cipher suite to be changed after the initial 802.11 cipher negotiation phase. In this scenario, the client device is disassociated from the wireless LAN. The VLAN-mapping process consists of these steps: 1. A client device associates to the access point using any SSID configured on the access point. 2. The client begins RADIUS authentication. 3. When the client authenticates successfully, the RADIUS server maps the client to a specific VLAN, regardless of the VLAN mapping defined for the SSID the client is using on the access point. If the server does not return any VLAN attribute for the client, the client is assigned to the VLAN specified by the SSID mapped locally on the access point. These are the RADIUS user attributes used for vlan-id assignment. Each attribute must have a common tag value between 1 and 31 to identify the grouped relationship. • IETF 64 (Tunnel Type): Set this attribute to VLAN • IETF 65 (Tunnel Medium Type): Set this attribute to 802 • IETF 81 (Tunnel Private Group ID): Set this attribute to vlan-id 14-8 Cisco IOS Software Configuration Guide for Cisco Aironet Access Points OL-8191-01
Chapter 14 Configuring VLANs Configuring VLANs Using a RADIUS Server for Dynamic Mobility Group Assignment You can configure a RADIUS server to dynamically assign mobility groups to users or user groups. This eliminates the need to configure multiple SSIDs on the access point. Instead, you need to configure only one SSID per access point. When users associate to the SSID, the access point passes their login information to WLSM, which passes the information to the RADIUS server. Based on the login information, the RADIUS server assigns the users to the appropriate mobility group and sends their credentials back. To enable dynamic mobility group assignment, you need to configure the following attributes on the RADIUS server: • Tunnel-Type (64) • Tunnel-Medium-Type(65) • Tunnel-Private-Group-ID (81) Figure 14-2 Dynamic Mobility Group Assignment Viewing VLANs Configured on the Access Point In privileged EXEC mode, use the show vlan command to view the VLANs that the access point supports. This is sample output from a show vlan command: Virtual LAN ID: 1 (IEEE 802.1Q Encapsulation) vLAN Trunk Interfaces: Dot11Radio0 FastEthernet0 Virtual-Dot11Radio0 This is configured as native Vlan for the following interface(s) : Dot11Radio0 FastEthernet0 OL-8191-01 Cisco IOS Software Configuration Guide for Cisco Aironet Access Points 14-9
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Cisco IOS Software Configuration Gu
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CONTENTS Preface xix Audience xix P
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Contents Opening the CLI with Secur
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Contents Optional ARP Caching 5-26
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Contents Guidelines for Using Multi
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Contents Applying an EAP Profile to
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Contents Assigning Names to VLANs 1
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Contents Verifying Repeater Operati
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Contents Displaying the Logging Con
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Preface Audience This guide is for
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Preface Conventions Appendix B, “
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Preface Related Publications ¡Adve
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Preface Documentation Feedback Cisc
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Preface Obtaining Technical Assista
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CHAPTER 1 Overview Cisco Aironet Ac
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Chapter 1 Overview Features WLSM Su
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Chapter 1 Overview Features VoWLAN
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Chapter 1 Overview Features • Wi-
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Chapter 1 Overview Management Optio
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Chapter 1 Overview Network Configur
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Chapter 1 Overview Network Configur
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CHAPTER 2 Using the Web-Browser Int
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Chapter 2 Using the Web-Browser Int
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CHAPTER 3 Using the Command-Line In
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Chapter 3 Using the Command-Line In
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CHAPTER 4 Configuring the Access Po
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Chapter 4 Configuring the Access Po
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CHAPTER 5 Administering the Access
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Chapter 5 Administering the Access
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CHAPTER 6 Configuring Radio Setting
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Chapter 6 Configuring Radio Setting
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CHAPTER 7 Configuring Multiple SSID
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Chapter 7 Configuring Multiple SSID
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CHAPTER 8 Configuring Spanning Tree
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Chapter 8 Configuring Spanning Tree
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CHAPTER 9 Configuring an Access Poi
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Chapter 9 Configuring an Access Poi
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CHAPTER 10 Configuring Cipher Suite
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Chapter 10 Configuring Cipher Suite
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CHAPTER 11 Configuring Authenticati
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Chapter 11 Configuring Authenticati
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CHAPTER 12 Configuring WDS, Fast Se
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Chapter 12 Configuring WDS, Fast Se
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Page 329 and 330: CHAPTER 16 Configuring Filters This
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Chapter 18 Configuring SNMP Configu
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CHAPTER 19 Configuring Repeater and
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Chapter 19 Configuring Repeater and
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SP ED LED 1 5 2 6 3 7 4 8 1X 2X ETH
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20 CHAPTER Managing Firmware and Co
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Chapter 20 Managing Firmware and Co
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21 CHAPTER Configuring System Messa
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Chapter 21 Configuring System Messa
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22 CHAPTER Troubleshooting This cha
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Chapter 22 Troubleshooting Checking
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Chapter 22 Troubleshooting Resettin
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Chapter 22 Troubleshooting Reloadin
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APPENDIX A Protocol Filters The tab
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Appendix A Protocol Filters Table A
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Appendix A Protocol Filters Table A
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APPENDIX B Supported MIBs This appe
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APPENDIX C Error and Event Messages
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Appendix C Error and Event Messages
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GLOSSARY 802.11 The IEEE standard t
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Glossary dipole domain name DNS DSS
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Glossary roaming RP-TNC A feature o
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INDEX Numerics 1130AG series indica
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Index Telnet 4-9 terminal emulator
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Index reasons for 20-18 using FTP 2
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Index IP redirection 7-11, 7-12 IPS
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Index protected ports 6-25 protocol
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Index server groups 18-7 shutdown m
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Index tftp_init command 22-21 TFTP
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