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Cisco Systems OL-6415-04 manual Configuring Multiple SSIDs

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C H A P T E R 3

Configuring Multiple SSIDs

This chapter describes how to configure and manage multiple service set identifiers (SSIDs) on the access point. This chapter contains the following sections:

•Understanding Multiple SSIDs, page 3-2

•Configuring Multiple SSIDs, page 3-3

•Configuring Multiple Basic SSIDs, page 3-6

•Enabling MBSSID and SSIDL at the same time, page 3-7

Cisco Wireless ISR and HWIC Access Point Configuration Guide

	OL-6415-04	3-1

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Cisco Systems OL-6415-04 manual Configuring Multiple SSIDs

Contents

Text Part Number 0L-6415-04 Corporate HeadquartersPage N T E N T S Ssid Configuration Methods Supported by Cisco IOS Releases Creating Cipher Suites Protocol Filters Local Authenticator Messages Contents Cisco Wireless Router and Hwic Configuration Guide Preface provides information on the following topics PrefaceAudience PurposeConventions OrganizationPreface Conventions Cisco Product Document Title Related PublicationsCisco.com Obtaining DocumentationProduct Documentation DVD Documentation FeedbackOrdering Documentation Cisco Product Security Overview Reporting Security Problems in Cisco ProductsObtaining Technical Assistance Submitting a Service RequestCisco Technical Support & Documentation Website Obtaining Additional Publications and Information Definitions of Service Request SeverityPreface Obtaining Additional Publications and Information Overview Wireless Device ManagementRoot Unit on a Wired LAN Network Configuration ExampleFeatures Overview Features Overview Overview Cisco Wireless Router and Hwic Configuration Guide Configuring Radio Settings Cisco Role in Radio Network Eries ISRs Command PurposeEnabling the Radio Interface Roles in Radio NetworkConfiguring Network or Fallback Role Sample Bridging Configuration Bridge Features Not SupportedFollowing is a sample of a Root Bridge Configuration Following is a sample of Non-Root Bridge Configuration Interface Dot11Radio0/1/0 no ip address Configuring Universal Client Mode Universal Client ModeNAT Network Address Translation Following configuration is supported on NATVirtual interface to aid NAT translation No service password-encryption Hostname C1803WUC Configuring Radio Settings Configuring Radio Data Rates Configuring Radio Data Rates2.0 5.5 6.0 9.0 Throughput ofdm defaultSpeed 11.0 2.0 5.5 basic-1.0100 125 150 200 250 Configuring Radio Transmit PowerEnd Return to privileged Exec mode DBmMaximum Limiting the Power Level for Associated Client DevicesPower local 5 6 7 10 13 15 1710 20 30 50 Maximum Configuring Radio Channel SettingsPower client 20 30 50 100 maximumRegulatory Domains 2412 2417 2422 2427 2432 2437 2442 2447 2452 2457 2462 2467 CenterChannel Identifier MHz2472 2484 Channel GHz Channels on Which DFS is Automatically Enabled DFS Automatically Enabled on Some 5-GHz Radio ChannelsBlocking Channels from DFS Selection Enabling and Disabling World ModeConfirming that DFS is Enabled This example shows how to unblock all frequencies for DFSEnabling and Disabling Short Radio Preambles Antenna transmit Configuring Transmit and Receive AntennasAntenna receive Diversity left rightDisable Access Point extensions Disabling and Enabling Access Point ExtensionsNo dot11 extension aironet Snap dot1h Snap or 802.1h dot1h, the default settingPayload-encapsulation Set the encapsulation transformation method to RFC1042Enable Pspf Configure terminal Enter global configuration modeBridge-group group port-protected Configuring Protected Ports Configuring Beacon Period and DtimRts retries value Configuring RTS Threshold and RetriesConfiguring Maximum Data Retries Rts threshold valueFragment-threshold value Configuring Fragmentation ThresholdBytes for the 2.4-GHz radio. Enter a setting from 256 to Enabling Short Slot Time for 802.11g RadiosPerforming a Carrier Busy Test OL-6415-04 Configuring Multiple SSIDs Understanding Multiple SSIDs Ssid Configuration Methods Supported by Cisco IOS ReleasesVlan Creating an Ssid Globally Configuring Multiple SSIDsCommand Purpose Viewing SSIDs Configured Globally Using a Radius Server to Restrict SSIDsUsing Spaces in SSIDs Requirements for Configuring Multiple BSSIDs Configuring Multiple Basic SSIDsGuidelines for Using Multiple BSSIDs Information-element ssidl CLI Configuration ExampleDisplaying Configured BSSIDs Enabling Mbssid and Ssidl at the same timeBelow is a sample configuration for enabling Ssidl Sample Configuration for Enabling Mbssid and SsidlUse the no form of the command to disable Ssidl IEs Below is a sample configuration for enabling MbssidInterface Dot11Radio0/0/0 no ip address OL-6415-04 Configuring an Access Point as a Local Authenticator Configure a Local Authenticator Understand Local AuthenticationAaa new-model Enable AAA Guidelines for Local AuthenticatorsConfiguration Overview Configuring the Local Authenticator Access PointSsid ssid Reauthentication time secondsRadius-server local Vlan vlanMac-auth-only Password nthash passwordThis example shows how to set up EAP-FAST authentication End Routerconfig# aaa new-model Configuring PAC Settings Configuring EAP-FAST SettingsConfiguring Server Keys Configuring an Authority IDPossible PAC Failures Caused by Access Point Clock Unblocking Locked Usernames Limiting the Local Authenticator to One Authentication TypeViewing Local Authenticator Statistics This example shows local authenticator statisticsUsing Debug Messages Understand Encryption Types, Configure Encryption Types, Configuring Encryption TypesUnderstand Encryption Types Creating WEP Keys Configure Encryption TypesKey Security Configuration WEP Key RestrictionWEP Key Restrictions EncryptionAccess Point Associated Device Slot Transmit? Key Contents Example WEP Key SetupCreating Cipher Suites Cipher Suites Compatible with WPA Compatible Cipher Suites Enabling and Disabling Broadcast Key RotationWPA Security Security Type in Universal Client ModeTkip AES TKIP+AES Universal client configurationWEP 40-bit WEP 128-bit Caveats DebuggingWEP OL-6415-04 Configuring Authentication Types Open Authentication to Access Point Understand Authentication TypesTraffic from client Shared Key Authentication to Access PointSequence for EAP Authentication EAP Authentication to NetworkMAC Address Authentication to the Network Using WPA Key Management Combining MAC-Based, EAP, and Open Authentication5shows the WPA key management process Protocol Required? Systems WPA-PSK Mode Windows XP YesSoftware and Firmware Requirements for WPA and WPA-TKIP Third Party Host SupplicantAssigning Authentication Types to an Ssid Configure Authentication TypesOptional eap list-name Authentication openOptional Set the authentication type to open for this Ssid Mac-address list-name alternateMac-address list-name Authentication sharedAuthentication network-eap Authentication key-managementConfiguring WPA Migration Mode Wpa-psk hex ascii 0 Configuring Additional WPA SettingsConfiguring MAC Authentication Caching Server Dot1x client-timeout secondsDot11 holdoff-time seconds Dot1x reauth-period secondsDetects two MIC failures within 60 seconds, it blocks all Security Feature Client Setting Access Point SettingTkip clients on that interface for the holdtime period WPA-PSK Security Feature Client Setting Access Point Setting Configuring Radius Servers Understanding Radius Configuring and Enabling RadiusRadius Operation Default Radius Configuration Configuring RadiusIdentifying the Radius Server Host Radius-server host hostname Acct-port port-number timeoutPort for authentication requests.Optional For acct-port Radius-server timeout command is usedShow running-config Verify your entries Configuring Radius Login AuthenticationInclude-in-access-req format %h Aaa authentication login defaultLogin authentication default Authentication login commandDefining AAA Server Groups Define the AAA server-group with a group name Port for authentication requestsPort for accounting requests Aaa group server radius group-nameRadius Starting Radius Accounting Selecting the Csid Format Configuring Settings for All Radius ServersOption MAC Address Example Show running-config Verify your settings Radius-server vsa send accounting AuthenticationRadius-server host hostname ip-address non-standard Radius-server key string Configuring WISPr Radius AttributesSnmp-server location location Displaying the Radius ConfigurationAttribute ID Description Radius Attributes Sent by the Access PointVLAN-ID VSA attribute NAS-Location Disc-Cause-Ext Acct-Terminate-CauseConfiguring VLANs Understanding VLANs Related Documents LAN and Vlan Segmentation with Wireless DevicesIncorporating Wireless Devices into VLANs Configuring VLANsInterface dot11radio 0.x Configuring a VlanEncapsulation dot1q vlan-id Creating a Vlan Name Using a Radius Server to Assign Users to VLANsGuidelines for Using Vlan Names Assigning Names to VLANsViewing VLANs Configured on the Access Point Ssid Vlan ID Vlan Configuration ExampleVlan 1 Interfaces Vlan 2 Interfaces Vlan 3 Interfaces Configuring VlanConfiguring VLANs Vlan Configuration Example OL-6415-04 Understanding QoS for Wireless LANs, Configuring QoS, Configuring QoSQoS for Wireless LANs Versus QoS on Wired LANs Understanding QoS for Wireless LANsImpact of QoS on a Wireless LAN Upstream and Downstream Traffic Flow Precedence of QoS SettingsUsing Wi-Fi Multimedia Mode Fixed Slot Time Configuring QoSConfiguration Guidelines Adjusting Radio Access CategoriesDisabling Igmp Snooping Helper Sample Configuration Using the CLIJapan Channel SettingsIeee 802.11b 2.4-GHz Band Center Frequency AmericasAmericas -A Emea -E Japan -J Frequency Ieee 802.11g 2.4-GHz BandIeee 802.11a 5-GHz Band Center Regulatory DomainsFrequency North America OL-6415-04 Protocol Filters Protocol EGP PUP Chaos IcmpIgmp TCPISO Designator IMAP2 TsapPOP2 POP3CVS RIPRPC UucpMIB List Supported MIBsIEEE802dot11-MIB RFC1213-MIB RFC1398-MIB SNMPv2-MIB SNMPv2-SMI SNMPv2-TC Using FTP to Access the MIB FilesLevel Description Error and Event MessagesHow to Read System Messages This appendix lists the CLI error and event messagesAssociation Management Messages Explanation a station associated to an access pointExplanation a station disassociated from an access point Message Traceback ReportsSubsystem Messages Recommended Action None Explanation The device has begun its DFS scanning process Recommended Action None Error Message DOT11-4-RMINCAPABLE Interface interface Recommended Action Reload the system Error Message DOT11-4-CANTASSOC Cannot associate characters Recommended Action None Recommended Action Local Authenticator Messages Operating in the 2.4-GHz band Network with wireless stationsWireless network composed of stations without Access Points Access PointGL-2 Hoc modeCorresponding IP addresses LAN 802.11 specificationsWired Ethernet network An antenna that radiates its signal in a spherical patternTransmission at 2 Mbps Transmission at 6, 9, 12, 18, 24, 36, 48, and 54 MbpsThat of a cable While maintaining an unbroken connection to the LANComputing device with an installed client adapter Wireless MultiMedia802.1X for authenticated key management AES-CCMP EAPIN-2 EAP-FAST 1Leap FTPOfdm Names, Vlan Network-EAPQbss Radius RFC Guest mode Multiple SSIDs Support Using spacesLocal authentication Names Ssid 4 Vlan command 4 Regulatory DomainsWPA migration mode Wpa-psk command World-mode commandIN-7 IN-8 IN-9 IN-10 IN-11 IN-12 IN-13 IN-14