User Guide
Table Of Contents
- Cisco Wireless ISR and HWIC Access Point Configuration Guide
- Contents
- Preface
- Overview
- Configuring Radio Settings
- Enabling the Radio Interface
- Roles in Radio Network
- Configuring Network or Fallback Role
- Universal Client Mode
- Configuring Universal Client Mode
- Configuring Radio Data Rates
- Configuring Radio Transmit Power
- Configuring Radio Channel Settings
- Enabling and Disabling World Mode
- Enabling and Disabling Short Radio Preambles
- Configuring Transmit and Receive Antennas
- Disabling and Enabling Access Point Extensions
- Configuring the Ethernet Encapsulation Transformation Method
- Enabling and Disabling Reliable Multicast to Workgroup Bridges
- Enabling and Disabling Public Secure Packet Forwarding
- Configuring Beacon Period and DTIM
- Configuring RTS Threshold and Retries
- Configuring Maximum Data Retries
- Configuring Fragmentation Threshold
- Enabling Short Slot Time for 802.11g Radios
- Performing a Carrier Busy Test
- Configuring Multiple SSIDs
- Configuring an Access Point as a Local Authenticator
- Understand Local Authentication
- Configure a Local Authenticator
- Guidelines for Local Authenticators
- Configuration Overview
- Configuring the Local Authenticator Access Point
- Configuring Other Access Points to Use the Local Authenticator
- Configuring EAP-FAST Settings
- Limiting the Local Authenticator to One Authentication Type
- Unblocking Locked Usernames
- Viewing Local Authenticator Statistics
- Using Debug Messages
- Configuring Encryption Types
- Configuring Authentication Types
- Configuring RADIUS Servers
- Configuring and Enabling RADIUS
- Understanding RADIUS
- RADIUS Operation
- Configuring RADIUS
- Default RADIUS Configuration
- Identifying the RADIUS Server Host
- Configuring RADIUS Login Authentication
- Defining AAA Server Groups
- Configuring RADIUS Authorization for User Privileged Access and Network Services
- Starting RADIUS Accounting
- Selecting the CSID Format
- Configuring Settings for All RADIUS Servers
- Configuring the Access Point to Use Vendor-Specific RADIUS Attributes
- Configuring the Access Point for Vendor-Proprietary RADIUS Server Communication
- Configuring WISPr RADIUS Attributes
- Displaying the RADIUS Configuration
- RADIUS Attributes Sent by the Access Point
- Configuring and Enabling RADIUS
- Configuring VLANs
- Configuring QoS
- Channel Settings
- Protocol Filters
- Supported MIBs
- Error and Event Messages
- Glossary
- Index
2-20
Cisco Wireless ISR and HWIC Access Point Configuration Guide
OL-6415-04
Chapter 2 Configuring Radio Settings
Enabling and Disabling World Mode
Confirming that DFS is Enabled
Use the show controller dot11radio1 command to confirm that DFS is enabled. This example shows a
line from the output for the show controller command for a channel on which DFS is enabled:
Current Frequency: 5300 MHz Channel 60 (DFS enabled)
Blocking Channels from DFS Selection
If your regulatory domain limits the channels that you can use in specific locations--for example, indoors
or outdoors--you can block groups of channels to prevent the access point from selecting them when DFS
is enabled. Use this configuration interface command to block groups of channels from DFS selection:
[no] dfs band [1] [2] [3] [4] block
The 1, 2, 3, and 4 options designate blocks of channels:
• 1—Specifies frequencies 5.150 to 5.250 GHz. This group of frequencies is also known as the UNII-1
band.
• 2—Specifies frequencies 5.250 to 5.350 GHz. This group of frequencies is also known as the UNII-2
band.
• 3—Specifies frequencies 5.470 to 5.725 GHz.
• 4—Specifies frequencies 5.725 to 5.825 GHz. This group of frequencies is also known as the UNII-3
band.
This example shows how to prevent the access point from selecting frequencies 5.150 to 5.350 GHz
during DFS:
router(config-if)# dfs band 1 2 block
This example shows how to unblock frequencies 5.150 to 5.350 for DFS:
router(config-if)# no dfs band 1 2 block
This example shows how to unblock all frequencies for DFS:
router(config-if)# no dfs band block
Enabling and Disabling World Mode
You c an c on f i gu re t he wir e les s devi ce t o s uppo rt 8 02 .1 1d wo rld mo d e o r Ci sc o l ega cy wor ld m od e.
When you enable world mode, the wireless device adds channel carrier set information to its beacon.
Client devices with world mode enabled receive the carrier set information and adjust their settings
automatically. For example, a client device used primarily in Japan could rely on world mode to adjust
its channel and power settings automatically when it travels to Italy and joins a network there. Cisco
client devices running firmware version 5.30.17 or later detect whether the wireless device is using
802.11d or Cisco legacy world mode and automatically use world mode that matches the mode used by
the wireless device. World mode is disabled by default.