User Manual User guide

Rockwell Automation Publication 1783-UM006A-EN-P - May 2014 269
Configuring Radio Settings Chapter 7
Cisco's WEP key permutation technique based on an early algorithm
presented by the IEEE 802.11i security task group. The standards-based
algorithm, TKIP, does not require Aironet extensions to be enabled.
• Repeater mode
You must enable the Aironet extensions on repeater access points and on
the associated root access points.
• World mode (legacy only)
Client devices with legacy world mode enabled receive carrier set
information from the wireless access point and adjust their settings
automatically. Aironet extensions are not required for 802.11d world
mode operation.
• Limiting the power level on associated client devices
When a client device associates to the wireless access point, the wireless
access point sends the maximum allowed power level setting to the client.
Disabling Aironet extensions disables the features listed above, but it sometimes
improves the ability of non-Cisco client devices to associate to the wireless access
point.
Aironet extensions are enabled by default. Beginning in privileged EXEC mode,
follow these steps to disable Aironet extensions:
1. Enter global configuration mode.
configure terminal
2. Enter interface configuration mode for the radio interface. The 2.4 GHz
radio is radio 0, and the 5 GHz radio is radio 1.
• The 802.11n 2.4 GHz radio is radio 0
• The 802.11n 5 GHz radio is radio 1.
interface dot11radio {0 | 1}
3. Disable Aironet extensions.
no dot11 extension aironet
4. Return to privileged EXEC mode.
end
5. (Optional) Save your entries in the configuration file.
copy running-config startup-config
Use the dot11 extension aironet command to enable Aironet extensions
if they are disabled.