Cisco IOS XE Release 3SE User manual

Lightweight Access Point Configuration Guide, Cisco IOS XE Release
3SE (Catalyst 3650 Switches)
First Published: October 10, 2013
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Text Part Number: OL-28697-01

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CONTENTS
Preface Preface ix
Document Conventions ix
Related Documentation xi
Obtaining Documentation and Submitting a Service Request xi
CHAPTER 1 Using the Command-Line Interface 1
Information About Using the Command-Line Interface 1
Command Modes 1
Using the Help System 3
Understanding Abbreviated Commands 4
No and Default Forms of Commands 4
CLI Error Messages 4
Configuration Logging 5
How to Use the CLI to Configure Features 5
Configuring the Command History 5
Changing the Command History Buffer Size 6
Recalling Commands 6
Disabling the Command History Feature 7
Enabling and Disabling Editing Features 7
Editing Commands Through Keystrokes 8
Editing Command Lines That Wrap 9
Searching and Filtering Output of show and more Commands 10
Accessing the CLI Through a Console Connection or Through Telnet 11
CHAPTER 2 Using the Web Graphical User Interface 13
Prerequisites for Using the Web GUI 13
Information About Using The Web GUI 13
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Web GUI Features 13
Connecting the Console Port of the Switch 15
Logging On to the Web GUI 15
Enabling Web and Secure Web Modes 15
Configuring the Switch Web GUI 16
CHAPTER 3 Configuring the Switch for Access Point Discovery 19
Finding Feature Information 19
Prerequisites for Configuring the Switch for Access Point Discovery 19
Restrictions for Configuring the Switch for Access Point Discovery 20
Information About Configuring the Switch for Access Point Discovery 20
Access Point Communication Protocols 20
Viewing Access Point Join Information 21
Troubleshooting the Access Point Join Process 21
How to Configure Access Point Discovery 22
Configuring the Syslog Server for Access Points (CLI) 22
Monitoring Access Point Join Information (CLI) 23
Searching for Access Point Radios (GUI) 24
Monitoring the Interface Details (GUI) 24
Configuration Examples for Configuring the Switch for Access Point Discovery 25
Displaying the MAC Addresses of all Access Points: Example 25
DHCP Option 43 for Lightweight Cisco Aironet Access Points Configuration Example 26
CHAPTER 4 Configuring Data Encryption 27
Finding Feature Information 27
Prerequisites for Configuring Data Encryption 27
Restrictions for Configuring Data Encryption 27
Information About Data Encryption 28
How to Configure Data Encryption 28
Configuring Data Encryption (CLI) 28
Configuring Data Encryption (GUI) 29
Configuration Examples for Configuring Data Encryption 29
Displaying Data Encryption States for all Access Points: Examples 29
CHAPTER 5 Configuring Retransmission Interval and Retry Count 31
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Finding Feature Information 31
Prerequisites for Configuring the Access Point Retransmission Interval and Retry Count 31
Information About Retransmission Interval and Retry Count 31
How to Configure Access Point Retransmission Interval and Retry Count 32
Configuring the Access Point Retransmission Interval and Retry Count (CLI) 32
Configuring the Access Point Retransmission Interval and Retry Count (GUI) 33
Viewing CAPWAP Maximum Transmission Unit Information (CLI) 34
Viewing CAPWAP Maximum Transmission Unit Information (GUI) 34
Configuration Examples for Configuring Access Point Retransmission Interval and Retry
Count 35
Viewing the CAPWAP Retransmission Details: Example 35
Viewing Maximum Transmission Unit Information: Example 35
CHAPTER 6 Configuring Adaptive Wireless Intrusion Prevention System 37
Finding Feature Information 37
Prerequisites for Configuring wIPS 37
How to Configure wIPS on Access Points 38
Configuring wIPS on an Access Point (CLI) 38
Configuring wIPS on an Access Point (GUI) 39
Monitoring wIPS Information 40
Configuration Examples for Configuring wIPS on Access Points 41
Displaying the Monitor Configuration Channel Set: Example 41
Displaying wIPS Information: Examples 41
CHAPTER 7 Configuring Authentication for Access Points 43
Finding Feature Information 43
Prerequisites for Configuring Authentication for Access Points 43
Restrictions for Configuring Authentication for Access Points 44
Information about Configuring Authentication for Access Points 44
How to Configure Authentication for Access Points 44
Configuring Global Credentials for Access Points (CLI) 44
Configuring Global Credentials for Access Points (GUI) 46
Configuring Authentication for Access Points (CLI) 47
Configuring Authentication for Access Points (GUI) 49
Configuring the Switch for Authentication (CLI) 50
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Configuration Examples for Configuring Authentication for Access Points 51
Displaying the Authentication Settings for Access Points: Examples 51
CHAPTER 8 Converting Autonomous Access Points to Lightweight Mode 53
Finding Feature Information 53
Prerequisites for Converting Autonomous Access Points to Lightweight Mode 53
Information About Autonomous Access Points Converted to Lightweight Mode 54
Reverting from Lightweight Mode to Autonomous Mode 54
Using DHCP Option 43 and DHCP Option 60 54
How Converted Access Points Send Crash Information to the Switch 55
Uploading Memory Core Dumps from Converted Access Points 55
Displaying MAC Addresses for Converted Access Points 55
Configuring a Static IP Address for a Lightweight Access Point 55
How to Convert a Lightweight Access Point Back to an Autonomous Access Point 56
Converting a Lightweight Access Point Back to an Autonomous Access Point (CLI) 56
Converting a Lightweight Access Point Back to an Autonomous Access Point (Using the
Mode Button and a TFTP Server) 56
Authorizing Access Points (CLI) 57
Authorizing Access Points (GUI) 58
Disabling the Reset Button on Converted Access Points (CLI) 59
Monitoring the AP Crash Log Information 60
How to Configure a Static IP Address on an Access Point 61
Configuring a Static IP Address on an Access Point (CLI) 61
Configuring a Static IP Address on an Access Point (GUI) 62
Recovering the Access Point Using the TFTP Recovery Procedure 63
Configuration Examples for Converting Autonomous Access Points to Lightweight Mode 63
Displaying the IP Address Configuration for Access Points: Example 63
Displaying Access Point Crash File Information: Example 64
CHAPTER 9 Using Cisco Workgroup Bridges 65
Finding Feature Information 65
Information About Cisco Workgroup Bridges and non-Cisco Workgroup bridges 65
Monitoring the Status of Workgroup Bridges 66
Debugging WGB Issues (CLI) 66
Configuration Examples for Configuring Workgroup Bridges 68
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WGB Configuration: Example 68
CHAPTER 10 Configuring Probe Request Forwarding 69
Finding Feature Information 69
Information About Configuring Probe Request Forwarding 69
How to Configure Probe Request Forwarding (CLI) 69
CHAPTER 11 Optimizing RFID Tracking 71
Finding Feature Information 71
Optimizing RFID Tracking on Access Points 71
How to Optimize RFID Tracking on Access Points 71
Optimizing RFID Tracking on Access Points (CLI) 71
Configuration Examples for Optimizing RFID Tracking 72
Displaying all the Access Points in Monitor Mode: Example 72
CHAPTER 12 Configuring Country Codes 75
Finding Feature Information 75
Prerequisites for Configuring Country Codes 75
Information About Configuring Country Codes 76
How to Configure Country Codes (CLI) 76
Configuration Examples for Configuring Country Codes 79
Displaying Channel List for Country Codes: Example 79
CHAPTER 13 Configuring Link Latency 81
Finding Feature Information 81
Prerequisites for Configuring Link Latency 81
Restrictions for Configuring Link Latency 81
Information About Configuring Link Latency 82
TCP MSS 82
Link Tests 82
How to Configure Link Latency 83
Configuring Link Latency (CLI) 83
Configuring Link Latency (GUI) 85
How to Configure TCP MSS 86
Configuring TCP MSS (CLI) 86
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Configuring TCP MSS (GUI) 86
Performing a Link Test (CLI) 87
Configuration Examples for Configuring Link Latency 88
Running a Link Test: Example 88
Displaying Link Latency Information: Example 88
Displaying TCP MSS Settings: Example 89
CHAPTER 14 Configuring Power over Ethernet 91
Finding Feature Information 91
Information About Configuring Power over Ethernet 91
How to Configure Power over Ethernet 91
Configuring Power over Ethernet (CLI) 91
Configuring Power over Ethernet (GUI) 92
Configuration Examples for Configuring Power over Ethernet 93
Displaying Power over Ethernet Information: Example 93
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Preface
•Document Conventions, page ix
•Related Documentation, page xi
•Obtaining Documentation and Submitting a Service Request, page xi
Document Conventions
This document uses the following conventions:
DescriptionConvention
Both the ^symbol and Ctrl represent the Control (Ctrl) key on a keyboard. For
example, the key combination ^D or Ctrl-D means that you hold down the Control
key while you press the D key. (Keys are indicated in capital letters but are not
case sensitive.)
^ or Ctrl
Commands and keywords and user-entered text appear in bold font.bold font
Document titles, new or emphasized terms, and arguments for which you supply
values are in italic font.
Italic font
Terminal sessions and information the system displays appear in courier font.Courier font
Bold Courier font indicates text that the user must enter.Bold Courier font
Elements in square brackets are optional.[x]
An ellipsis (three consecutive nonbolded periods without spaces) after a syntax
element indicates that the element can be repeated.
...
A vertical line, called a pipe, indicates a choice within a set of keywords or
arguments.
|
Optional alternative keywords are grouped in brackets and separated by vertical
bars.
[x | y]
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DescriptionConvention
Required alternative keywords are grouped in braces and separated by vertical
bars.
{x | y}
Nested set of square brackets or braces indicate optional or required choices
within optional or required elements. Braces and a vertical bar within square
brackets indicate a required choice within an optional element.
[x {y | z}]
A nonquoted set of characters. Do not use quotation marks around the string or
the string will include the quotation marks.
string
Nonprinting characters such as passwords are in angle brackets.< >
Default responses to system prompts are in square brackets.[ ]
An exclamation point (!) or a pound sign (#) at the beginning of a line of code
indicates a comment line.
!, #
Reader Alert Conventions
This document may use the following conventions for reader alerts:
Means reader take note. Notes contain helpful suggestions or references to material not covered in the
manual.
Note
Means the following information will help you solve a problem.
Tip
Means reader be careful. In this situation, you might do something that could result in equipment damage
or loss of data.
Caution
Means the described action saves time. You can save time by performing the action described in the
paragraph.
Timesaver
Means reader be warned. In this situation, you might perform an action that could result in bodily
injury.
Warning
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Preface
Document Conventions

Related Documentation
Before installing or upgrading the switch, refer to the switch release notes.Note
•Error Message Decoder, located at:
https://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi
Obtaining Documentation and Submitting a Service Request
For information on obtaining documentation, submitting a service request, and gathering additional information,
see the monthly What's New in Cisco Product Documentation, which also lists all new and revised Cisco
technical documentation, at:
http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html
Subscribe to the What's New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed
and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free
service and Cisco currently supports RSS version 2.0.
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Preface
Related Documentation

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Preface
Obtaining Documentation and Submitting a Service Request

CHAPTER 1
Using the Command-Line Interface
•Information About Using the Command-Line Interface, page 1
•How to Use the CLI to Configure Features, page 5
Information About Using the Command-Line Interface
Command Modes
The Cisco IOS user interface is divided into many different modes. The commands available to you depend
on which mode you are currently in. Enter a question mark (?) at the system prompt to obtain a list of commands
available for each command mode.
You can start a CLI session through a console connection, through Telnet, a SSH, or by using the browser.
When you start a session, you begin in user mode, often called user EXEC mode. Only a limited subset of
the commands are available in user EXEC mode. For example, most of the user EXEC commands are one-time
commands, such as show commands, which show the current configuration status, and clear commands,
which clear counters or interfaces. The user EXEC commands are not saved when the switch reboots.
To have access to all commands, you must enter privileged EXEC mode. Normally, you must enter a password
to enter privileged EXEC mode. From this mode, you can enter any privileged EXEC command or enter
global configuration mode.
Using the configuration modes (global, interface, and line), you can make changes to the running configuration.
If you save the configuration, these commands are stored and used when the switch reboots. To access the
various configuration modes, you must start at global configuration mode. From global configuration mode,
you can enter interface configuration mode and line configuration mode.
This table describes the main command modes, how to access each one, the prompt you see in that mode, and
how to exit the mode.
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Table 1: Command Mode Summary
About This ModeExit MethodPromptAccess MethodMode
Use this mode to
•Change
terminal
settings.
•Perform basic
tests.
•Display
system
information.
Enter logout or
quit.
Switch>
Begin a session
using Telnet, SSH,
or console.
User EXEC
Use this mode to
verify commands
that you have
entered. Use a
password to protect
access to this mode.
Enter disable to
exit.
Switch#
While in user EXEC
mode, enter the
enable command.
Privileged EXEC
Use this mode to
configure
parameters that
apply to the entire
switch.
To exit to privileged
EXEC mode, enter
exit or end, or press
Ctrl-Z.
Switch(config)#
While in privileged
EXEC mode, enter
the configure
command.
Global
configuration
Use this mode to
configure VLAN
parameters. When
VTP mode is
transparent, you can
create
extended-range
VLANs (VLAN IDs
greater than 1005)
and save
configurations in the
switch startup
configuration file.
To exit to global
configuration mode,
enter the exit
command.
To return to
privileged EXEC
mode, press Ctrl-Z
or enter end.
Switch(config-vlan)#
While in global
configuration mode,
enter the vlan
vlan-id command.
VLAN
configuration
Use this mode to
configure
parameters for the
Ethernet ports.
To exit to global
configuration mode,
enter exit.
To return to
privileged EXEC
mode, press Ctrl-Z
or enter end.
Switch(config-if)#
While in global
configuration mode,
enter the interface
command (with a
specific interface).
Interface
configuration
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Using the Command-Line Interface
Command Modes

About This ModeExit MethodPromptAccess MethodMode
Line configuration Use this mode to
configure
parameters for the
terminal line.
To exit to global
configuration mode,
enter exit.
To return to
privileged EXEC
mode, press Ctrl-Z
or enter end.
Switch(config-line)#
While in global
configuration mode,
specify a line with
the line vty or line
console command.
Using the Help System
You can enter a question mark (?) at the system prompt to display a list of commands available for each
command mode. You can also obtain a list of associated keywords and arguments for any command.
SUMMARY STEPS
1. help
2. abbreviated-command-entry ?
3. abbreviated-command-entry <Tab>
4. ?
5. command ?
6. command keyword ?
DETAILED STEPS
PurposeCommand or Action
Obtains a brief description of the help system in any
command mode.
help
Example:
Switch# help
Step 1
Obtains a list of commands that begin with a particular
character string.
abbreviated-command-entry ?
Example:
Switch# di?
dir disable disconnect
Step 2
Completes a partial command name.
abbreviated-command-entry <Tab>
Example:
Switch# sh conf<tab>
Switch# show configuration
Step 3
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Using the Command-Line Interface
Using the Help System

PurposeCommand or Action
Lists all commands available for a particular command
mode.
?
Example:
Switch> ?
Step 4
Lists the associated keywords for a command.
command ?
Example:
Switch> show ?
Step 5
Lists the associated arguments for a keyword.
command keyword ?
Example:
Switch(config)# cdp holdtime ?
<10-255> Length of time (in sec) that receiver
Step 6
must keep this packet
Understanding Abbreviated Commands
You need to enter only enough characters for the switch to recognize the command as unique.
This example shows how to enter the show configuration privileged EXEC command in an abbreviated form:
Switch# show conf
No and Default Forms of Commands
Almost every configuration command also has a no form. In general, use the no form to disable a feature or
function or reverse the action of a command. For example, the no shutdown interface configuration command
reverses the shutdown of an interface. Use the command without the keyword no to reenable a disabled feature
or to enable a feature that is disabled by default.
Configuration commands can also have a default form. The default form of a command returns the command
setting to its default. Most commands are disabled by default, so the default form is the same as the no form.
However, some commands are enabled by default and have variables set to certain default values. In these
cases, the default command enables the command and sets variables to their default values.
CLI Error Messages
This table lists some error messages that you might encounter while using the CLI to configure your switch.
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Understanding Abbreviated Commands

Table 2: Common CLI Error Messages
How to Get HelpMeaningError Message
Reenter the command followed by
a question mark (?) without any
space between the command and
the question mark.
The possible keywords that you can
enter with the command appear.
You did not enter enough
characters for your switch to
recognize the command.
% Ambiguous command: "show
con"
Reenter the command followed by
a question mark (?) with a space
between the command and the
question mark.
The possible keywords that you can
enter with the command appear.
You did not enter all of the
keywords or values required by this
command.
% Incomplete command.
Enter a question mark (?) to display
all of the commands that are
available in this command mode.
The possible keywords that you can
enter with the command appear.
You entered the command
incorrectly. The caret (^) marks the
point of the error.
% Invalid input detected at
‘^’marker.
Configuration Logging
You can log and view changes to the switch configuration. You can use the Configuration Change Logging
and Notification feature to track changes on a per-session and per-user basis. The logger tracks each
configuration command that is applied, the user who entered the command, the time that the command was
entered, and the parser return code for the command. This feature includes a mechanism for asynchronous
notification to registered applications whenever the configuration changes. You can choose to have the
notifications sent to the syslog.
Only CLI or HTTP changes are logged.Note
How to Use the CLI to Configure Features
Configuring the Command History
The software provides a history or record of commands that you have entered. The command history feature
is particularly useful for recalling long or complex commands or entries, including access lists. You can
customize this feature to suit your needs.
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Using the Command-Line Interface
Configuration Logging

Changing the Command History Buffer Size
By default, the switch records ten command lines in its history buffer. You can alter this number for a current
terminal session or for all sessions on a particular line. This procedure is optional.
SUMMARY STEPS
1. terminal history [size number-of-lines]
DETAILED STEPS
PurposeCommand or Action
Changes the number of command lines that the switch records during
the current terminal session in privileged EXEC mode. You can
configure the size from 0 to 256.
terminal history [size number-of-lines]
Example:
Switch# terminal history size 200
Step 1
Recalling Commands
To recall commands from the history buffer, perform one of the actions listed in this table. These actions are
optional.
The arrow keys function only on ANSI-compatible terminals such as VT100s.Note
SUMMARY STEPS
1. Ctrl-P or use the up arrow key
2. Ctrl-N or use the down arrow key
3. show history
DETAILED STEPS
PurposeCommand or Action
Recalls commands in the history buffer, beginning with the most recent command.
Repeat the key sequence to recall successively older commands.
Ctrl-P or use the up arrow key
Step 1
Returns to more recent commands in the history buffer after recalling commands
with Ctrl-P or the up arrow key. Repeat the key sequence to recall successively
more recent commands.
Ctrl-N or use the down arrow key
Step 2
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Configuring the Command History

PurposeCommand or Action
Lists the last several commands that you just entered in privileged EXEC mode.
The number of commands that appear is controlled by the setting of the terminal
show history
Example:
Switch# show history
Step 3
history global configuration command and the history line configuration
command.
Disabling the Command History Feature
The command history feature is automatically enabled. You can disable it for the current terminal session or
for the command line. This procedure is optional.
SUMMARY STEPS
1. terminal no history
DETAILED STEPS
PurposeCommand or Action
Disables the feature during the current terminal session in
privileged EXEC mode.
terminal no history
Example:
Switch# terminal no history
Step 1
Enabling and Disabling Editing Features
Although enhanced editing mode is automatically enabled, you can disable it and reenable it.
SUMMARY STEPS
1. terminal editing
2. terminal no editing
DETAILED STEPS
PurposeCommand or Action
Reenables the enhanced editing mode for the current terminal
session in privileged EXEC mode.
terminal editing
Example:
Switch# terminal editing
Step 1
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Using the Command-Line Interface
Enabling and Disabling Editing Features

PurposeCommand or Action
Disables the enhanced editing mode for the current terminal
session in privileged EXEC mode.
terminal no editing
Example:
Switch# terminal no editing
Step 2
Editing Commands Through Keystrokes
The keystrokes help you to edit the command lines. These keystrokes are optional.
The arrow keys function only on ANSI-compatible terminals such as VT100s.Note
Table 3: Editing Commands
DescriptionEditing Commands
Moves the cursor back one character.Ctrl-B or use the left arrow key
Moves the cursor forward one character.Ctrl-F or use the right arrow key
Moves the cursor to the beginning of the command
line.
Ctrl-A
Moves the cursor to the end of the command line.Ctrl-E
Moves the cursor back one word.Esc B
Moves the cursor forward one word.Esc F
Transposes the character to the left of the cursor with
the character located at the cursor.
Ctrl-T
Erases the character to the left of the cursor.Delete or Backspace key
Deletes the character at the cursor.Ctrl-D
Deletes all characters from the cursor to the end of
the command line.
Ctrl-K
Deletes all characters from the cursor to the beginning
of the command line.
Ctrl-U or Ctrl-X
Deletes the word to the left of the cursor.Ctrl-W
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Using the Command-Line Interface
Enabling and Disabling Editing Features