Cisco AP541N-A-K9 Manuale di istruzioni

Cisco Small Business Pro

AP 541N Dual-band Single-radio Access Point

OL-20285-01

ADMINISTRATION

GUIDE

Cisco AP 541N Dual-band Single-radio Access Point Quick Start Guide i

Contents

Preface 3

Audience 3

Document Conventions 3

Online Help, Supported Browsers, and Limitations 5

Chapter 1: Getting Started 6

Administrator Computer Requirements 7

Administration PC IP Address 8

Connecting the Access Point to a PC 8

Connect the Access Point to an Administration PC 9

Connecting the Access Point to the PC by using a Direct Cable Connection9

Connecting the Access Point to the PC through a Network Connection 10

Launching the Access Point Configuration Utility 11

Display the Configuration Utility By Using the Default IP Address 11

Display the Configuration Utility by Using Cisco Configuration Assistant 2.1 or

higher 14

Display the Configuration Utility by Using Another IP Address 16

Troubleshooting Your Connection 18

Using the Ping Command to Test the Connection 18

Possible Cause of Failure 18

Resetting the Device by using the Reset Button 19

Configuring the Access Point by using the Getting Started Page 20

Access Point Configuration 20

Access Point Management Page 21

Wireless Configuration Page 21

Wireless Client Requirements 21

Verifying the Installation 23

Configuring Security on the Wireless Access Point 24

Chapter 2: Status 26

Device Information 27

Cisco AP 541N Dual-band Single-radio Access Point Quick Start Guide ii

Contents

Network Interfaces 28

Wired Settings 29

Wireless Settings 29

Traffic Statistics 29

Associated Clients 32

Link Integrity Monitoring 34

Rogue AP Detection 34

Save or Import a List of Known Access Points 39

Chapter 3: Setup 40

LAN Settings 40

Configuring 802.1X Authentication 43

Enabling the Network Time Protocol 46

Chapter 4: Wireless 52

Modifying Wireless Radio Settings 52

Modifying Virtual Access Point Settings 55

Security (Mode) 63

Client Connection Control 76

Configuring a MAC Filter and Station List on the Access Point 76

Configuring MAC Authentication on the RADIUS Server 79

Modifying Advanced Settings 79

Configuring the Wireless Distribution System 91

WEP on WDS Links 94

WPA/PSK on WDS Links 95

Bandwidth Utilization 96

Configuring Quality of Service (QoS) 97

Chapter 5: SNMP 104

Configuring SNMP on the Access Point 104

Configuring SNMP Views 108

Cisco AP 541N Dual-band Single-radio Access Point Quick Start Guide iii

Contents

Configuring SNMP Groups 110

Configuring SNMP Users 113

SNMP Targets 115

Chapter 6: Administration 118

Administrator 118

Access Point Configuration 120

Resetting the Access Point to the Factory Default Configuration 121

Saving the Current Configuration to a Backup File 121

Saving the Current Configuration by using TFTP 121

Saving the Current Configuration by using HTTP 122

Restoring the Configuration from a Previously Saved File 122

Restoring the Current Configuration by using TFTP 122

Restoring the Current Configuration by Using HTTP 123

Rebooting the Access Point 124

Software Upgrade 124

Upgrading the Software by using TFTP 124

Upgrading the Software by Using HTTP 126

Event Logs 127

Configuring Persistent Logging Options 128

Configuring the Log Relay Host for Kernel Messages 130

Enabling or Disabling the Log Relay Host on the Events Page 131

Configuring the Web Server Settings 132

Creating an Administration Access Control List 134

Chapter 7: Clustering Multiple Access Points 136

Managing Access Points in the Cluster 136

Clustering Single and Dual Radio Access Points 137

Viewing and Configuring Cluster Members 137

Removing an Access Point from the Cluster 140

Adding an Access Point to a Cluster 140

Navigating to Configuration Information for a Specific Access Point 141

Cisco AP 541N Dual-band Single-radio Access Point Quick Start Guide iv

Contents

Navigating to an Access Point by Using its IP Address in a URL 141

Managing Cluster Sessions 142

Sorting Session Information 144

Configuring and Viewing Channel Management Settings 145

Stopping/Starting Automatic Channel Assignment 146

Viewing Current Channel Assignments and Setting Locks 147

Viewing the Last Proposed Set of Changes 148

Configuring Advanced Settings 149

Viewing Wireless Neighborhood Information 150

Viewing Details for a Cluster Member 154

Chapter 8: Configuration Examples 156

Configuring a VAP 157

VAP Configuration from the Web Interface 158

VAP Configuration Using SNMP 159

Configuring Wireless Radio Settings 160

Wireless Radio Configuration from the Web Interface 160

Wireless Radio Configuration Using SNMP 162

Configuring the Wireless Distribution System 162

WDS Configuration from the Web Interface 163

WDS Configuration Using SNMP 164

Clustering Access Points 165

Clustering APs by Using the Web Interface 165

Clustering Access Points by Using SNMP 167

Appendix A:Default Settings 168

Appendix B:Where to Go From Here 172

Preface

AP541N Dual-band Single-radio Access Point Administration Guide 3

Preface

This guide describes setup, configuration, administration and maintenance for the

Cisco®AP 541N Dual-band Single-radio Access Point on a wireless network.

Audience

This guide is intended for System Administrators that are responsible for

configuring and operating a network by using Cisco software

To obtain the greatest benefit from this guide, you should also have basic

knowledge of Ethernet and wireless networking concepts.

Document Conventions

This section describes the conventions this document uses.

NOTE A note provides more information about a feature or technology and cross-

references to related topics.

CAUTION A caution provides information about critical aspects of access point configuration,

combinations of settings, events, or procedures that can adversely affect network

connectivity, security, and so forth.

Preface

AP541N Dual-band Single-radio Access Point Administration Guide 4

Table 1 describes the typographical conventions used in this guide.

Table 1 Typographical Conventions

Symbol Example Description

Bold Click Apply to save

your settings.

Menu titles, page names, and button

names

Blue Text See Document

Conventions, page

Hyperlinked text.

courier font WLAN-AP# show

network

Screen text, file names, commands,

user-typed command-line entries

courier font

italics

value Command parameter, which might be a

variable or fixed value.

<> Angle

brackets

<value> Indicates a parameter is a variable. You

must enter a value in place of the

brackets and text inside them.

[ ] Square

brackets

[value] Indicates an optional fixed parameter.

[< >] Angle

brackets within

square

brackets

[<value>] Indicates an optional variable.

{} curly braces {choice1 |

choice2}

Indicates that you must select a

parameter from the list of choices.

| Vertical bars choice1 |

choice2

Separates the mutually exclusive

choices.

[{}] Braces

within square

brackets

[{choice1 |

choice2}]

Indicate a choice within an optional

element.

Preface

AP541N Dual-band Single-radio Access Point Administration Guide 5

Online Help, Supported Browsers, and Limitations

Online help for the Access Point Configuration Utility pages provides information

about all fields and features available from the Access Point Configuration Utility.

The information in the online help is a subset of the information available in the

AP541N Dual-band Single-radio Access Point Administration Guide.

Online help information corresponds to each page on the Access Point

Configuration Utility.

For information about the settings on the current page, click the Help link on the

right side of a page.

Cisco AP 541N Dual-band Single-radio Access Point Quick Start Guide 6

Getting Started

The Cisco Access Point provides continuous, high-speed access between

wireless devices and Ethernet devices. It is an advanced, standards-based

solution for wireless networking in businesses of any size. The access point

enables wireless local area network (WLAN) deployment while providing state-of-

the-art wireless networking features.

The access point operates in Standalone Mode. In Standalone Mode, the access

point acts as an individual access point in the network, and you manage it by using

the Access Point Configuration Utility, or SNMP.

This document describes how to perform the setup, management, and

maintenance of the access point in Standalone Mode. Before you power on a new

access point, review the following sections to check required hardware and

software components, client configurations, and compatibility issues. Make sure

you have everything you need for a successful launch and test of your new or

extended wireless network.

This chapter contains the following topics:

•Administrator Computer Requirements

•Connecting the Access Point to a PC

•Troubleshooting Your Connection

•Configuring the Access Point by using the Getting Started Page

•Verifying the Installation

•Configuring Security on the Wireless Access Point

To manage the access point by using the Web interface, the access point needs

an IP address. If you use VLANs or IEEE 802.1X Authentication (port security) on

your network, you might need to configure additional settings on the access point

before it can connect to the network.

Getting Started

Administrator Computer Requirements

7 Cisco AP 541N Dual-band Single-radio Access Point Quick Start Guide

NOTE The WLAN AP is not designed to function as a gateway to the Internet. To connect

your WLAN to other LANs or the Internet, you need a gateway device.

Administrator Computer Requirements

Table 1 describes the minimum requirements for the personal computer for the

initial configuration and administration of the access point through a Access Point

Configuration Utility.

Table 1 Requirements for Configuration

Required Software

or Component

Description

Ethernet Connection

to the Access Point

The computer used to configure the access point must

be connected to the access point by an Ethernet cable.

The IP address must be on the same subnet as the

access point. The subnet mask must match the subnet

mask of the access point. The Administration PC IP

Address section describes the procedure for changing

these parameters on a PC running Windows.

Web Browser and

Operating System

The following Web browsers can be used to display

the access point Configuration Utility Web pages:

•Microsoft®Internet Explorer®version 6.x or 7.x

(with up-to-date patch level for either major

version) and Mozilla Firefox 3.x on Microsoft

Windows®XP or Microsoft Windows 2000

•Mozilla Firefox 3.x on Redhat®Linux®version 2.4

or later

The Web browser must have JavaScript™ enabled to

support the interactive features of the Configuration

Utility interface.

Security Settings Ensure that security is disabled on the wireless client

used initially to configure the access point. Once the

device has been configured, security can be enabled.

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