Cisco Small Business AP541N Manuale di istruzioni

Cisco Small Business

AP541N Dual-band Single-radio Access Point

OL-20285-01

ADMINISTRATION

GUIDE

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

Contents

Chapter 1: Getting Started 1

Administrator Computer Requirements 2

Administration PC IP Address 3

Connecting the Access Point to a PC 3

Connect the Access Point to an Administration PC 4

Connecting the Access Point to the PC by using a Direct Cable Connection4

Connecting the Access Point to the PC through a Network Connection 5

Launching the Access Point Configuration Utility 6

Display the Configuration Utility By Using the Default IP Address 6

Display the Configuration Utility by Using Cisco Configuration Assistant 2.1 or

higher 9

Display the Configuration Utility by Using Another IP Address 11

Troubleshooting Your Connection 13

Using the Ping Command to Test the Connection 13

Possible Cause of Failure 13

Resetting the Device by using the Reset Button 14

Configuring the Access Point by using the Getting Started Page 15

Access Point Configuration 15

Access Point Management Page 16

Wireless Configuration Page 16

Wireless Client Requirements 16

Verifying the Installation 18

Configuring Security on the Wireless Access Point 19

Chapter 2: Status 21

Device Information 22

Network Interfaces 23

Wired Settings 24

Wireless Settings 24

Traffic Statistics 24

Associated Clients 27

Link Integrity Monitoring 29

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

Contents

Rogue AP Detection 29

Save or Import a List of Known Access Points 34

Chapter 3: Setup 35

LAN Settings 35

Configuring 802.1X Authentication 38

Enabling the Network Time Protocol 41

Chapter 4: Wireless 47

Modifying Wireless Radio Settings 47

Modifying Virtual Access Point Settings 50

Security (Mode) 58

Client Connection Control 71

Configuring a MAC Filter and Station List on the Access Point 71

Configuring MAC Authentication on the RADIUS Server 74

Modifying Advanced Settings 74

Configuring the Wireless Distribution System 85

WEP on WDS Links 88

WPA/PSK on WDS Links 89

Bandwidth Utilization 90

Configuring Quality of Service (QoS) 91

Chapter 5: SNMP 97

Configuring SNMP on the Access Point 97

Configuring SNMP Views 101

Configuring SNMP Groups 103

Configuring SNMP Users 106

SNMP Targets 108

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

Contents

Chapter 6: Administration 111

Administrator 111

Access Point Configuration 113

Resetting the Access Point to the Factory Default Configuration 114

Saving the Current Configuration to a Backup File 114

Saving the Current Configuration by using TFTP 114

Saving the Current Configuration by using HTTP 115

Restoring the Configuration from a Previously Saved File 115

Restoring the Current Configuration by using TFTP 115

Restoring the Current Configuration by Using HTTP 116

Rebooting the Access Point 117

Software Upgrade 117

Upgrading the Software by using TFTP 117

Upgrading the Software by Using HTTP 119

Event Logs 120

Configuring Persistent Logging Options 121

Configuring the Log Relay Host for Kernel Messages 123

Enabling or Disabling the Log Relay Host on the Events Page 124

Configuring the Web Server Settings 125

Creating an Administration Access Control List 127

Chapter 7: Clustering Multiple Access Points 129

Managing Access Points in the Cluster 129

Clustering Single and Dual Radio Access Points 130

Viewing and Configuring Cluster Members 130

Removing an Access Point from the Cluster 133

Adding an Access Point to a Cluster 133

Navigating to Configuration Information for a Specific Access Point 134

Navigating to an Access Point by Using its IP Address in a URL 134

Managing Cluster Sessions 134

Sorting Session Information 137

Configuring and Viewing Channel Management Settings 137

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

Contents

Stopping/Starting Automatic Channel Assignment 139

Viewing Current Channel Assignments and Setting Locks 139

Viewing the Last Proposed Set of Changes 140

Configuring Advanced Settings 141

Viewing Wireless Neighborhood Information 142

Viewing Details for a Cluster Member 146

Chapter 8: Configuration Examples 149

Configuring a VAP 150

VAP Configuration from the Web Interface 151

VAP Configuration Using SNMP 152

Configuring Wireless Radio Settings 153

Wireless Radio Configuration from the Web Interface 153

Wireless Radio Configuration Using SNMP 155

Configuring the Wireless Distribution System 155

WDS Configuration from the Web Interface 156

WDS Configuration Using SNMP 157

Clustering Access Points 158

Clustering APs by Using the Web Interface 158

Clustering Access Points by Using SNMP 160

Appendix 9:Default Settings 161

Appendix 10:Where to Go From Here 165

Cisco AP541N Dual-band Single-radio Access Point Quick Start Guide 1

Getting Started

The Cisco AP541N Dual-band Single-radio Access Point 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

2 Cisco AP541N 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.

Getting Started

Connecting the Access Point to a PC

Cisco AP541N Dual-band Single-radio Access Point Quick Start Guide 3

Administration PC IP Address

We recommend that if you are starting from the default configuration or this is the

first time the device will be configured that you configure the device before you

deploy it in the network by using the access point default static IP address

(192.168.10.10). To do so, the PC IP address must be on the same subnet as the

access point.

Verify that your PC IP address is set to an address on the same subnet as the

access point:

STEP 1 From the Windows Start menu, choose Settings > Control Panel.

STEP 2 On the Control Panel dialog box, click Network.

STEP 3 In the Network dialog box select TCP/IP for your PC Ethernet card, then click

Properties.

STEP 4 In the IP Address window, click Specify an IP address.

STEP 5 In the IP Address field, enter an IP address that is in the same subnet as the access

point IP address. (The default access point IP address is 192.168.10.10. The

default subnet mask is 255.255.255.0.) For example, you can set the:

PC IP address to 192.168.10.250

PC IP subnet mask to 255.255.255.0

STEP 6 In the Subnet Mask field, type 255.255.255.0.

STEP 7 Click OK.

STEP 8 If you are prompted to restart your PC, click Yes .

Connecting the Access Point to a PC

To configure the access point, you can connect the access point directly to an

administration PC or through the network to an administration PC.

If you are not using CCA to configure the access point, we recommend that you configure

the device before deploying it in the network by following the instructions in the “Connect

the Access Point to an Administration PC” section. Otherwise, follow the instructions in

the “Connecting the Access Point to the PC through a Network Connection”

Getting Started

Connecting the Access Point to a PC

4 Cisco AP541N Dual-band Single-radio Access Point Quick Start Guide

Connect the Access Point to an Administration PC

You can connect the access point to a administration PC directly or through the

network. We recommend that you connect the access point directly to the PC

unless you are using CCA to configure the access point.

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

Connection

To connect the access point to an administration PC, use a direct-cable

connection:

STEP 1 Connect one end of an Ethernet straight-through or crossover cable to the network

port on the access point, as shown in Figure 1.

STEP 2 Connect the other end of the cable to the Ethernet port on the PC.

Figure 1 Connecting the Access Point Using a Direct-Cable Connection

If you use this method, you will need to reconfigure the cabling for subsequent

startup and deployment of the access point so that the access point is no longer

connected directly to the PC but instead is connected to the LAN (either by using a

hub or a switch).

STEP 3 Connect the power adapter to the power port on the back of the access point.

STEP 4 Plug the other end of the power cord into a power outlet.

STEP 5 Configure the access point by following the instructions in the “Display the

Configuration Utility By Using the Default IP Address” section.

195057

192.168.10.10

255.255.255.0

192.168.10.250

255.255.255.0

Getting Started

Connecting the Access Point to a PC

Cisco AP541N Dual-band Single-radio Access Point Quick Start Guide 5

Connecting the Access Point to the PC through a Network Connection

To connect the access point to an administration PC through the network:

STEP 1 Connect one end of an Ethernet straight-through or crossover cable to the network

port on the access point, as shown in Figure 2.

STEP 2 Connect the other end to the same hub or switch where your PC is connected.

Figure 2 Connecting the Access Point Using a LAN Connection

The hub or switch you use must permit broadcast signals from the access point to

reach the other devices on the network.

STEP 3 If you are not using PoE, connect the power adapter to the power port on the back

of the access point, then plug the other end of the power cord into a power outlet.

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