Wireless Technologies Networking for Home and Small Businesses

Wireless Technologies Networking for Home and Small Businesses – Chapter 7 ITE I Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 1

Objectives § Describe wireless technologies. § Describe the various components and structure of a WLAN § Describe wireless LAN security issues and mitigation strategies § Configure an integrated wireless access point and a wireless client. ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 2

Wireless Technologies § Describe the various wireless technologies and the devices that use them ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 3

Wireless Technologies § Describe the benefits and limitations of wireless ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 4

Wireless Technologies § Define wireless networks and their boundaries ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 5

Components and Structure of a WLAN § Identify and describe wireless LAN standards ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 6

Components and Structure of a WLAN § Identify and describe various wireless LAN components. ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 7

Components and Structure of a WLAN § Identify and describe various wireless modes and the importance of the SSID IBSS – ad hoc BSS - infrastructure ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 8

Components and Structure of a WLAN § Describe how wireless channels are used § CSMA/CA: Describe how wireless channels avoid collisions ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 9

Components and Structure of a WLAN § Configure an integrated wireless access point ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 10

Components and Structure of a WLAN § Configure a wireless client ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 11

Wireless LAN Security Issues and Mitigation Strategies § Describe why and how people attack wireless networks ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 12

Wireless LAN Security Issues and Mitigation Strategies § Limiting access to a WLAN MAC address filtering ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 13

Wireless LAN Security Issues and Mitigation Strategies § Describe authentication and its purpose ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 14

Wireless LAN Security Issues and Mitigation Strategies § Describe encryption and its purpose on a wireless network. ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 15

Wireless LAN Security Issues and Mitigation Strategies § Describe traffic filtering and its purpose ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 16

Planning the WLAN § Plan for a wireless LAN implementation ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 17

Configure an Integrated Wireless Access Point and Wireless Client § Installing and securing the AP ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 18

Configure an Integrated Wireless Access Point and Wireless Client § Describe options for backing-up and restoring AP configurations ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 19

Configure an Integrated Wireless Access Point and Wireless Client § Identify current version of firmware and describe how to update firmware ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 20

Summary § Wireless technologies use electromagnetic radiation in the form of radio signals to carry information between devices. § Ease and convenience of connecting devices wirelessly creates security concerns that need to be addressed. § Before installing wireless devices, an installation plan should be created which includes strategies for layout and security. ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 21

ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 22