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Reference Manual for the NETGEAR RangeMax™ Wireless Access Point WPN802
B-12 Wireless Networking Basics
202-10101-01, May 2005
WPA/WPA2 Authentication: Enterprise-level User
Authentication via 802.1x/EAP and RADIUS
Figure B-3: WPA/WPA2 Overview
IEEE 802.1x offers an effective framework for authenticating and controlling user traffic to a
protected network, as well as providing a vehicle for dynamically varying data encryption keys via
EAP from a RADIUS server, for example. This framework enables using a central authentication
server, which employs mutual authentication so that a rogue wireless user does not join the
network.
It is important to note that 802.1x does not provide the actual authentication mechanisms. When
using 802.1x, the EAP type, such as Transport Layer Security (EAP-TLS), or EAP Tunneled
Transport Layer Security (EAP-TTLS), defines how the authentication takes place.
Note: For environments with a Remote Authentication Dial-In User Service (RADIUS)
infrastructure, WPA supports Extensible Authentication Protocol (EAP). For environments
without a RADIUS infrastructure, WPA supports the use of a pre-shared key.
Together, these technologies provide a framework for strong user authentication.
Windows XP implements 802.1x natively, and several NETGEAR switch and wireless access
point products support 802.1x.
Certificate
Authority
(for
example
Win Server,
VeriSign)
WPA/WPA2
enabled
wireless
client with
“supplicant”
TCP/IP
Ports Closed
Until
Authenticated
RADIUS Server
Wired Network with Optional
802.1x Port Based Network
Access Control
WPA/WPA2
enabled
Access Point
using
pre-shared key
or 802.1x
TCP/IP
Ports Opened
After
Authenticated
Wireless LAN
Login
Authentication
- Reference Manual for the 1
- NETGEAR RangeMax™ 1
- Wireless Access Point 1
- Contents 5
- Chapter 1 9
- About This Manual 9
- How to Use This Manual 10
- How to Print this Manual 10
- About This Manual 1-3 11
- 202-10101-01, May 2005 11
- 1-4 About This Manual 12
- Introduction 13
- Chapter 2 13
- 802.11g Wireless Networking 14
- Package Contents 15
- The Front Panel Status Lights 16
- The Rear Panel 16
- • AC power adapter outlet 17
- Settings 17
- 2-6 Introduction 18
- Chapter 3 19
- System Requirements 20
- 202-10101-01, 4 May 2005 21
- Figure 3-7: Login window 26
- Figure 3-8: WPN802 home page 27
- Chapter 4 29
- Wireless Configuration 29
- 4-2 Wireless Configuration 30
- Wireless Configuration 4-3 31
- 4-4 Wireless Configuration 32
- Wireless Data 33
- Security Options 33
- Range: Up to 300 Foot Radius 33
- 4-6 Wireless Configuration 34
- Wireless Configuration 4-7 35
- 4-8 Wireless Configuration 36
- How to Configure WEP or WPA 37
- 4-10 Wireless Configuration 38
- Wireless Configuration 4-11 39
- 4-12 Wireless Configuration 40
- Turning Access Control On 41
- 4-14 Wireless Configuration 42
- Chapter 5 43
- Management and Information 43
- Then, Upgrade the Firmware 44
- Backing up Settings 46
- Viewing Statistics 48
- Chapter 6 49
- Troubleshooting 49
- 6-2 Troubleshooting 50
- Troubleshooting 6-3 51
- 6-4 Troubleshooting 52
- Appendix A 53
- Technical Specifications 53
- A-2 Technical Specifications 54
- Appendix B 55
- Wireless Networking Basics 55
- 802.11 Authentication 57
- Open System Authentication 57
- Shared Key Authentication 58
- Overview of WEP Parameters 59
- Key Size 60
- Wireless Channels 61
- How Does WPA Compare to WEP? 63
- Wired Network with Optional 66
- 802.1x Port Based Network 66
- Access Control 66
- Wireless LAN 66
- Controlled Port 67
- Is WPA/WPA2 Perfect? 70
- Product Support for WPA/WPA2 70
- Glossary 73
- 2 Glossary 74
- Access Point (AP) 75
- Ad-Hoc mode 75
- Bandwidth 75
- Bits per second (bps) 75
- 4 Glossary 76
- 6 Glossary 78
- IEEE 802.11 79
- Infrastructure mode 79
- ISO Network Model 79
- 8 Glossary 80
- 10 Glossary 82
- 12 Glossary 84
- War Driving 85
- Wi-Fi (Wireless Fidelity) 85
- Wi-Fi Protected Access (WPA) 85
- 14 Glossary 86
- Wireless Multimedia (WMM) 87
- Wireless Networking 87
- WLAN (Wireless LAN) 87
- 16 Glossary 88
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