ZyAIR G-3000 User’s Guide
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Chapter 6 Wireless Security
6.2.1 Data Encryption
WEP provides a mechanism for encrypting data using encryption keys. Both the AP and the
wireless stations must use the same WEP key to encrypt and decrypt data. Your ZyAIR allows
you to configure up to four 64-bit or 128-bit WEP keys, but only one key can be enabled at
any one time.
6.2.2 Authentication
Three different methods can be used to authenticate wireless stations to the network:
Open
System
,
Shared Key
, and
Auto
. The following figure illustrates the steps involved.
Figure 30 WEP Authentication Steps
Open system authentication involves an unencrypted two-message procedure. A wireless
station sends an open system authentication request to the AP, which will then automatically
accept and connect the wireless station to the network. In effect, open system is not
authentication at all as any station can gain access to the network.
Shared key authentication involves a four-message procedure. A wireless station sends a
shared key authentication request to the AP, which will then reply with a challenge text
message. The wireless station must then use the AP’s default WEP key to encrypt the
challenge text and return it to the AP, which attempts to decrypt the message using the AP’s
default WEP key. If the decrypted message matches the challenge text, the wireless station is
authenticated.
Summary of Contents for ZyAIR G-3000
Page 14: ...ZyAIR G 3000 User s Guide 15 Table of Contents...
Page 22: ...ZyAIR G 3000 User s Guide 23 List of Tables...
Page 26: ...ZyAIR G 3000 User s Guide 27 Preface...
Page 40: ...ZyAIR G 3000 User s Guide 41 Chapter 2 Introducing the Web Configurator...
Page 48: ...ZyAIR G 3000 User s Guide 49 Chapter 3 Wizard Setup...
Page 54: ...ZyAIR G 3000 User s Guide 55 Chapter 4 System Screens...
Page 100: ...ZyAIR G 3000 User s Guide 101 Chapter 8 IP Screen...
Page 116: ...ZyAIR G 3000 User s Guide 117 Chapter 10 Maintenance Figure 59 Restart Screen...
Page 122: ...ZyAIR G 3000 User s Guide 123 Chapter 11 Introducing the SMT...
Page 132: ...ZyAIR G 3000 User s Guide 133 Chapter 13 LAN Setup...
Page 174: ...ZyAIR G 3000 User s Guide 175 Appendix C Power over Ethernet Specifications...
Page 176: ...ZyAIR G 3000 User s Guide 177 Appendix D Brute Force Password Guessing Protection...
Page 188: ...ZyAIR G 3000 User s Guide 189 Appendix E Setting up Your Computer s IP Address...
Page 192: ...ZyAIR G 3000 User s Guide 193 Appendix F IP Address Assignment Conflicts...
Page 200: ...ZyAIR G 3000 User s Guide 201 Appendix G IP Subnetting...
Page 202: ...ZyAIR G 3000 User s Guide 203 Appendix H Command Interpreter...
Page 206: ...ZyAIR G 3000 User s Guide 207 Appendix I Log Descriptions...
Page 210: ...ZyAIR G 3000 User s Guide 211 Appendix J Wireless LAN and IEEE 802 11...
