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ZyAIR G-1000 Access Point User’s Guide
Wireless Configuration and Roaming 5-3
Figure 5-3 Extended Service Set
5.2 Wireless LAN Basics
Refer also to the Wizard Setup chapter for more background information on Wireless LAN features, such as
channels.
5.2.1 RTS/CTS
A hidden node occurs when two stations are within range of the same access point, but are not within range
of each other. The following figure illustrates a hidden node. Both stations (STA) are within range of the
access point (AP) or wireless gateway, but out-of-range of each other, so they cannot “hear” each other, that
is they do not know if the channel is currently being used. Therefore, they are considered hidden from each
other.
- ZyAIR G-1000 1
- Copyright 2
- Interference Statement 3
- ZyXEL Limited Warranty 4
- Customer Support 5
- Table of Contents 7
- Table of Contents xi 11
- List of Figures 12
- List of Tables 15
- Preface 17
- Part I: 19
- Chapter 1 21
- Getting to Know Your ZyAIR 21
- ZyAIR LED 22
- IEEE 802.1x Network Security 22
- Full Network Management 23
- Logging and Tracing 23
- Wireless Association List 23
- Chapter 2 25
- 2.2.2 Power Port 27
- 2.2.3 The RESET Button 27
- 2.2.4 Antennas 27
- 2.5 Configuring Your ZyAIR 28
- Chapter 3 29
- 3.2 Resetting the ZyAIR 30
- Part II: 33
- Chapter 4 35
- System Screens 35
- 4.3 Configuring Password 36
- 4.4 Setting the Time 37
- Chapter 5 41
- 5.1.3 ESS 42
- 5.2 Wireless LAN Basics 43
- 5.3 Configuring Wireless 45
- 5.4 Configuring Roaming 46
- Chapter 6 49
- Wireless Security 49
- 6.2.2 Authentication 50
- 6.4 MAC Filter 52
- 6.5 802.1x Overview 54
- 6.6 Introduction to RADIUS 54
- Ethernet 56
- RADIUS Server 56
- Wireless Station 56
- 6.9 Configuring 802.1x 57
- 6.11 Configuring RADIUS 61
- Table 6-5 RADIUS 63
- Part III: 65
- Chapter 7 67
- IP Screen 67
- 7.3 Configuring IP Address 68
- DESCRIPTION 69
- Chapter 8 71
- Logs Screens 71
- 8.2 Configuring Log Settings 72
- LABEL DESCRIPTION 73
- Address Info 73
- Table 8-2 Log Settings 74
- Logs Screens 8-5 75
- Part IV: 77
- Chapter 9 79
- 9.3 Wireless Screen 81
- 9.4 F/W Upload Screen 82
- 9.5 Configuration Screen 85
- Part V: 91
- Chapter 10 93
- Introducing the SMT 93
- Introducing the SMT 10-3 95
- Chapter 11 99
- General Setup 99
- 11-2 General Setup 100
- ESC] at any time to cancel 100
- Chapter 12 101
- LAN Setup 101
- 12.3 Wireless LAN Setup 102
- 12-4 LAN Setup 104
- Edit MAC Address Filter= Yes 105
- FIELD DESCRIPTION 107
- 12-8 LAN Setup 108
- Chapter 13 109
- Dial-in User Setup 109
- 13-2 Dial-in User Setup 110
- Chapter 14 111
- SNMP Configuration 111
- 14.2 Supported MIBs 112
- 14.3 SNMP Configuration 112
- 14.4 SNMP Traps 113
- 14-4 SNMP Configuration 114
- Table 14-2 SNMP Traps 114
- Chapter 15 115
- System Security 115
- 15.1.3 IEEE 802.1x 117
- System Security 15-5 119
- Chapter 16 121
- 16.3 Log and Trace 124
- 16.4 Diagnostic 125
- Chapter 17 127
- Maintenance 127
- 17.2 Backup Configuration 128
- 17.2.4 Example: TFTP Command 130
- 17.3 Restore Configuration 131
- 17.4.1 Firmware Upload 133
- 17.4.4 TFTP File Upload 135
- 17.4.5 Example: TFTP Command 136
- Chapter 18 137
- 18.2 Time and Date Setting 138
- 18.2.1 Resetting the Time 139
- Chapter 19 141
- Remote Management 141
- 19.5 System Timeout 143
- Part VI: 145
- Appendix A 147
- Troubleshooting 147
- Problems with the Password 148
- Problems with Telnet 148
- Troubleshooting A-3 149
- Appendix B 151
- Windows 2000/NT/XP 154
- Macintosh OS 8/9 158
- Macintosh OS X 160
- Appendix C 163
- Appendix D 167
- Client computer 168
- Appendix E 169
- Types of EAP Authentication 169
- Appendix F 171
- Recommendation 171
- Connector Type 172
- Appendix G 173
- IP Subnetting 173
- Subnet Masks 174
- Subnetting 174
- Example: Two Subnets 175
- Example: Four Subnets 177
- Example Eight Subnets 178
- Appendix H 181
- Command Interpreter 181
- Appendix I 183
- NetBIOS Filter Commands 183
- NetBIOS Filter Configuration 184
- Appendix J 185
- Protection 185
- Appendix K 187
- Log Descriptions 187
- Log Commands 190
- Displaying Logs 190
- Log Command Example 191
- Appendix L 193
- Power Adaptor Specifications 193
- Appendix M 195
- M-2 Index 196
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