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G-3000H User’s Guide
Appendix D Brute-Force Password Guessing Protection 237
Appendix D
Brute-Force Password Guessing
Protection
The following describes the commands for enabling, disabling and configuring the brute-force
password guessing protection mechanism for the password. See Appendix I for information on
the command structure.
Example
sys pwderrtm 5
This command sets the password protection to block all access attempts for five minutes after
the third time an incorrect password is entered.
Table 92 Brute-Force Password Guessing Protection Commands
COMMAND DESCRIPTION
sys pwderrtm This command displays the brute-force guessing password protection settings.
sys pwderrtm 0 This command turns off the password’s protection from brute-force guessing. The
brute-force password guessing protection is turned off by default.
sys pwderrtm N This command sets the password protection to block all access attempts for N (a
number from 1 to 60) minutes after the third time an incorrect password is entered.
- User’s Guide 1
- Copyright 2
- Federal Communications 3
- Commission (FCC) Interference 3
- Statement 3
- Certifications 4
- ZyXEL Limited Warranty 5
- Customer Support 6
- Customer Support 7 7
- 8 Customer Support 8
- Table of Contents 9
- Chapter 8 11
- Chapter 7 11
- 16 Table of Contents 16
- List of Figures 17
- 22 List of Figures 22
- List of Tables 23
- 26 List of Tables 26
- About This User's Guide 27
- Related Documentation 27
- User Guide Feedback 28
- Syntax Conventions 28
- Graphics Icons Key 29
- 30 Preface 30
- CHAPTER 1 31
- 1.2.2 Firmware Features 32
- WDS Functionality 33
- 802.11b Wireless LAN Standard 33
- 802.11g Wireless LAN Standard 34
- Certificates 34
- Full Network Management 36
- Logging and Tracing 36
- Embedded FTP and TFTP Servers 36
- Wireless Association List 36
- Wireless LAN Channel Usage 36
- 1.3.1 Access Point 37
- 1.3.2 Multiple ESS 37
- 1.3.3 AP + Bridge 38
- 1.3.4 Bridge / Repeater 39
- Figure 6 Bridge Application 40
- CHAPTER 2 41
- 2.2 Resetting the ZyAIR 43
- CHAPTER 3 45
- 46 Chapter 3 Wizard Setup 46
- Chapter 3 Wizard Setup 47 47
- 3.4 Wizard Setup: IP Address 48
- Chapter 3 Wizard Setup 49 49
- 3.5 Basic Setup Complete 50
- CHAPTER 4 51
- 4.3 Configuring Password 52
- Chapter 4 System Screens 53 53
- Figure 16 Password 53
- Table 8 Password 53
- 54 Chapter 4 System Screens 54
- Figure 17 Time Setting 54
- Table 9 Time Setting 54
- Chapter 4 System Screens 55 55
- 56 Chapter 4 System Screens 56
- CHAPTER 5 57
- 5.1.2 ESS 58
- 5.2 Wireless LAN Basics 59
- 5.3 WMM QoS 60
- 5.3.2.1 DiffServ 61
- 5.4.1 Rapid STP 62
- 5.4.2 STP Terminology 62
- 5.5 Wireless Screen Overview 63
- 5.6 Configuring Wireless 64
- 5.6.2 Bridge/Repeater Mode 66
- Figure 22 Bridging Example 67
- 5.6.3 AP+Bridge Mode 70
- 5.6.4 Multiple ESS Mode 71
- CHAPTER 6 73
- 6.3 802.1x Overview 74
- 6.5 Dynamic WEP Key Exchange 75
- 6.6 Introduction to WPA 75
- 6.6.1 User Authentication 76
- 6.6.2 Encryption 76
- 6.8 Security Modes 78
- Table 16 Security Modes 79
- 6.12 Configuring Security 80
- 6.12.1 Security: No Access 81
- 6.12.2 Security: WEP 82
- Table 21 Security: WEP 83
- 6.13 Introduction to RADIUS 89
- 6.14 Configuring RADIUS 89
- Figure 37 RADIUS 90
- Table 26 RADIUS 90
- CHAPTER 7 93
- 7.1.3 Multiple ESS Example 94
- 7.2 SSID 97
- 7.2.1 Configuring SSID 98
- Figure 42 Configuring SSID 99
- Table 30 Configuring SSID 99
- 7.2.2 Second Rx VLAN ID 100
- G-3000H User’s Guide 101
- CHAPTER 8 103
- 00:0a:c5:00:00:66 106
- 00:0a:c5:00:00:cc 106
- 8.3 Configuring MAC Filter 108
- 8.4 Configuring Roaming 109
- Figure 52 Roaming Example 110
- Figure 53 Roaming 111
- Table 33 Roaming 111
- CHAPTER 9 113
- SSID screen 114
- Chapter 9 VLAN 115 115
- Table 34 VLAN 115
- 116 Chapter 9 VLAN 116
- Figure 57 VLAN-Aware Switch 116
- Chapter 9 VLAN 117 117
- Figure 59 VLAN Setup 117
- 118 Chapter 9 VLAN 118
- Chapter 9 VLAN 119 119
- 120 Chapter 9 VLAN 120
- Chapter 9 VLAN 121 121
- 122 Chapter 9 VLAN 122
- Chapter 9 VLAN 123 123
- 124 Chapter 9 VLAN 124
- Chapter 9 VLAN 125 125
- 126 Chapter 9 VLAN 126
- CHAPTER 10 127
- 10.3 Configuring IP 128
- CHAPTER 11 129
- 11.3 Configuration Summary 130
- 11.4 My Certificates 130
- Chapter 11 Certificates 131 131
- Figure 75 My Certificates 131
- Table 38 My Certificates 131
- 132 Chapter 11 Certificates 132
- 11.6 Importing a Certificate 133
- 11.7 Creating a Certificate 134
- Chapter 11 Certificates 135 135
- 11.8 My Certificate Details 136
- Chapter 11 Certificates 137 137
- 138 Chapter 11 Certificates 138
- 11.9 Trusted CAs 139
- 140 Chapter 11 Certificates 140
- Figure 79 Trusted CAs 140
- Table 42 Trusted CAs 140
- Chapter 11 Certificates 141 141
- Figure 80 Trusted CA Import 141
- Table 43 Trusted CA Import 141
- 142 Chapter 11 Certificates 142
- Chapter 11 Certificates 143 143
- Table 44 Trusted CA Details 143
- 144 Chapter 11 Certificates 144
- Chapter 11 Certificates 145 145
- 146 Chapter 11 Certificates 146
- CHAPTER 12 147
- 12.2 Configuring WWW 148
- 12.3 Configuring Telnet 150
- 12.4 Configuring TELNET 150
- 12.5 Configuring FTP 151
- 12.6 SNMP 152
- 12.6.1 Supported MIBs 154
- 12.6.2 SNMP Traps 154
- 12.7 SNMP Traps 155
- CHAPTER 13 157
- 158 Chapter 13 Log Screens 158
- Table 51 View Log 158
- Chapter 13 Log Screens 159 159
- Figure 89 Log Settings 159
- Table 52 Log Settings 159
- 160 Chapter 13 Log Screens 160
- CHAPTER 14 161
- 14.2.1 System Statistics 162
- 14.3 Association List 163
- 14.4 Channel Usage 164
- Chapter 14 Maintenance 165 165
- Figure 93 Channel Usage 165
- Table 56 Channel Usage 165
- 14.5 F/W Upload Screen 166
- Chapter 14 Maintenance 167 167
- 14.6 Configuration Screen 168
- Chapter 14 Maintenance 169 169
- 14.7 Restart Screen 170
- CHAPTER 15 171
- Table 60 Main Menu Commands 173
- Table 61 Main Menu Summary 175
- CHAPTER 16 177
- 178 Chapter 16 General Setup 178
- ESC] at any time to cancel 178
- CHAPTER 17 179
- 17.3 Wireless LAN Setup 180
- Chapter 17 LAN Setup 181 181
- 182 Chapter 17 LAN Setup 182
- Chapter 17 LAN Setup 183 183
- 17.3.2 Configuring Roaming 184
- Chapter 17 LAN Setup 185 185
- 186 Chapter 17 LAN Setup 186
- Chapter 17 LAN Setup 187 187
- + Bridge and press [ENTER] 188
- Chapter 17 LAN Setup 189 189
- 190 Chapter 17 LAN Setup 190
- Chapter 17 LAN Setup 191 191
- 192 Chapter 17 LAN Setup 192
- CHAPTER 18 193
- CHAPTER 19 195
- 196 Chapter 19 VLAN Setup 196
- Table 71 Menu 16 VLAN Setup 196
- CHAPTER 20 197
- CHAPTER 21 199
- CHAPTER 22 201
- 22.2 System Information 203
- 22.3 Log and Trace 204
- 22.4 Diagnostic 205
- Diagnostic 206
- CHAPTER 23 207
- 23.2 Backup Configuration 208
- 23.2.4 Example: TFTP Command 211
- 23.3 Restore Configuration 212
- 23.3.1 Restore Using FTP 213
- 23.4.1 Firmware Upload 214
- 23.4.4 TFTP File Upload 215
- 23.4.5 Example: TFTP Command 216
- CHAPTER 24 219
- 24.1.1 CNM 220
- Figure 153 CNM CL 221
- Table 79 CNM Commands 221
- 24.1.3 Configuration Example 223
- 24.2 Time and Date Setting 224
- 24.3 Remote Management Setup 226
- 24.3.3 Web 227
- 24.5 System Timeout 229
- Appendix A 231
- Troubleshooting 231
- Problems with the Password 232
- Problems with Telnet 232
- Appendix B 233
- Specifications 233
- 234 Appendix B Specifications 234
- Appendix C 235
- Power over Ethernet (PoE) 235
- Specifications 235
- Appendix D 237
- Brute-Force Password Guessing 237
- Protection 237
- Appendix E 239
- Installing Components 240
- Configuring 241
- Windows 2000/NT/XP 242
- Macintosh OS 8/9 246
- Macintosh OS X 248
- Verifying Settings 249
- Appendix F 251
- IP addresses dynamically 253
- Appendix G 255
- Wireless LANs 255
- 256 Appendix G Wireless LANs 256
- Appendix G Wireless LANs 257 257
- Fragmentation Threshold 258
- Preamble Type 259
- IEEE 802.1x 260
- Types of Authentication 261
- PEAP (Protected EAP) 262
- Dynamic WEP Key Exchange 262
- Encryption 263
- Security Parameters Summary 264
- Appendix G Wireless LANs 265 265
- 266 Appendix G Wireless LANs 266
- Appendix H 267
- IP Subnetting 267
- Subnet Masks 268
- Subnetting 268
- Example: Two Subnets 269
- 270 Appendix H IP Subnetting 270
- Table 101 Subnet 1 270
- Table 102 Subnet 2 270
- Example: Four Subnets 271
- Example Eight Subnets 272
- Appendix H IP Subnetting 273 273
- 274 Appendix H IP Subnetting 274
- Appendix I 275
- Command Interpreter 275
- Appendix J 277
- Log Descriptions 277
- Log Commands 278
- Log Command Example 279
- Appendix K 281
- Positioning Antennas 282
- Appendix L 283
- Power Adaptor Specifications 283
- Index 285 285
- 286 Index 286
- Index 287 287
- 288 Index 288
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