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NWA-3160 Series User’s Guide
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CHAPTER 15
Rogue AP Detection
15.1 Overview
Rogue APs are wireless access points operating in a network’s coverage area that
are not under the control of the network’s administrators, and can open up holes
in a network’s security. Attackers can take advantage of a rogue AP’s weaker (or
non-existent) security to gain access to the network, or set up their own rogue
APs in order to capture information from wireless clients. If a scan reveals a rogue
AP, you can use commercially-available software to physically locate it.
Note that it is not necessary for a network to have a legitimate wireless LAN
component for rogue APs to open the network to an attacker. In this case, any AP
detected can be classified as rogue.
Figure 108 Rogue AP Example
- NWA-3160 Series 1
- About This User's Guide 3
- Documentation Feedback 4
- Need More Help? 4
- Customer Support 5
- Document Conventions 6
- Icons Used in Figures 7
- Safety Warnings 8
- Contents Overview 10
- New Template User’s Guide 10
- Table of Contents 11
- Table of Contents 19
- Introduction 21
- CHAPTER 1 23
- 1.2 Applications for the NWA 24
- 1.2.2 Bridge / Repeater 25
- Figure 4 Bridging Example 26
- 1.2.3 AP + Bridge 28
- 1.2.4 MBSSID 28
- Figure 8 Multiple BSSs 29
- 1.3 CAPWAP 30
- 1.4 Ways to Manage the NWA 31
- 1.6 Hardware Connections 32
- 1.7 LEDs 33
- Table 1 LEDs (continued) 34
- CHAPTER 2 35
- 2.3 Resetting the NWA 36
- Figure 12 The Status Screen 37
- CHAPTER 3 39
- 3.2.3 Further Reading 41
- 3.3.1.1 Access Point 43
- 3.3.1.2 MBSSID 44
- Figure 33 Tutorial: Warning 57
- 3.4.3 Set Up E-mail Logs 59
- 3.4.5 Test the Setup 60
- 3.5.1 Scenario 61
- 3.5.2 Your Requirements 62
- 3.5.3 Setup 62
- Chapter 3 Tutorials 64
- 3.5.6.1 Checking Settings 67
- 3.6.1 Scenario 69
- 3.6.2 Your Requirements 70
- 3.6.3 Setup 70
- C and D) that can now be 74
- The Web 79
- Configurator 79
- CHAPTER 4 81
- Table 8 The Status Screen 82
- Chapter 4 Status Screen 85
- Chapter 4 Status Screen 86
- CHAPTER 5 87
- 5.2.2 CAPWAP and DHCP 88
- 5.2.3 CAPWAP and IP Subnets 88
- 5.2.4 Notes on CAPWAP 89
- Figure 58 Management Mode 90
- Table 10 Management Mode 90
- Chapter 5 Management Mode 92
- CHAPTER 6 93
- 6.1.3 Before You Begin 94
- Figure 62 Status Screen 96
- Table 11 Status Screen 96
- 6.4 AP Lists Screen 97
- Figure 63 AP Lists Screen 98
- Table 12 AP Lists Screen 98
- 6.5 Configuration Screen 101
- 6.6 Redundancy Screen 102
- 6.7 The Profile Edit Screens 103
- Table 16 Radio Screen 104
- Table 17 Radio Edit Screen 105
- DCS is Disabled by default 106
- CHAPTER 7 109
- IP Address Assignment 110
- IP Address and Subnet Mask 110
- 7.2 General Screen 111
- Chapter 7 System Screens 112
- NWA-3160 Series User’s Guide 112
- LABEL DESCRIPTION 112
- 7.3 Password Screen 113
- LABEL DESCRIPTIONS 114
- 7.4 Time Setting Screen 115
- 7.5 Technical Reference 117
- CHAPTER 8 119
- Figure 74 Basic Service set 120
- Operating Mode 121
- Wireless Mode 122
- 8.2 The Wireless Screen 123
- Chapter 8 Wireless Screen 124
- Chapter 8 Wireless Screen 125
- 8.2.2 Bridge / Repeater Mode 127
- 8.2.3 AP + Bridge Mode 133
- 8.2.4 MBSSID Mode 139
- Table 26 Wireless: MBSSID 140
- 8.3 Technical Reference 143
- 8.3.1.1 Rapid STP 144
- 8.3.1.2 STP Terminology 144
- 8.3.2 DFS 145
- 8.3.3 Roaming 146
- Figure 80 Roaming Example 147
- Figure 81 Enabling Roaming 148
- CHAPTER 9 149
- 9.2 The SSID Screen 151
- 9.2.1 Configuring SSID 152
- 9.3 Technical Reference 153
- 9.3.2 ATC 154
- 9.3.3 ATC+WMM 155
- 9.3.4 Type Of Service (ToS) 156
- Chapter 9 SSID Screen 158
- DSCP values 158
- CHAPTER 10 159
- User Authentication 160
- 10.2 The Security Screen 161
- Figure 87 Wireless Security 162
- Table 38 Wireless Security 162
- 10.2.1 Security: WEP 163
- Table 39 Security: WEP 164
- 10.2.2 Security: 802.1x Only 165
- 10.2.4 Security: WPA 167
- Table 42 Security: WPA 168
- RADIUS server has priority 170
- 10.3 Technical Reference 171
- CHAPTER 11 173
- 11.2 The RADIUS Screen 175
- Table 45 RADIUS 176
- CHAPTER 12 177
- Figure 98 Layer 2 Isolation 179
- Table 46 Layer-2 Isolation 179
- 12.3 Technical Reference 181
- CHAPTER 13 183
- 13.2 The MAC Filter Screen 184
- Table 49 MAC Address Filter 185
- CHAPTER 14 187
- 14.2 The IP Screen 188
- 14.3 Technical Reference 189
- Chapter 14 IP Screen 190
- CHAPTER 15 191
- Friendly APs 192
- “Honeypot” Attack 193
- 15.2 Configuration Screen 194
- 15.2.1 Friendly AP Screen 195
- 15.2.2 Rogue AP Screen 196
- Table 54 Rogue AP 197
- Chapter 15 Rogue AP Detection 198
- CHAPTER 16 199
- Remote Management Limitations 201
- 16.2 The Telnet Screen 202
- 16.3 The FTP Screen 203
- 16.4 The WWW Screen 204
- 16.5 The SNMP Screen 207
- 16.5.1 SNMPv3 User Profile 209
- 16.6 Technical Reference 210
- 16.6.2 Supported MIBs 211
- 16.6.3 SNMP Traps 211
- Table 60 SNMP Traps 212
- CHAPTER 17 213
- 17.1.2 What You Need To Know 214
- 17.3 The Trusted AP Screen 216
- Table 64 Trusted Users 217
- Figure 123 Trusted Users 217
- 17.5 Technical Reference 218
- Wireless Zero Configuration 219
- CHAPTER 18 221
- 18.2 My Certificates Screen 222
- Chapter 18 Certificates 223
- Chapter 18 Certificates 230
- 18.3 Trusted CAs Screen 232
- 18.4 Technical Reference 237
- CHAPTER 19 239
- 19.2 The View Log Screen 240
- Table 72 Logs > View Log 241
- 19.3 The Log Settings Screen 242
- Chapter 19 Log Screens 243
- 19.4 Technical Reference 244
- Table 75 ICMP Notes 245
- Table 76 Sys log 245
- 19.4.2 Log Commands 246
- 19.4.4 Displaying Logs 246
- 19.4.5 Log Command Example 246
- Chapter 19 Log Screens 248
- CHAPTER 20 249
- 20.2 Wireless VLAN Screen 251
- 20.2.1 RADIUS VLAN Screen 252
- Chapter 20 VLAN 253
- 20.3 Technical Reference 254
- Figure 145 VLAN Setup 257
- CHAPTER 21 269
- Figure 163 Load Balancing 271
- Table 81 Load Balancing 271
- Chapter 21 Load Balancing 274
- CHAPTER 22 275
- 22.2 The DCS Screen 276
- Table 82 DCS 277
- CHAPTER 23 279
- 23.2 Association List Screen 280
- 23.3 Channel Usage Screen 281
- 23.4 F/W Upload Screen 282
- 23.5 Configuration Screen 284
- 23.6 Restart Screen 286
- PART III 287
- CHAPTER 24 289
- 24.3 NWA Access and Login 290
- 24.4 AP Management Modes 292
- 24.5 Internet Access 294
- Chapter 24 Troubleshooting 296
- CHAPTER 25 297
- Figure 181 Masonry Plug 301
- APPENDIX A 303
- Figure 185 RTS/CTS 306
- Fragmentation Threshold 307
- Preamble Type 307
- IEEE 802.11g Wireless LAN 308
- Wireless Security Overview 308
- IEEE 802.1x 309
- Types of EAP Authentication 310
- Dynamic WEP Key Exchange 312
- WPA and WPA2 313
- Antenna Overview 317
- Antenna Characteristics 317
- Types of Antennas for WLAN 318
- Positioning Antennas 318
- APPENDIX B 319
- JavaScripts 322
- Java Permissions 324
- JAVA (Sun) 325
- Figure 195 Java (Sun) 326
- APPENDIX C 327
- Subnet Masks 328
- Network Size 329
- Notation 330
- Subnetting 331
- Example: Four Subnets 332
- Table 97 Subnet 1 333
- Table 98 Subnet 2 333
- Table 99 Subnet 3 333
- Table 100 Subnet 4 333
- Example: Eight Subnets 334
- Subnet Planning 334
- Configuring IP Addresses 335
- Private IP Addresses 336
- Windows 95/98/Me 337
- Installing Components 337
- Configuring 338
- Verifying Settings 339
- Windows 2000/NT/XP 340
- Macintosh OS 8/9 344
- Macintosh OS X 346
- APPENDIX D 349
- Auto Configuration by DHCP 350
- Configuration Via SNMP 350
- Configuration File Format 351
- APPENDIX E 357
- Logging in 358
- Command Conventions 358
- Copy and Paste Commands 360
- Saving Your Configuration 361
- Logging Out 361
- APPENDIX F 363
- ZyXEL Limited Warranty 365
- Registration 366
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