ZyXEL Communications B-5000 - Guide de l'utilisateur Page 230
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- Table des matières
- DEPANNAGE
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
ZyAIR B-5000 User’s Guide
28-2 Firewall
Figure 28-1 Firewall Tutorial Screen
28.3 Introduction to ZyXEL’s Firewall
The ZyAIR firewall is designed to protect against Denial of Service attacks. The ZyAIR’s purpose is to allow
a private Local Area Network (LAN) to be securely connected to the Internet. The ZyAIR can be used to
prevent theft, destruction and modification of data, as well as log events, which may be important to the
security of your network. The ZyAIR also has packet-filtering capabilities.
28.4 Denial of Service
Denials of Service (DoS) attacks are aimed at devices and networks with a connection to the Internet. Their
goal is not to steal information, but to disable a device or network so users no longer have access to network
resources. The ZyAIR is pre-configured to automatically detect and thwart all known DoS attacks.
- ZyAIR B-5000 1
- Copyright 2
- (FCC) Interference Statement 3
- Customer Support 5
- Table of Contents 7
- ZyAIR B-5000 User’s Guide 12
- List of Figures 13
- List of Tables 17
- Preface 19
- Part I: 21
- Chapter 1 23
- Getting to know your ZyAIR 23
- 1.1.12 SNMP 25
- Chapter 2 27
- Web Configurator Overview 27
- 2.3 Resetting the ZyAIR 31
- Chapter 3 33
- Quick Setup 33
- Chapter 4 37
- Access Point Quick Setup 37
- 4.2 Quick Setup – TCP/IP 38
- LABEL DESCRIPTION 44
- Click NEXT to continue 44
- 4.4 Quick Setup – Wireless 49
- 4.4.5 ESS ID 51
- 4.4.6 WEP Encryption 51
- Chapter 5 57
- Bridge Quick Setup 57
- 5-2 Bridge Quick Setup 58
- 5.2 Quick Setup – TCP/IP 60
- Bridge Quick Setup 5-5 61
- 5-6 Bridge Quick Setup 62
- Bridge Quick Setup 5-7 63
- 5-8 Bridge Quick Setup 64
- 5-10 Bridge Quick Setup 66
- 5-12 Bridge Quick Setup 68
- 5-14 Bridge Quick Setup 70
- 5-16 Bridge Quick Setup 72
- 5.3 Quick Setup – Wireless 73
- Bridge Quick Setup 5-19 75
- Part II: 77
- Chapter 6 79
- 6-2 System Setup 80
- Chapter 7 83
- Interface Parameters 83
- 7-2 Interface Parameters 84
- Chapter 8 87
- Configuration Parameters 87
- 8-2 Configuration Parameters 88
- Chapter 9 93
- ISP Parameters 93
- Chapter 10 97
- DHCP Parameters 97
- 10.6 DHCP Host Entry 100
- Chapter 11 103
- Server Mapping 103
- Chapter 12 107
- Wireless 107
- 12.1.3 ESS 108
- 12.2 Configuring Wireless 109
- 12.3 WEP Overview 110
- Chapter 13 115
- IEEE 802.1x, RADIUS 115
- Ethernet 116
- RADIUS Server 116
- Wireless Station 116
- 13.4 Configuring IEEE 802.1x 117
- 13.4.1 Local 802.1X User Add 119
- Chapter 14 121
- MAC Filter 121
- 14.1.1 MAC Address Pool 122
- Chapter 15 125
- Part III: 129
- Chapter 16 131
- Advanced Configuration 131
- Chapter 17 133
- Static Route 133
- Static Route 17-3 135
- 17-4 Static Route 136
- Chapter 18 137
- Bridging Parameters 137
- 18-2 Bridging Parameters 138
- Chapter 19 139
- 19.3 Supported MIBs 140
- SNMP 19-3 141
- 19-4 SNMP 142
- 19.5 SNMP Trap Overview 143
- 19.6 SNMP Trap Modify 145
- 19-8 SNMP 146
- Chapter 20 147
- Part IV: 151
- Chapter 21 153
- Configuration Scenarios 153
- Ethernet (PPPoE) 154
- Address (DHCP Client) 156
- Address (Fixed IP) 157
- 21.2.1 Configure the ZyAIR 160
- Part V: 173
- Chapter 22 175
- Utility 175
- DESCRIPTION 177
- Part VI: 183
- Chapter 23 185
- Console Port 185
- 23.3 Console Overview 187
- Chapter 24 195
- SMT Main Screen 195
- 24.3 SU Mode 197
- 24.4 System Information 197
- Chapter 25 199
- Supervisor Mode 199
- Chapter 26 203
- Command Examples 203
- Figure 26-1 Ping Test 204
- Figure 26-2 SU Setup 204
- Command Examples 26-9 211
- Figure 26-21 SU *Show 211
- 26.3 Changing Your Password 212
- Chapter 27 215
- Maintenance 215
- 27.2 Backup Configuration 216
- Then click Send 220
- 27.4 Uploading Software 221
- HyperTerminal 221
- 27.7 Resetting Your ZyAIR 224
- Part VII: 227
- Chapter 28 229
- Firewall 229
- 28.4 Denial of Service 230
- 28.4.1 Basics 231
- 28.4.2 Types of DoS Attacks 231
- 28.5 Enabling the Firewall 234
- 28.6 Firewall Access Control 235
- ZyAIR B-5000 User’s Guide 238
- 28-10 Firewall 238
- 28-12 Firewall 240
- Part VIII: 241
- Appendix A 243
- Site Planning 243
- Specific Considerations 244
- Weather 244
- Rainfall 244
- Lightning 245
- Lightning Protection 245
- Interference 245
- Temperature Ranges 245
- Types of Antennas For WLAN 247
- Antenna Polarization 247
- Path Planning 247
- Calculating a Link Budget 247
- Availability 248
- Appendix B 249
- Site Installation 249
- Grounding 250
- Antenna Alignment 250
- Connector Type 251
- Appendix C 253
- Windows 2000/NT/XP 257
- Macintosh OS 8/9 261
- Macintosh OS X 262
- Appendix D 265
- Client computer 266
- Appendix E 267
- Types of EAP Authentication 267
- Appendix F 269
- Troubleshooting 269
- Problems with the Password 270
- Problems with Telnet 271
- Appendix G 273
- Technical Specifications 273
- RADIO SPECIFICATIONS 274
- SYSTEM TEST 276
- RELIABILITY TEST 277
- Appendix H 279
- Power Specifications 279
- Appendix I 281
- Approvals 281
- Appendix J 283
- Packaging Specifications 283
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