ZyXEL Communications P-2602HW-63C Guida Utente Pagina 180
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Prestige 2602H/HW Series User’s Guide
180 Chapter 13 Firewalls
- Prestige 2602H Series 1
- Prestige 2602HW Series 1
- Copyright 3
- Federal Communications 4
- Commission (FCC) Interference 4
- Statement 4
- Safety Warnings 6
- ZyXEL Limited Warranty 7
- Customer Support 8
- Customer Support 9 9
- 10 Customer Support 10
- Table of Contents 11
- Chapter 6 13
- Chapter 10 15
- Chapter 15 17
- Chapter 16 17
- Chapter 17 18
- 28 Table of Contents 28
- List of Figures 29
- List of Tables 37
- 42 List of Tables 42
- About This User's Guide 43
- Related Documentation 43
- User Guide Feedback 43
- Syntax Conventions 44
- Introduction to DSL 45
- Introduction to ADSL 46
- CHAPTER 1 47
- Built-in Switch 48
- High Speed Internet Access 48
- Table 3 IEEE 802.11g 52
- 1.2.1 Internet Access 53
- 1.2.5 LAN to LAN Application 55
- 1.2.6 Front Panel LEDs 56
- CHAPTER 2 59
- 2.1.2 Resetting the Prestige 60
- CHAPTER 3 65
- 66 Chapter 3 Wizard Setup 66
- Chapter 3 Wizard Setup 67 67
- 68 Chapter 3 Wizard Setup 68
- Chapter 3 Wizard Setup 69 69
- 70 Chapter 3 Wizard Setup 70
- Chapter 3 Wizard Setup 71 71
- 72 Chapter 3 Wizard Setup 72
- Chapter 3 Wizard Setup 73 73
- 74 Chapter 3 Wizard Setup 74
- Chapter 3 Wizard Setup 75 75
- 76 Chapter 3 Wizard Setup 76
- Chapter 3 Wizard Setup 77 77
- 78 Chapter 3 Wizard Setup 78
- 3.3 Password Setup 79
- 80 Chapter 3 Wizard Setup 80
- CHAPTER 4 81
- 4.2 DNS Server Address 82
- 4.4 LAN TCP/IP 83
- 4.5 LAN TCP/IP 83
- 4.5.2 RIP Setup 84
- 4.6 Any IP 85
- 4.6.1 How Any IP Works 86
- 4.7 Configuring LAN 87
- 88 Chapter 4 LAN Setup 88
- Table 17 LAN Setup 88
- 4.8 Configuring Static DHCP 89
- 90 Chapter 4 LAN Setup 90
- CHAPTER 5 91
- 5.2.3 Restricted Access 92
- 5.2.4 Hide Prestige Identity 92
- 5.3.1 WEP Encryption 93
- Figure 29 Wireless Screen 94
- Table 19 Wireless LAN 94
- 5.4 Configuring MAC Filters 95
- Table 20 MAC Address Filter 96
- 5.5 Introduction to WPA 97
- 5.8 Configuring RADIUS 106
- Table 26 RADIUS (continued) 107
- CHAPTER 6 109
- 6.1.4 IP Address Assignment 110
- 6.1.2 Multiplexing 110
- 6.1.3 VPI and VCI 110
- 6.2 Metric 111
- 6.3 PPPoE Encapsulation 112
- 6.4 Traffic Shaping 112
- 6.6 Configuring WAN Setup 113
- 114 Chapter 6 WAN Setup 114
- Figure 41 WAN Setup (PPPoE) 114
- Table 27 WAN Setup 114
- Chapter 6 WAN Setup 115 115
- 6.7 Traffic Redirect 116
- 6.8 Configuring WAN Backup 117
- IP address here 118
- Check WAN IP Address 119
- 120 Chapter 6 WAN Setup 120
- CHAPTER 7 121
- 7.1.2 What NAT Does 122
- 7.1.3 How NAT Works 122
- 7.1.4 NAT Application 123
- 7.1.5 NAT Mapping Types 123
- Table 30 NAT Mapping Types 124
- 7.3 SUA Server 125
- 7.4 Selecting the NAT Mode 126
- 7.5 Configuring SUA Server 127
- CHAPTER 8 133
- 8.2.2 SIP Call Progression 134
- 8.2.3 SIP Servers 134
- 8.2.3.1 SIP User Agent 135
- 8.2.3.2 SIP Proxy Server 135
- 8.2.3.3 SIP Redirect Server 136
- 8.3 SIP ALG 137
- 8.4 Pulse Code Modulation 137
- 8.5 Voice Coding 138
- CHAPTER 9 139
- 140 Chapter 9 Voice Screens 140
- Table 37 SIP Settings 140
- Chapter 9 Voice Screens 141 141
- 142 Chapter 9 Voice Screens 142
- 9.4 Quality of Service (QoS) 143
- 9.5 QoS Configuration 144
- 9.6 Phone 145
- 9.7 Phone Configuration 145
- 146 Chapter 9 Voice Screens 146
- Figure 59 Phone 146
- Table 40 Phone 146
- 9.8 Speed Dial 147
- 9.9 Speed Dial Configuration 147
- 148 Chapter 9 Voice Screens 148
- Figure 60 Speed Dial 148
- Table 41 Speed Dial 148
- Chapter 9 Voice Screens 149 149
- 150 Chapter 9 Voice Screens 150
- Figure 61 Lifeline 150
- Table 42 Lifeline 150
- 9.12.1 The Flash Key 151
- 152 Chapter 9 Voice Screens 152
- 9.12.3.1 USA Call Hold 153
- 9.12.3.2 USA Call Waiting 153
- 9.12.3.3 USA Call Transfer 153
- 154 Chapter 9 Voice Screens 154
- Figure 62 Phone Port Common 154
- Table 45 Voice Common 154
- Chapter 9 Voice Screens 155 155
- 156 Chapter 9 Voice Screens 156
- Table 46 Voice Call Forward 156
- Chapter 9 Voice Screens 157 157
- 158 Chapter 9 Voice Screens 158
- CHAPTER 10 159
- 10.5 Auto Firmware Upgrade 160
- CHAPTER 11 161
- Figure 64 Dynamic DNS 162
- Table 47 Dynamic DNS 162
- CHAPTER 12 163
- 164 Chapter 12 Time and Date 164
- Figure 65 Time and Date 164
- Table 49 Time and Date 164
- Chapter 12 Time and Date 165 165
- 166 Chapter 12 Time and Date 166
- CHAPTER 13 167
- 168 Chapter 13 Firewalls 168
- 13.4 Denial of Service 169
- 13.4.2 Types of DoS Attacks 170
- Chapter 13 Firewalls 171 171
- Figure 68 SYN Flood 171
- 13.4.2.1 ICMP Vulnerability 172
- 13.5 Stateful Inspection 173
- 174 Chapter 13 Firewalls 174
- 13.5.3 TCP Security 175
- 13.5.4 UDP/ICMP Security 176
- 13.5.5 Upper Layer Protocols 176
- 13.6.1 Security In General 177
- 13.7.1 Packet Filtering: 178
- 13.7.2 Firewall 178
- Chapter 13 Firewalls 179 179
- 180 Chapter 13 Firewalls 180
- CHAPTER 14 181
- 14.3 Rule Logic Overview 182
- 14.3.3.1 Action 183
- 14.3.3.2 Service 183
- 14.3.3.3 Source Address 183
- 14.3.3.4 Destination Address 183
- 14.4.1 LAN to WAN Rules 184
- 14.4.2 WAN to LAN Rules 184
- 14.4.3 Alerts 185
- 14.6 Rule Summary 186
- Table 55 Rule Summary 187
- Address 190
- 14.7 Customized Services 191
- 14.9 Example Firewall Rule 192
- 14.10 Predefined Services 196
- 14.11 Anti-Probing 198
- 14.12 DoS Thresholds 199
- 14.12.1 Threshold Values 200
- 14.12.2 Half-Open Sessions 200
- CHAPTER 15 203
- CHAPTER 16 207
- 16.1.4 VPN Applications 208
- 16.2 IPSec Architecture 209
- 16.3 Encapsulation 209
- 16.4 IPSec and NAT 210
- Table 65 VPN and NAT 211
- CHAPTER 17 213
- 17.3 My IP Address 214
- 17.4 Secure Gateway Address 215
- 17.5 VPN Summary Screen 215
- 216 Chapter 17 VPN Screens 216
- Figure 92 VPN Summary 216
- Table 67 VPN Summary 216
- 17.6 Keep Alive 217
- 17.7 Remote DNS Server 217
- 17.8 NAT Traversal 218
- 17.9 ID Type and Content 219
- VPN tunnel 220
- 17.10 Pre-Shared Key 221
- 17.11 Editing VPN Policies 221
- 222 Chapter 17 VPN Screens 222
- Figure 95 VPN IKE 222
- Chapter 17 VPN Screens 223 223
- Table 72 VPN IKE 223
- 224 Chapter 17 VPN Screens 224
- Chapter 17 VPN Screens 225 225
- 17.12 IKE Phases 226
- Chapter 17 VPN Screens 227 227
- 17.12.1 Negotiation Mode 228
- Chapter 17 VPN Screens 229 229
- 230 Chapter 17 VPN Screens 230
- 17.14 Manual Key Setup 231
- 17.15 Configuring Manual Key 232
- Chapter 17 VPN Screens 233 233
- Table 74 VPN: Manual Key 233
- 234 Chapter 17 VPN Screens 234
- 17.16 Viewing SA Monitor 235
- 236 Chapter 17 VPN Screens 236
- Figure 99 VPN: SA Monitor 236
- Table 75 VPN: SA Monitor 236
- Chapter 17 VPN Screens 237 237
- 238 Chapter 17 VPN Screens 238
- Chapter 17 VPN Screens 239 239
- 240 Chapter 17 VPN Screens 240
- CHAPTER 18 241
- 18.2 Telnet 242
- 18.3 FTP 242
- 18.4 Web 243
- CHAPTER 19 245
- 19.2 UPnP and ZyXEL 246
- Table 80 Configuring UPnP 247
- Components selection box 248
- Figure 115 System Tray Icon 255
- Network 256
- CHAPTER 20 259
- 260 Chapter 20 Logs Screens 260
- Figure 120 Log Settings 260
- Chapter 20 Logs Screens 261 261
- Table 81 Log Settings 261
- 20.3 Displaying the Logs 262
- 20.4 SMTP Error Messages 262
- 20.4.1 Example E-mail Log 263
- 264 Chapter 20 Logs Screens 264
- CHAPTER 21 265
- 21.5 Scheduler 268
- 21.7 Bandwidth Borrowing 270
- 21.8 Configuring Summary 271
- 21.9 Configuring Class Setup 273
- 21.10 Bandwidth Monitor 277
- CHAPTER 22 279
- 280 Chapter 22 Maintenance 280
- Figure 134 System Status 280
- Chapter 22 Maintenance 281 281
- Table 91 System Status 281
- 22.2.1 System Statistics 282
- 22.3 DHCP Table Screen 283
- 22.4 Any IP Table Screen 284
- 22.5 Wireless Screen 285
- 22.6 Diagnostic Screens 286
- 22.7 Firmware Screen 288
- Chapter 22 Maintenance 289 289
- Figure 143 Error Message 289
- 290 Chapter 22 Maintenance 290
- CHAPTER 23 291
- ? > or 292
- Table 100 SMT Main Menu 293
- Table 101 Main Menu Summary 293
- 23.2.2 SMT Menus Overview 294
- 1234", and 295
- *” for each character 296
- CHAPTER 24 297
- CHAPTER 25 301
- Press ENTER to Confirm 303
- CHAPTER 26 305
- CHAPTER 27 309
- MAC address table 310
- CHAPTER 28 313
- 28.4 IP Alias Setup 314
- 28.5 Route IP Setup 315
- CHAPTER 29 319
- 29.4 Remote Node Filter 325
- 29.5.3 Advance Setup Options 327
- CHAPTER 30 329
- CHAPTER 31 333
- 334 Chapter 31 Bridging Setup 334
- 336 Chapter 31 Bridging Setup 336
- CHAPTER 32 337
- 32.3 NAT Setup 339
- Menu 15.1.255 is read-only 340
- 32.3.1.3 Ordering Your Rules 341
- 32.5 General NAT Examples 344
- Figure 187 NAT Example 1 345
- Figure 189 NAT Example 2 346
- Figure 191 NAT Example 3 347
- Figure 196 NAT Example 4 350
- CHAPTER 33 353
- CHAPTER 34 355
- Filter Rule 356
- Filter Set 356
- Len Length 359
- 34.4.1 TCP/IP Filter Rule 360
- 34.4.2 Generic Filter Rule 362
- Length= 0 363
- 34.5 Filter Types and NAT 364
- 34.6 Example Filter 364
- Table 127 Filter Sets Table 366
- 34.7.1 Ethernet Traffic 367
- 34.7.2 Remote Node Filters 367
- CHAPTER 35 369
- 35.2 Supported MIBs 370
- 35.3 SNMP Configuration 370
- 35.4 SNMP Traps 371
- CHAPTER 36 373
- 36.1.3 IEEE802.1x 375
- CHAPTER 37 379
- 37.3 System Information 381
- 37.3.2 Console Port Speed 382
- 37.4 Log and Trace 383
- 37.4.2 Syslog and Accounting 384
- Figure 232 Syslog Example 385
- 37.5 Diagnostic 386
- CHAPTER 38 389
- 38.2 Backup Configuration 390
- 38.2.4 GUI-based FTP Clients 392
- 38.2.7 TFTP Command Example 393
- 38.3 Restore Configuration 394
- 38.4.1 Firmware File Upload 396
- 38.4.5 TFTP File Upload 398
- CHAPTER 39 401
- 39.2 Call Control Support 402
- 39.3 Time and Date Setting 403
- 39.3.1 Resetting the Time 404
- CHAPTER 40 407
- 40.4 System Timeout 409
- CHAPTER 41 411
- 41.4 IP Routing Policy Setup 412
- 41.5 Applying an IP Policy 415
- (192.168.1.100) 418
- CHAPTER 42 419
- CHAPTER 43 423
- 43.2 IPSec Summary Screen 424
- 43.3 IPSec Setup 426
- Menu 27.1.1 IPSec Setup 427
- 43.4 IKE Setup 430
- 43.5 Manual Setup 432
- CHAPTER 44 435
- 436 Chapter 44 SA Monitor 436
- Chapter 44 SA Monitor 437 437
- 438 Chapter 44 SA Monitor 438
- CHAPTER 45 439
- 45.3 Problems with the WAN 440
- Figure 267 Pop-up Blocker 442
- Figure 269 Internet Options 444
- 45.4.1.2 JavaScripts 445
- 3 Scroll down to Scripting 446
- 45.4.1.3 Java Permissions 447
- 45.4.1.3.1 JAVA (Sun) 448
- 45.5 Telephone Problems 449
- Appendix A 451
- Product Specifications 451
- Output Power DC 18Volts/1A 456
- Power Consumption 15W 456
- APPENDIX B 457
- Installing Components 458
- Configuring 459
- Windows 2000/NT/XP 460
- Verifying Settings 464
- Macintosh OS 8/9 465
- Macintosh OS X 466
- APPENDIX C 469
- Subnet Masks 470
- Subnetting 470
- Example: Two Subnets 471
- 472 Appendix C IP Subnetting 472
- Table 166 Subnet 1 472
- Table 167 Subnet 2 472
- Example: Four Subnets 473
- Example Eight Subnets 474
- Appendix C IP Subnetting 475 475
- 476 Appendix C IP Subnetting 476
- APPENDIX D 477
- How PPPoE Works 478
- Prestige as a PPPoE Client 478
- Appendix E 479
- Wireless LANs 479
- 480 Appendix E Wireless LANs 480
- Appendix E Wireless LANs 481 481
- Fragmentation Threshold 482
- Preamble Type 483
- IEEE 802.1x 484
- Types of Authentication 485
- PEAP (Protected EAP) 486
- Dynamic WEP Key Exchange 486
- User Authentication 487
- Encryption 487
- Security Parameters Summary 488
- APPENDIX F 489
- IP Aliasing 490
- Gateways on the WAN Side 491
- 492 Appendix F Triangle Route 492
- APPENDIX G 493
- Command Examples 516
- APPENDIX H 519
- APPENDIX I 521
- APPENDIX J 523
- 524 Appendix J Boot Commands 524
- APPENDIX K 525
- Table 191 System Error Logs 526
- Table 193 TCP Reset Logs 527
- Table 195 ICMP Logs 527
- Table 196 CDR Logs 528
- Table 197 PPP Logs 528
- Table 198 UPnP Logs 529
- Table 200 Attack Logs 529
- Table 201 802.1X Logs 530
- Table 202 ACL Setting Notes 531
- Table 203 ICMP Notes 531
- Table 204 Syslog Logs 532
- Table 205 SIP Logs 532
- Log Commands 534
- Displaying Logs 535
- Log Command Example 536
- Numerics 537
- 538 Index 538
- Index 539 539
- 540 Index 540
- Index 541 541
- 542 Index 542
- Index 543 543
- 544 Index 544
- Index 545 545
- 546 Index 546
- Index 547 547
- 548 Index 548
- Index 549 549
- 550 Index 550
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