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Chapter 38 Filter Configuration
ZyWALL 2 Plus User’s Guide
543
Figure 368 Filter Rule Process
You can apply up to four filter sets to a particular port to block multiple types of packets. With
each filter set having up to six rules, you can have a maximum of 24 rules active for a single
port.
- ZyWALL 2 Plus 1
- About This User's Guide 3
- Document Conventions 4
- Icons Used in Figures 5
- Safety Warnings 6
- Contents Overview 7
- Chapter 3 10
- Chapter 4 10
- Chapter 12 13
- Chapter 13 13
- Chapter 14 14
- Chapter 15 14
- Chapter 16 15
- Chapter 17 15
- Chapter 21 17
- Chapter 25 19
- Chapter 26 19
- Chapter 41 23
- Chapter 42 23
- Table of Contents 25
- Table of Contents 26
- List of Figures 27
- List of Tables 39
- Introduction and 45
- Registration 45
- CHAPTER 1 47
- 1.2.2 VPN Application 48
- 1.5 LEDs 49
- CHAPTER 2 51
- 2.3 Resetting the ZyWALL 53
- 2.4.1 Title Bar 54
- 2.4.2 Main Window 55
- 2.4.5 Navigation Panel 60
- Table 6 Screens Summary 61
- 2.4.6 Port Statistics 64
- 2.4.7 DHCP Table Screen 65
- 2.4.8 VPN Status 66
- 2.4.9 Bandwidth Monitor 67
- CHAPTER 3 69
- 3.2 Internet Access 70
- 3.2.1.2 PPPoE Encapsulation 71
- Chapter 3 Wizard Setup 72
- Chapter 3 Wizard Setup 73
- CHAPTER 4 89
- 3 Click the insert icon 94
- 6 Click ADVANCED > DNS 99
- Click Apply 99
- Chapter 4 Tutorials 100
- ZyWALL 2 Plus User’s Guide 100
- Chapter 4 Tutorials 101
- 2 Select Active 122
- 4 Click Apply 122
- CHAPTER 5 127
- 5.2 Registration 128
- 5.3 Service 129
- Chapter 5 Registration 130
- LAN Screens (133) 131
- Bridge Screens (145) 131
- WAN Screens (151) 131
- DMZ Screens (171) 131
- Wireless LAN (181) 131
- CHAPTER 6 133
- 6.2.1 Private IP Addresses 134
- 6.3 DHCP 135
- 6.4 RIP Setup 135
- 6.5 Multicast 135
- 6.6 WINS 136
- 6.7 LAN 136
- Chapter 6 LAN Screens 137
- Figure 92 NETWORK > LAN 137
- Table 22 NETWORK > LAN 137
- Chapter 6 LAN Screens 138
- 6.8 LAN Static DHCP 139
- 6.9 LAN IP Alias 140
- 6.10 LAN Port Roles 142
- CHAPTER 7 145
- 7.2.1 Rapid STP 146
- 7.2.2 STP Terminology 146
- 7.2.3 How STP Works 146
- 7.3 Bridge 147
- Chapter 7 Bridge Screens 148
- 7.4 Bridge Port Roles 149
- CHAPTER 8 151
- Chapter 8 WAN Screens 152
- Chapter 8 WAN Screens 153
- 8.6 WAN MAC Address 154
- 8.7 WAN 154
- 8.7.2 PPPoE Encapsulation 157
- 8.7.3 PPTP Encapsulation 160
- 8.8 Traffic Redirect 163
- 8.10 Configuring Dial Backup 165
- 8.11 Advanced Modem Setup 168
- 8.11.3 Response Strings 169
- CHAPTER 9 171
- DMZ are on separate subnets 172
- Chapter 9 DMZ Screens 173
- 9.3 DMZ Static DHCP 174
- 9.4 DMZ IP Alias 175
- 9.7 DMZ Port Roles 178
- Chapter 9 DMZ Screens 180
- CHAPTER 10 181
- Chapter 10 Wireless LAN 183
- 10.3 WLAN Static DHCP 184
- 10.4 WLAN IP Alias 185
- Chapter 10 Wireless LAN 186
- 10.5 WLAN Port Roles 187
- PART III 189
- CHAPTER 11 191
- 11.2 Packet Direction Matrix 192
- Chapter 11 Firewall 193
- Chapter 11 Firewall 194
- 11.4 Security Considerations 199
- 11.5 Firewall Rules Example 200
- 11.6 Asymmetrical Routes 201
- 11.9 Firewall Rule Summary 206
- 11.9.1 Firewall Edit Rule 208
- 11.10 Anti-Probing 211
- 11.11 Firewall Thresholds 212
- 11.12 Threshold Screen 213
- 11.13 Service 215
- 10.0.0.15 on the LAN 220
- CHAPTER 12 223
- CHAPTER 13 245
- 6 Click Submit 247
- 13.3 Web Site Submission 250
- CHAPTER 14 253
- 14.1.1 IKE SA Overview 254
- 14.2 VPN Rules (IKE) 255
- Chapter 14 IPSec VPN 256
- 14.3 IKE SA Setup 257
- Chapter 14 IPSec VPN 259
- Figure 176 VPN/NAT Example 261
- 14.4.1 SA Life Time 262
- 14.6 IPSec SA Overview 270
- 14.6.3 Active Protocol 272
- 14.6.4 Encapsulation 272
- 14.9 Network Policy Move 280
- 14.11 VPN Rules (Manual) 281
- 14.13 VPN SA Monitor 285
- 14.14 VPN Global Setting 286
- 192.168.1.0/24 287
- 0.0.0.0 287
- 14.17 Hub-and-spoke VPN 292
- CHAPTER 15 295
- 15.3 Verifying a Certificate 296
- 15.4 Configuration Summary 297
- 15.5 My Certificates 298
- Chapter 15 Certificates 299
- Chapter 15 Certificates 300
- 15.7 My Certificate Export 302
- 15.8 My Certificate Import 303
- 15.9 My Certificate Create 305
- 15.10 Trusted CAs 310
- 15.11 Trusted CA Details 312
- 15.12 Trusted CA Import 314
- 15.16 Directory Servers 320
- CHAPTER 16 323
- 16.2 Local User Database 324
- 16.3 RADIUS 326
- Advanced 329
- CHAPTER 17 331
- 17.1.2 What NAT Does 332
- 17.1.3 How NAT Works 332
- 17.1.4 NAT Application 333
- 17.1.6 NAT Mapping Types 334
- 17.2 Using NAT 335
- 17.3 NAT Overview Screen 336
- 17.4 NAT Address Mapping 337
- 17.5 Port Forwarding 340
- 17.5.4 Port Translation 341
- 17.6 Port Forwarding Screen 342
- 17.7 Port Triggering 344
- CHAPTER 18 347
- 18.2 IP Static Route 348
- Chapter 18 Static Route 349
- Chapter 18 Static Route 350
- CHAPTER 19 351
- 19.7 Scheduler 353
- 19.8 Bandwidth Borrowing 355
- 19.11 Configuring Summary 357
- Bandwidth Manager Monitor 363
- CHAPTER 20 365
- 20.4 Address Record 366
- 20.5 Name Server Record 366
- 20.6 System Screen 367
- Chapter 20 DNS 368
- Chapter 20 DNS 369
- 20.7 DNS Cache 371
- 20.8 Configure DNS Cache 371
- 20.9 Configuring DNS DHCP 372
- 20.10 Dynamic DNS 374
- ZyWALL and the DDNS server 376
- CHAPTER 21 377
- 21.2 WWW (HTTP and HTTPS) 378
- 21.3 WWW Configuration 379
- 21.4 HTTPS Example 380
- Chapter 21 Remote Management 381
- Chapter 21 Remote Management 382
- 21.4.4 Login Screen 383
- 21.5 SSH 385
- 21.6 How SSH Works 385
- 21.8 Configuring SSH 386
- 21.9.2 Example 2: Linux 388
- 21.11 Telnet 390
- 21.12 Configuring TELNET 390
- 21.13 FTP 391
- 21.14 SNMP 392
- 21.14.1 Supported MIBs 393
- 21.14.2 SNMP Traps 393
- 21.15 DNS 395
- 21.17 Configuring CNM 396
- CHAPTER 22 399
- 22.2 Configuring UPnP 400
- Chapter 22 UPnP 401
- Chapter 22 UPnP 402
- CHAPTER 23 409
- Chapter 23 Custom Application 410
- CHAPTER 24 411
- 24.2 FTP 412
- 24.3 H.323 412
- 24.4 RTP 412
- 24.5 SIP 413
- 24.6 ALG Screen 414
- Chapter 24 ALG Screen 415
- Table 131 ADVANCED > ALG 415
- Chapter 24 ALG Screen 416
- Logs and 417
- Maintenance 417
- CHAPTER 25 419
- 25.2 Log Description Example 420
- Chapter 25 Logs Screens 421
- Chapter 25 Logs Screens 422
- 25.4 Configuring Reports 425
- 25.4.1 Viewing Web Site Hits 427
- 25.4.3 Viewing Protocol/Port 428
- 25.5 Log Descriptions 430
- Table 141 System Error Logs 432
- Table 143 TCP Reset Logs 433
- Table 145 ICMP Logs 433
- Table 150 Attack Logs 435
- Table 152 IPSec Logs 437
- Table 153 IKE Logs 438
- Table 154 PKI Logs 441
- Table 156 ACL Setting Notes 442
- Table 157 ICMP Notes 443
- 25.6 Syslog Logs 445
- CHAPTER 26 447
- 26.3 Configuring Password 448
- 26.4 Time and Date 449
- Chapter 26 Maintenance 450
- Chapter 26 Maintenance 451
- 26.5.1 Resetting the Time 452
- 26.7 Transparent Firewalls 454
- 26.10 F/W Upload Screen 457
- 26.11 Backup and Restore 459
- 26.12 Restart Screen 461
- 26.13 Diagnostics 462
- CHAPTER 27 467
- 27.2.2 Entering the Password 468
- 27.3.1 Main Menu 469
- Table 170 Main Menu Summary 470
- 27.3.2 SMT Menus Overview 471
- 27.5 Resetting the ZyWALL 473
- CHAPTER 28 475
- CHAPTER 29 481
- 29.3 Dial Backup 482
- 29.5 Advanced WAN Setup 483
- [ENTER] 484
- 29.7 Editing TCP/IP Options 487
- 29.8 Editing Login Script 488
- 29.9 Remote Node Filter 489
- CHAPTER 30 491
- Chapter 30 LAN Setup 492
- Chapter 30 LAN Setup 493
- 30.4.1 IP Alias Setup 495
- CHAPTER 31 497
- Chapter 31 Internet Access 498
- Chapter 31 Internet Access 499
- 31.5 Basic Setup Complete 500
- CHAPTER 32 501
- 32.3 TCP/IP Setup 502
- 32.3.2 IP Alias Setup 503
- Chapter 32 DMZ Setup 504
- CHAPTER 33 505
- 33.1.2 IP Alias Setup 506
- Chapter 33 Wireless Setup 507
- Chapter 33 Wireless Setup 508
- CHAPTER 34 509
- Chapter 34 Remote Node Setup 510
- 34.3.2 PPPoE Encapsulation 511
- 34.3.3 PPTP Encapsulation 513
- 34.4 Edit IP 514
- Chapter 34 Remote Node Setup 515
- 34.5 Remote Node Filter 516
- 34.6 Traffic Redirect 517
- CHAPTER 35 519
- CHAPTER 36 521
- 36.2 NAT Setup 523
- Menu 15.1.255 is read-only 524
- Menu 15.1.1.1 527
- 36.4 General NAT Examples 530
- Figure 352 NAT Example 1 531
- Figure 354 NAT Example 2 532
- Figure 356 NAT Example 3 533
- One-to-One mapping types 536
- 36.5 Trigger Port Forwarding 537
- CHAPTER 37 539
- CHAPTER 38 541
- 38.3 Example Filter 550
- 38.4 Filter Types and NAT 552
- 38.5 Firewall Versus Filters 552
- 38.6 Applying a Filter 553
- 38.6.1 Applying LAN Filters 554
- 38.6.2 Applying DMZ Filters 554
- HTTP connections 555
- CHAPTER 39 557
- 39.2 SNMP Traps 558
- CHAPTER 40 559
- 40.3.1 System Information 561
- 40.4 Log and Trace 562
- 40.4.2 Syslog Logging 563
- 2 Packet triggered 565
- 3 Filter log 565
- 4 PPP log 566
- 5 Firewall log 566
- 40.5 Diagnostic 567
- 40.5.1 WAN DHCP 568
- CHAPTER 41 571
- 41.3 Backup Configuration 572
- 41.3.4 GUI-based FTP Clients 574
- 41.3.7 TFTP Command Example 575
- " WARNING! 577
- 41.5.5 TFTP File Upload 582
- CHAPTER 42 587
- 42.1.1 Command Syntax 588
- 42.1.2 Command Usage 588
- 42.2 Call Control Support 589
- 42.2.2 Call History 590
- 42.3 Time and Date Setting 591
- CHAPTER 43 595
- Chapter 43 Remote Management 596
- Chapter 43 Remote Management 597
- CHAPTER 44 599
- Chapter 44 Call Scheduling 600
- Chapter 44 Call Scheduling 601
- PART VII 603
- CHAPTER 45 605
- V I forgot the password 606
- FTP to upload new firmware 607
- 45.3 Internet Access 608
- I cannot access the Internet 609
- 45.5 UPnP 610
- Restart your computer 611
- 2 Restart the applications 611
- Chapter 45 Troubleshooting 612
- CHAPTER 46 613
- 46.2 Cable Pin Assignments 615
- PART VIII 619
- APPENDIX A 621
- Installing Components 622
- Configuring 623
- Windows 2000/NT/XP 624
- Macintosh OS 8/9 629
- Macintosh OS X 631
- Verifying Settings 632
- Using Configuration Files 634
- APPENDIX B 637
- JavaScripts 640
- Java Permissions 641
- Mozilla Firefox 642
- APPENDIX C 645
- Subnet Masks 646
- Notation 647
- Subnetting 648
- Example: Four Subnets 649
- Example: Eight Subnets 650
- Subnet Planning 651
- Configuring IP Addresses 652
- APPENDIX D 653
- Appendix D Common Services 654
- Appendix D Common Services 655
- APPENDIX E 657
- Figure 465 Login Screen 658
- APPENDIX F 669
- ZyXEL Limited Warranty 670
- Appendix F Legal Information 671
- Appendix F Legal Information 672
- APPENDIX G 673
- Appendix G Customer Support 674
- Appendix G Customer Support 675
- Numerics 679
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