Zyxel-communications P-660H-T Series Instrukcja Użytkownika Strona 131
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P-660H/HW-T Series User’ Guide
Chapter 10 Firewalls 130
• A range of source and destination IP addresses as well as port numbers can be specified
within one firewall rule making the firewall a better choice when complex rules are
required.
• To selectively block/allow inbound or outbound traffic between inside host/networks and
outside host/networks. Remember that filters can not distinguish traffic originating from
an inside host or an outside host by IP address.
• The firewall performs better than filtering if you need to check many rules.
• Use the firewall if you need routine e-mail reports about your system or need to be alerted
when attacks occur.
• The firewall can block specific URL traffic that might occur in the future. The URL can
be saved in an Access Control List (ACL) database.
- P-660H-T Series 1
- P-660HW-T Series 1
- Copyright 3
- Federal Communications 4
- Commission (FCC) Interference 4
- Statement 4
- Certifications 5
- Safety Warnings 6
- ZyXEL Limited Warranty 7
- Customer Support 8
- Customer Support 8 9
- 9 Customer Support 10
- Table of Contents 11
- Chapter 6 13
- Chapter 7 13
- Appendix M 24
- List of Figures 25
- 31 List of Figures 32
- List of Tables 33
- 37 List of Tables 38
- About This User's Guide 39
- Syntax Conventions 39
- Related Documentation 39
- User Guide Feedback 40
- Graphics Icons Key 40
- Introduction to DSL 41
- 41 Introduction to DSL 42
- CHAPTER 1 43
- 1.4 Front Panel LEDs 47
- 1.5 Hardware Connection 48
- CHAPTER 2 49
- 2.1.2 Resetting the Prestige 50
- 2.2 Change Login Password 53
- Table 4 Password 54
- CHAPTER 3 55
- CHAPTER 4 63
- 4.1.2 DHCP Setup 64
- 4.1.3 DNS Server Address 64
- 4.2 LAN TCP/IP 65
- 4.2.2 RIP Setup 66
- 4.2.3 Multicast 67
- 4.2.4 Any IP 67
- 4.2.4.1 How Any IP Works 68
- 4.3 Configuring LAN 69
- 69 Chapter 4 LAN Setup 70
- CHAPTER 5 71
- 5.2.3 Restricted Access 72
- 5.2.4 Hide Prestige Identity 72
- Chapter 5 Wireless LAN 72 73
- Figure 19 Wireless LAN 73
- Table 12 Wireless LAN 73
- 5.4.1 WEP Encryption 74
- Chapter 5 Wireless LAN 74 75
- Figure 21 Wireless Screen 75
- Table 13 Wireless LAN 75
- 75 Chapter 5 Wireless LAN 76
- This would lock you out 77
- 5.6 Introduction to WPA 78
- Chapter 5 Wireless LAN 78 79
- 79 Chapter 5 Wireless LAN 80
- Control field 81
- 81 Chapter 5 Wireless LAN 82
- Chapter 5 Wireless LAN 82 83
- 83 Chapter 5 Wireless LAN 84
- Chapter 5 Wireless LAN 84 85
- The screen appears as shown 86
- Chapter 5 Wireless LAN 86 87
- 5.9 Configuring RADIUS 88
- Chapter 5 Wireless LAN 88 89
- Table 20 RADIUS (continued) 89
- 89 Chapter 5 Wireless LAN 90
- CHAPTER 6 91
- 6.1.2 Multiplexing 92
- 6.1.3 VPI and VCI 92
- 6.1.4 IP Address Assignment 92
- 6.2 Metric 93
- 6.3 PPPoE Encapsulation 94
- 6.4 Traffic Shaping 94
- Chapter 6 WAN Setup 94 95
- 6.6 The Main WAN Screen 96
- 6.7 Configuring WAN Setup 96
- Chapter 6 WAN Setup 96 97
- Figure 34 WAN Setup (PPPoE) 97
- Table 22 WAN Setup 97
- 97 Chapter 6 WAN Setup 98
- 6.8 Traffic Redirect 99
- 6.9 Configuring WAN Backup 100
- Chapter 6 WAN Setup 100 101
- Figure 37 WAN Backup 101
- Table 23 WAN Backup 101
- Check WAN IP Address 102
- CHAPTER 7 103
- 7.1.2 What NAT Does 104
- 7.1.3 How NAT Works 104
- 7.1.4 NAT Application 105
- 7.1.5 NAT Mapping Types 106
- 7.3 SUA Server 107
- 7.4 Selecting the NAT Mode 108
- Figure 41 NAT Mode 109
- Table 27 NAT Mode 109
- LABEL DESCRIPTION 114
- CHAPTER 8 115
- Figure 45 Dynamic DNS 116
- Table 31 Dynamic DNS 116
- CHAPTER 9 117
- 117 Chapter 9 Time and Date 118
- Table 32 Time and Date 118
- CHAPTER 10 119
- 119 Chapter 10 Firewalls 120
- 10.4 Denial of Service 121
- 10.4.2 Types of DoS Attacks 122
- Chapter 10 Firewalls 122 123
- Figure 49 SYN Flood 123
- 10.4.2.1 ICMP Vulnerability 124
- 10.5 Stateful Inspection 125
- 125 Chapter 10 Firewalls 126
- 10.5.3 TCP Security 127
- 10.5.4 UDP/ICMP Security 128
- 10.5.5 Upper Layer Protocols 128
- 10.6.1 Security In General 129
- 10.7.1 Packet Filtering: 130
- 10.7.2 Firewall 130
- Chapter 10 Firewalls 130 131
- 131 Chapter 10 Firewalls 132
- CHAPTER 11 133
- 11.3 Rule Logic Overview 134
- 11.4 Connection Direction 135
- 11.4.2 Alerts 136
- 11.6 Rule Summary 137
- Table 38 Rule Summary 138
- Address 141
- 11.7 Customized Services 142
- 11.9 Example Firewall Rule 143
- 11.10 Predefined Services 147
- 11.11 Anti-Probing 149
- 11.12 DoS Thresholds 150
- 11.12.1 Threshold Values 151
- 11.12.2 Half-Open Sessions 151
- CHAPTER 12 155
- CHAPTER 13 159
- 13.2 Telnet 160
- 13.3 FTP 161
- 13.4 Web 161
- CHAPTER 14 163
- 14.2 UPnP and ZyXEL 164
- Table 50 Configuring UPnP 165
- Components selection box 166
- Figure 80 System Tray Icon 173
- Network 174
- CHAPTER 15 177
- 177 Chapter 15 Logs Screens 178
- Figure 85 Log Settings 178
- Table 51 Log Settings 178
- 15.3 Displaying the Logs 179
- 15.4 SMTP Error Messages 180
- 15.4.1 Example E-mail Log 181
- 181 Chapter 15 Logs Screens 182
- CHAPTER 16 183
- 16.5 Scheduler 186
- 16.7 Bandwidth Borrowing 188
- 16.9 Configuring Summary 189
- 16.11 Bandwidth Monitor 195
- CHAPTER 17 197
- 197 Chapter 17 Maintenance 198
- Figure 99 System Status 198
- Table 62 System Status 198
- 17.2.1 System Statistics 199
- 199 Chapter 17 Maintenance 200
- 17.3 DHCP Table Screen 201
- 17.4 Any IP Table Screen 202
- 17.5 Wireless Screen 202
- 17.6 Diagnostic Screens 203
- 203 Chapter 17 Maintenance 204
- 17.7 Firmware Upgrade 206
- Chapter 17 Maintenance 206 207
- Figure 108 Error Message 207
- 207 Chapter 17 Maintenance 208
- CHAPTER 18 209
- Figure 109 Login Screen 210
- Prestige 211
- ? > or 212
- 1234", and 213
- Table 73 Main Menu Summary 213
- *” for each character 214
- CHAPTER 19 215
- CHAPTER 20 219
- Press ENTER to Confirm 221
- CHAPTER 21 223
- CHAPTER 22 227
- MAC address table 228
- CHAPTER 23 231
- 23.4 IP Alias Setup 232
- 23.5 Route IP Setup 233
- Menu 4 Internet Access Setup 235
- CHAPTER 24 237
- 24.4 Remote Node Filter 243
- 24.5.3 Advance Setup Options 245
- CHAPTER 25 247
- CHAPTER 26 251
- 251 Chapter 26 Bridging Setup 252
- 253 Chapter 26 Bridging Setup 254
- CHAPTER 27 255
- 27.3 NAT Setup 257
- Menu 15.1.255 is read-only 258
- 27.3.1.3 Ordering Your Rules 260
- 27.5 General NAT Examples 262
- Figure 152 NAT Example 1 263
- Figure 154 NAT Example 2 264
- Figure 156 NAT Example 3 265
- Figure 161 NAT Example 4 268
- CHAPTER 28 271
- CHAPTER 29 273
- Len Length 277
- 29.4.1 TCP/IP Filter Rule 278
- 29.4.2 Generic Filter Rule 280
- Length= 0 281
- 29.5 Filter Types and NAT 282
- 29.6 Example Filter 282
- Table 98 Filter Sets Table 284
- 29.7.1 Ethernet Traffic 285
- 29.7.2 Remote Node Filters 285
- CHAPTER 30 287
- 30.2 Supported MIBs 288
- 30.3 SNMP Configuration 288
- 30.4 SNMP Traps 289
- CHAPTER 31 291
- 31.1.3 IEEE 802.1x 293
- CHAPTER 32 297
- 32.3 System Information 299
- 32.3.2 Console Port Speed 300
- 32.4 Log and Trace 301
- 32.4.2 Syslog and Accounting 302
- Figure 196 Syslog Example 303
- 32.5 Diagnostic 304
- CHAPTER 33 307
- 33.2 Backup Configuration 308
- 33.2.4 GUI-based FTP Clients 310
- 33.2.7 TFTP Command Example 311
- 33.3 Restore Configuration 312
- 33.4.1 Firmware File Upload 314
- 33.4.5 TFTP File Upload 316
- CHAPTER 34 319
- 34.2 Call Control Support 320
- 34.3 Time and Date Setting 321
- 34.3.1 Resetting the Time 323
- CHAPTER 35 325
- 35.4 System Timeout 327
- CHAPTER 36 329
- 36.4 IP Routing Policy Setup 330
- 36.5 Applying an IP Policy 333
- IP=0.0.0.0 336
- CHAPTER 37 339
- CHAPTER 38 343
- 38.3 Problems with the WAN 344
- Figure 224 Pop-up Blocker 346
- Figure 226 Internet Options 347
- 38.4.1.2 JavaScripts 348
- 3 Scroll down to Scripting 349
- 38.4.1.3 Java Permissions 350
- 38.4.1.3.1 JAVA (Sun) 351
- Figure 231 Java (Sun) 352
- 6 Then click the OK button 353
- Appendix A 355
- Product Specifications 355
- 355 Appendix A 356
- Table 123 Firmware 356
- Appendix A 356 357
- 357 Appendix A 358
- APPENDIX B 359
- 359 Appendix B 360
- Appendix C 361
- Installing Components 362
- Configuring 363
- Windows 2000/NT/XP 364
- Appendix C 364 365
- 365 Appendix C 366
- Appendix C 366 367
- 367 Appendix C 368
- Macintosh OS 8/9 369
- 369 Appendix C 370
- Macintosh OS X 371
- Verifying Settings 372
- Appendix C 372 373
- Using Configuration Files 374
- Appendix D 377
- IP Subnetting 377
- Subnet Masks 378
- Subnetting 378
- Example: Two Subnets 379
- 379 Appendix D 380
- Table 129 Subnet 1 380
- Table 130 Subnet 2 380
- Example: Four Subnets 381
- Example Eight Subnets 382
- Appendix D 382 383
- 383 Appendix D 384
- Appendix E 385
- Boot Commands 385
- 385 Appendix E 386
- Appendix F 387
- Command Interpreter 387
- 387 Appendix F 388
- Appendix G 389
- Firewall Commands 389
- 389 Appendix G 390
- Appendix G 390 391
- 391 Appendix G 392
- Appendix G 392 393
- 393 Appendix G 394
- Appendix H 395
- NetBIOS Filter Commands 395
- NetBIOS Filter Configuration 396
- Appendix H 396 397
- 397 Appendix H 398
- Appendix I 399
- Splitters and Microfilters 399
- Prestige With ISDN 400
- Appendix I 400 401
- 401 Appendix I 402
- Appendix J 403
- How PPPoE Works 404
- Prestige as a PPPoE Client 404
- Appendix K 405
- Wireless LANs 405
- 405 Appendix K 406
- Appendix K 406 407
- Fragmentation Threshold 408
- Preamble Type 409
- IEEE 802.1x 410
- Types of Authentication 411
- PEAP (Protected EAP) 412
- Dynamic WEP Key Exchange 412
- User Authentication 413
- Encryption 413
- Security Parameters Summary 414
- Appendix L 415
- Log Descriptions 415
- 415 Appendix L 416
- Table 144 System Error Logs 416
- Appendix L 416 417
- Table 146 TCP Reset Logs 417
- 417 Appendix L 418
- Table 148 ICMP Logs 418
- Table 149 CDR Logs 418
- Table 150 PPP Logs 418
- Appendix L 418 419
- Table 151 UPnP Logs 419
- 419 Appendix L 420
- Table 153 Attack Logs 420
- Appendix L 420 421
- Table 154 IPSec Logs 421
- Table 155 IKE Logs 421
- 421 Appendix L 422
- Appendix L 422 423
- 423 Appendix L 424
- Table 156 PKI Logs 424
- Appendix L 424 425
- 425 Appendix L 426
- Table 158 802.1X Logs 426
- Appendix L 426 427
- Table 159 ACL Setting Notes 427
- Table 160 ICMP Notes 427
- 427 Appendix L 428
- Table 161 Syslog Logs 428
- Log Commands 429
- Log Command Example 430
- APPENDIX M 431
- 433 Appendix M 434
- Appendix M 434 435
- 435 Appendix M 436
- Appendix M 436 437
- 437 Appendix M 438
- Appendix M 438 439
- 439 Appendix M 440
- Appendix M 440 441
- 441 Appendix M 442
- Appendix M 442 443
- 443 Appendix M 444
- Appendix M 444 445
- 445 Appendix M 446
- Appendix M 446 447
- 447 Appendix M 448
- Appendix M 448 449
- 449 Appendix M 450
- Appendix M 450 451
- 451 Appendix M 452
- Appendix M 452 453
- Command Examples 454
- Appendix M 454 455
- 455 Appendix M 456
- Numerics 457
- 457 Index 458
- Index 458 459
- 459 Index 460
- Index 460 461
- 461 Index 462
- Index 462 463
- 463 Index 464
- Index 464 465
- 465 Index 466
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