Zyxel-communications P-660H-D Series Bedienungsanleitung Seite 111
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P-660R/H-D Series User’s Guide
Chapter 10 Firewalls 110
• 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-660R/H-D 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 11 14
- Chapter 16 16
- Chapter 17 16
- Appendix M 23
- 23 Table of Contents 24
- List of Figures 25
- List of Figures 30 31
- 31 List of Figures 32
- List of Tables 33
- About This User's Guide 37
- Syntax Conventions 37
- Related Documentation 37
- User Guide Feedback 38
- Graphics Icons Key 38
- CHAPTER 1 39
- High Speed Internet Access 40
- Firewall 40
- 1.4 Front Panel LEDs 43
- 1.5 Hardware Connection 44
- CHAPTER 2 45
- 2.1.2 Resetting the Prestige 46
- 2.2 Change Login Password 49
- CHAPTER 3 51
- CHAPTER 4 59
- LABEL DESCRIPTION 62
- CHAPTER 5 63
- 5.1.2 DHCP Setup 64
- 5.1.3 DNS Server Address 64
- 5.2 LAN TCP/IP 65
- 5.2.2 RIP Setup 66
- 5.2.3 Multicast 67
- 5.2.4 Any IP 67
- 5.2.4.1 How Any IP Works 68
- 5.3 Configuring LAN 69
- 69 Chapter 5 LAN Setup 70
- CHAPTER 6 71
- 6.1.2 Multiplexing 72
- 6.1.3 VPI and VCI 72
- 6.1.4 IP Address Assignment 72
- 6.2 Metric 73
- 6.3 PPPoE Encapsulation 74
- 6.4 Traffic Shaping 74
- 6.6 The Main WAN Screen 75
- 6.7 Configuring WAN Setup 76
- Chapter 6 WAN Setup 76 77
- Figure 24 WAN Setup (PPPoE) 77
- Table 17 WAN Setup 77
- 77 Chapter 6 WAN Setup 78
- 6.8 Traffic Redirect 79
- 6.9 Configuring WAN Backup 80
- Chapter 6 WAN Setup 80 81
- Figure 27 WAN Backup 81
- Table 18 WAN Backup 81
- Check WAN IP Address 82
- CHAPTER 7 83
- 7.1.2 What NAT Does 84
- 7.1.3 How NAT Works 84
- 7.1.4 NAT Application 85
- 7.1.5 NAT Mapping Types 85
- 7.3 SUA Server 86
- 7.4 Selecting the NAT Mode 88
- Table 22 NAT Mode 89
- CHAPTER 8 95
- Figure 35 Dynamic DNS 96
- Table 26 Dynamic DNS 96
- CHAPTER 9 97
- 97 Chapter 9 Time and Date 98
- Table 27 Time and Date 98
- CHAPTER 10 99
- 99 Chapter 10 Firewalls 100
- 10.4 Denial of Service 101
- 10.4.2 Types of DoS Attacks 102
- Chapter 10 Firewalls 102 103
- Figure 39 SYN Flood 103
- 10.4.2.1 ICMP Vulnerability 104
- 10.5 Stateful Inspection 105
- 105 Chapter 10 Firewalls 106
- 10.5.3 TCP Security 107
- 10.5.4 UDP/ICMP Security 108
- 10.5.5 Upper Layer Protocols 108
- 10.6.1 Security In General 109
- 10.7.1 Packet Filtering: 110
- 10.7.2 Firewall 110
- Chapter 10 Firewalls 110 111
- 111 Chapter 10 Firewalls 112
- CHAPTER 11 113
- 11.3 Rule Logic Overview 114
- 11.4 Connection Direction 115
- 11.4.2 Alerts 116
- 11.6 Rule Summary 117
- Table 33 Rule Summary 118
- Address 121
- 11.7 Customized Services 122
- 11.9 Example Firewall Rule 123
- 11.10 Predefined Services 127
- 11.11 Anti-Probing 129
- 11.12 DoS Thresholds 130
- 11.12.1 Threshold Values 131
- 11.12.2 Half-Open Sessions 131
- CHAPTER 12 135
- CHAPTER 13 139
- 13.2 Telnet 140
- 13.3 FTP 141
- 13.4 Web 141
- CHAPTER 14 143
- 14.2 UPnP and ZyXEL 144
- Table 45 Configuring UPnP 145
- Components selection box 146
- Figure 70 System Tray Icon 152
- Network 153
- CHAPTER 15 155
- 155 Chapter 15 Logs Screens 156
- Figure 75 Log Settings 156
- Table 46 Log Settings 156
- 15.3 Displaying the Logs 157
- 15.4 SMTP Error Messages 158
- 15.4.1 Example E-mail Log 159
- 159 Chapter 15 Logs Screens 160
- CHAPTER 16 161
- 16.7 Scheduler 163
- 16.8 Bandwidth Borrowing 166
- 16.11 Configuring Summary 168
- 16.12.1 DiffServ 170
- 16.13 Bandwidth Monitor 175
- CHAPTER 17 177
- 177 Chapter 17 Maintenance 178
- Figure 86 System Status 178
- Table 61 System Status 178
- 17.2.1 System Statistics 179
- 17.3 DHCP Table Screen 180
- 17.4 Any IP Table Screen 181
- 17.5 Diagnostic Screens 182
- Chapter 17 Maintenance 182 183
- 17.6 Firmware Upgrade 184
- Chapter 17 Maintenance 184 185
- Figure 92 Firmware Upgrade 185
- Table 67 Firmware Upgrade 185
- 185 Chapter 17 Maintenance 186
- Figure 94 Error Message 186
- CHAPTER 18 187
- Prestige 189
- ? > or 190
- CHAPTER 19 193
- CHAPTER 20 197
- Press ENTER to Confirm 199
- CHAPTER 21 201
- CHAPTER 22 205
- 22.4 IP Alias Setup 206
- 22.5 Route IP Setup 207
- Menu 4 Internet Access Setup 209
- CHAPTER 23 211
- 23.4 Remote Node Filter 217
- 23.5.3 Advance Setup Options 221
- CHAPTER 24 223
- CHAPTER 25 227
- 227 Chapter 25 Bridging Setup 228
- 229 Chapter 25 Bridging Setup 230
- CHAPTER 26 231
- 26.3 NAT Setup 233
- Menu 15.1.255 is read-only 234
- 26.3.1.3 Ordering Your Rules 236
- 26.5 General NAT Examples 238
- Figure 141 NAT Example 1 239
- Figure 143 NAT Example 2 240
- Figure 145 NAT Example 3 241
- Figure 150 NAT Example 4 244
- CHAPTER 27 247
- CHAPTER 28 249
- Len Length 253
- 28.4.1 TCP/IP Filter Rule 254
- 28.4.2 Generic Filter Rule 256
- Length= 0 257
- 28.5 Filter Types and NAT 258
- 28.6 Example Filter 258
- Table 93 Filter Sets Table 260
- 28.7.1 Ethernet Traffic 261
- 28.7.2 Remote Node Filters 261
- CHAPTER 29 263
- 29.2 Supported MIBs 264
- 29.3 SNMP Configuration 264
- 29.4 SNMP Traps 265
- CHAPTER 30 267
- 30.3 System Information 269
- 30.3.2 Console Port Speed 270
- 30.4 Log and Trace 271
- 30.4.2 Syslog and Accounting 272
- Figure 179 Syslog Example 273
- 30.5 Diagnostic 274
- CHAPTER 31 277
- 31.2 Backup Configuration 278
- 31.2.4 GUI-based FTP Clients 280
- 31.2.7 TFTP Command Example 281
- 31.3 Restore Configuration 282
- 31.4.1 Firmware File Upload 284
- 31.4.5 TFTP File Upload 286
- CHAPTER 32 289
- 32.2 Call Control Support 290
- 32.3 Time and Date Setting 291
- 32.3.1 Resetting the Time 292
- CHAPTER 33 295
- 33.4 System Timeout 297
- CHAPTER 34 299
- 34.4 IP Routing Policy Setup 300
- 34.5 Applying an IP Policy 303
- IP=0.0.0.0 306
- CHAPTER 35 309
- CHAPTER 36 313
- 36.3 Problems with the WAN 314
- Figure 207 Pop-up Blocker 316
- Figure 209 Internet Options 317
- 36.4.1.2 JavaScripts 318
- 3 Scroll down to Scripting 319
- 36.4.1.3 Java Permissions 320
- 36.4.1.3.1 JAVA (Sun) 321
- Figure 214 Java (Sun) 322
- 6 Then click the OK button 323
- Appendix A 325
- Product Specifications 325
- Table 115 Firmware 326
- Appendix B 329
- About ADSL 329
- 329 Appendix B About ADSL 330
- Appendix C 331
- Virtual Circuit Topology 331
- Appendix D 333
- Wall-mounting Instructions 333
- Appendix E 335
- Installing Components 336
- Configuring 337
- Windows 2000/NT/XP 338
- Macintosh OS 8/9 343
- Macintosh OS X 345
- Verifying Settings 346
- Using Configuration Files 348
- Appendix F 351
- IP Subnetting 351
- Subnet Masks 352
- Subnetting 352
- Example: Two Subnets 353
- 353 Appendix F IP Subnetting 354
- Table 121 Subnet 1 354
- Table 122 Subnet 2 354
- Example: Four Subnets 355
- Example Eight Subnets 356
- Appendix F IP Subnetting 356 357
- 357 Appendix F IP Subnetting 358
- Appendix G 359
- Boot Commands 359
- 359 Appendix G Boot Commands 360
- Appendix H 361
- Command Interpreter 361
- Appendix I 363
- Firewall Commands 363
- Appendix J 369
- Splitters and Microfilters 369
- Prestige With ISDN 370
- Appendix K 371
- How PPPoE Works 372
- Prestige as a PPPoE Client 372
- Appendix L 373
- Internal SPTGEN 373
- Command Examples 396
- Log Descriptions 397
- Table 143 System Error Logs 398
- Table 145 TCP Reset Logs 399
- Table 147 ICMP Logs 400
- Table 148 CDR Logs 400
- Table 149 PPP Logs 400
- Table 150 UPnP Logs 401
- Table 152 Attack Logs 402
- Table 153 IPSec Logs 403
- Table 154 IKE Logs 403
- Table 155 PKI Logs 406
- Table 157 802.1X Logs 408
- Table 158 ACL Setting Notes 409
- Table 159 ICMP Notes 409
- Table 160 Syslog Logs 410
- Log Commands 411
- Log Command Example 412
- Numerics 413
- 413 Index 414
- Index 414 415
- 415 Index 416
- Index 416 417
- 417 Index 418
- Index 418 419
- 419 Index 420
- Index 420 421
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