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P-793H User’s Guide
Chapter 30 Filter Configuration 301
Figure 182 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.
30.2 Configuring a Filter Set
The ZyXEL Device includes filtering for NetBIOS over TCP/IP packets by default. To
configure another filter set, follow the procedure below.
- User’s Guide 1
- Copyright 3
- Certifications 4
- Safety Warnings 5
- 6 Safety Warnings 6
- ZyXEL Limited Warranty 7
- Customer Support 8
- Customer Support 9 9
- P-793H User’s Guide 10
- 10 Customer Support 10
- Table of Contents 11
- Chapter 4 12
- Chapter 5 12
- Chapter 6 13
- Chapter 7 13
- Chapter 8 14
- Chapter 9 14
- Chapter 10 15
- Chapter 11 15
- 24 Table of Contents 24
- List of Figures 25
- 32 List of Figures 32
- List of Tables 33
- 38 List of Tables 38
- About This User's Guide 39
- Syntax Conventions 39
- Related Documentation 39
- User Guide Feedback 40
- Graphics Icons Key 40
- CHAPTER 1 41
- 1.2 LEDs 42
- Figure 3 LEDs 43
- Table 1 LEDs 43
- CHAPTER 2 45
- Figure 4 Login Screen 46
- Figure 6 Select a Mode 47
- 2.4 Status Screen 50
- Figure 8 Status 51
- Table 3 Status 51
- Table 3 Status (continued) 52
- 2.4.3 Status: VPN Status 54
- 2.5.1 Using the Reset Button 54
- CHAPTER 3 55
- 3.1 Internet Setup Wizard 56
- 3.1.2 Screen 2 57
- 58 Chapter 3 Wizards 58
- Chapter 3 Wizards 59 59
- 3.1.3 Screen 3 60
- Chapter 3 Wizards 61 61
- 62 Chapter 3 Wizards 62
- 3.2.1 Screen 1 63
- 3.2.2 Screen 2 63
- 3.2.3 Screen 3 64
- Chapter 3 Wizards 65 65
- 66 Chapter 3 Wizards 66
- CHAPTER 4 67
- 4.2.1 Set up the Server 68
- 4.2.2 Set up the Client 68
- CHAPTER 5 71
- 5.1.2 Multiplexing 72
- 5.1.3 VPI and VCI 72
- 5.1.4 IP Address Assignment 73
- 5.1.6 NAT 73
- 5.2 Metric 74
- 5.3 Traffic Shaping 74
- 5.3.1 ATM Traffic Classes 75
- 5.4 Internet Connection 76
- Chapter 5 WAN Setup 77 77
- 78 Chapter 5 WAN Setup 78
- Chapter 5 WAN Setup 79 79
- 80 Chapter 5 WAN Setup 80
- 5.5.1 More Connections Edit 81
- 82 Chapter 5 WAN Setup 82
- Chapter 5 WAN Setup 83 83
- 84 Chapter 5 WAN Setup 84
- 5.6 Traffic Redirect 85
- 5.7 Dial Backup Interface 86
- Chapter 5 WAN Setup 87 87
- Check WAN IP Address 88
- 5.8.1 Advanced Backup Setup 89
- 90 Chapter 5 WAN Setup 90
- Chapter 5 WAN Setup 91 91
- 92 Chapter 5 WAN Setup 92
- Chapter 5 WAN Setup 93 93
- 94 Chapter 5 WAN Setup 94
- CHAPTER 6 95
- 6.1.2 DHCP Setup 96
- 6.1.3 DNS Server Address 96
- 6.2 LAN TCP/IP 97
- 6.2.2 RIP Setup 98
- 6.3 Configuring LAN IP 99
- 100 Chapter 6 LAN Setup 100
- Figure 34 LAN > IP 100
- Table 23 LAN > IP 100
- 6.4 DHCP Setup 101
- 102 Chapter 6 LAN Setup 102
- 6.5 LAN Client List 103
- 6.6 LAN IP Alias 104
- Chapter 6 LAN Setup 105 105
- Figure 39 LAN > IP Alias 105
- Table 27 LAN > IP Alias 105
- 106 Chapter 6 LAN Setup 106
- CHAPTER 7 107
- 7.1.2 What NAT Does 108
- 7.1.3 How NAT Works 108
- 7.1.4 NAT Application 109
- 7.1.5 NAT Mapping Types 109
- 7.3 NAT General Setup 110
- 7.4 Port Forwarding 111
- 7.6 Address Mapping 115
- CHAPTER 8 119
- 120 Chapter 8 Firewalls 120
- 8.4 Denial of Service 121
- 8.4.2 Types of DoS Attacks 122
- Chapter 8 Firewalls 123 123
- Figure 50 SYN Flood 123
- 8.4.2.1 ICMP Vulnerability 124
- 8.5 Stateful Inspection 125
- 126 Chapter 8 Firewalls 126
- 8.5.3 TCP Security 127
- 8.5.4 UDP/ICMP Security 127
- 8.5.5 Upper Layer Protocols 128
- 8.6.1 Security In General 128
- 8.7.1 Packet Filtering 129
- 8.7.2 Firewall 130
- CHAPTER 9 131
- 9.3 Rule Logic Overview 132
- 9.4 Connection Direction 133
- 9.5 Triangle Route 134
- Figure 55 IP Alias 135
- 9.7 Firewall Rules Summary 137
- 9.7.2 Customized Services 141
- 9.8 Example Firewall Rule 142
- 10.0.0.15 on the LAN 145
- 9.9 Anti-Probing 146
- 9.10 DoS Thresholds 147
- 9.10.2 Half-Open Sessions 148
- CHAPTER 10 151
- CHAPTER 11 155
- 11.1.1 IKE SA Overview 156
- 11.1.1.2 IKE SA Proposal 157
- 11.1.1.4 Authentication 158
- 11.1.2.1 Negotiation Mode 159
- 11.1.3 IPSec SA Overview 160
- 11.1.3.2 Active Protocol 161
- 11.1.3.3 Encapsulation 161
- 162 Chapter 11 IPSec VPN 162
- 11.2 VPN Setup Screen 163
- 164 Chapter 11 IPSec VPN 164
- Figure 78 VPN > Setup 164
- Table 50 VPN > Setup 164
- 11.3 Editing VPN Policies 165
- 166 Chapter 11 IPSec VPN 166
- Chapter 11 IPSec VPN 167 167
- 168 Chapter 11 IPSec VPN 168
- Chapter 11 IPSec VPN 169 169
- 170 Chapter 11 IPSec VPN 170
- Chapter 11 IPSec VPN 171 171
- 172 Chapter 11 IPSec VPN 172
- 11.5 Configuring Manual Key 173
- 174 Chapter 11 IPSec VPN 174
- Chapter 11 IPSec VPN 175 175
- 11.6 Viewing SA Monitor 176
- Chapter 11 IPSec VPN 177 177
- Figure 82 VPN > Monitor 177
- Table 54 VPN > Monitor 177
- 178 Chapter 11 IPSec VPN 178
- Chapter 11 IPSec VPN 179 179
- 180 Chapter 11 IPSec VPN 180
- Chapter 11 IPSec VPN 181 181
- 182 Chapter 11 IPSec VPN 182
- CHAPTER 12 183
- 12.2.1 Static Route Edit 184
- Chapter 12 Static Route 185 185
- 186 Chapter 12 Static Route 186
- CHAPTER 13 187
- 13.5 Scheduler 188
- 13.7 Configuring Summary 192
- 13.8.1 Rule Configuration 194
- 13.9 Bandwidth Monitor 197
- CHAPTER 14 199
- Device and the DDNS server 201
- CHAPTER 15 203
- 15.2 WWW 204
- 15.3 Telnet 205
- 15.4 Configuring Telnet 205
- 15.5 Configuring FTP 206
- 15.6 SNMP 207
- 15.6.1 Supported MIBs 208
- 15.6.2 SNMP Traps 208
- 15.6.3 Configuring SNMP 209
- 15.7 Configuring DNS 210
- 15.8 Configuring ICMP 211
- 15.9 TR-069 212
- Figure 103 Enabling TR-069 213
- Table 78 TR-069 Commands 213
- CHAPTER 16 215
- 16.2 UPnP and ZyXEL 216
- Table 79 UPnP > General 217
- Components selection box 218
- Figure 114 System Tray Icon 222
- Network 224
- CHAPTER 17 227
- 228 Chapter 17 System 228
- 17.2 Time Setting 229
- 230 Chapter 17 System 230
- Chapter 17 System 231 231
- 232 Chapter 17 System 232
- CHAPTER 18 233
- 234 Chapter 18 Logs 234
- Table 82 Logs > View Log 234
- Chapter 18 Logs 235 235
- 236 Chapter 18 Logs 236
- CHAPTER 19 237
- 238 Chapter 19 Tools 238
- 19.2 Configuration 239
- 240 Chapter 19 Tools 240
- 19.3 Restart 241
- 242 Chapter 19 Tools 242
- CHAPTER 20 243
- CHAPTER 21 245
- 21.2 SMT Menu Items 246
- Table 88 Main Menu Summary 247
- Table 89 SMT Menus Overview 247
- Table 90 Main Menu Commands 248
- CHAPTER 22 251
- 252 Chapter 22 General Setup 252
- 254 Chapter 22 General Setup 254
- CHAPTER 23 255
- 256 Chapter 23 WAN Setup 256
- 23.3 Dial Backup Interface 257
- 258 Chapter 23 WAN Setup 258
- Chapter 23 WAN Setup 259 259
- 260 Chapter 23 WAN Setup 260
- CHAPTER 24 261
- 262 Chapter 24 LAN Setup 262
- Chapter 24 LAN Setup 263 263
- None after you save your 263
- 24.4 LAN IP Alias 264
- 24.4.1 Port-based VLAN Setup 265
- 266 Chapter 24 LAN Setup 266
- CHAPTER 25 267
- CHAPTER 26 269
- Yes. Press [ENTER] 273
- 26.5 Remote Node Filter 275
- 26.7 Advance Setup Options 278
- CHAPTER 27 279
- CHAPTER 28 283
- 284 Chapter 28 NAT Setup 284
- 28.2 NAT Setup 285
- SUA and are read-only 286
- Chapter 28 NAT Setup 287 287
- 288 Chapter 28 NAT Setup 288
- Chapter 28 NAT Setup 289 289
- 28.4 General NAT Examples 290
- Chapter 28 NAT Setup 291 291
- Figure 169 NAT Example 2 291
- 292 Chapter 28 NAT Setup 292
- Chapter 28 NAT Setup 293 293
- Figure 171 NAT Example 3 293
- 2 Enter 2 to go to menu 15.2 294
- Chapter 28 NAT Setup 295 295
- Figure 176 NAT Example 4 295
- 296 Chapter 28 NAT Setup 296
- CHAPTER 29 297
- 298 Chapter 29 Firewall Setup 298
- CHAPTER 30 299
- 30.3 Example Filter 309
- 30.4 Filter Types and NAT 311
- 30.5 Firewall Versus Filters 311
- 30.6 Applying a Filter 311
- 30.6.1 Applying LAN Filters 312
- CHAPTER 31 313
- CHAPTER 32 315
- CHAPTER 33 317
- 33.3.1 System Information 319
- 33.3.2 Console Port Speed 320
- 33.4 Log and Trace 321
- 33.4.2 Syslog Logging 322
- 2 Packet triggered 323
- 3 Filter log 323
- 4 PPP log 324
- 5 Firewall log 324
- 33.5 Diagnostic 325
- CHAPTER 34 327
- 34.3 Backup Configuration 328
- 34.3.4 GUI-based FTP Clients 330
- 34.3.7 TFTP Command Example 331
- 34.4 Restore Configuration 333
- 34.5.1 Firmware File Upload 335
- 34.5.5 TFTP File Upload 337
- CHAPTER 35 341
- 35.2 Call Control Support 342
- 35.2.1 Budget Management 343
- 35.3 Time and Date Setting 344
- 35.4 Remote Management 346
- CHAPTER 36 349
- 36.4 IP Routing Policy Setup 350
- 36.5 IP Routing Policy Setup 350
- 36.6 IP Routing Policy 352
- (192.168.1.100) 355
- CHAPTER 37 357
- 37.3 Schedule Set Setup 358
- Chapter 37 Schedule Setup 359 359
- 360 Chapter 37 Schedule Setup 360
- CHAPTER 38 361
- 38.3 Problems with the WAN 362
- Appendix A 365
- Product Specifications 365
- APPENDIX B 367
- Appendix C 369
- Installing Components 370
- Configuring 370
- 4 Click the Gateway tab 371
- Windows 2000/NT/XP 372
- Properties 373
- Macintosh OS X 377
- Verifying Settings 379
- Using Configuration Files 381
- APPENDIX D 383
- Figure 263 Internet Options 384
- Figure 264 Internet Options 385
- JavaScripts 386
- Java Permissions 387
- JAVA (Sun) 388
- APPENDIX E 389
- 390 Appendix E Services 390
- Appendix E Services 391 391
- 392 Appendix E Services 392
- Appendix F 393
- IP Addresses and Subnetting 393
- Subnet Masks 395
- Subnetting 395
- Example: Two Subnets 396
- Example: Four Subnets 397
- Example Eight Subnets 399
- Appendix G 401
- Command Interpreter 401
- Appendix H 403
- Firewall Commands 403
- Appendix I 409
- NetBIOS Filter Commands 409
- NetBIOS Filter Configuration 410
- Appendix J 411
- Log Descriptions 411
- Table 157 System Error Logs 412
- Table 159 TCP Reset Logs 413
- Table 161 ICMP Logs 414
- Table 162 CDR Logs 414
- Table 163 PPP Logs 414
- Table 164 UPnP Logs 415
- Table 166 Attack Logs 416
- Table 167 IPSec Logs 417
- Table 168 IKE Logs 417
- Table 169 PKI Logs 420
- Table 171 802.1X Logs 422
- Table 172 ACL Setting Notes 423
- Table 173 ICMP Notes 423
- Table 174 Syslog Logs 424
- Log Commands 425
- Log Command Example 426
- Index 427 427
- 428 Index 428
- Index 429 429
- 430 Index 430
- Index 431 431
- 432 Index 432
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