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P-660H/HW/W-T Series User’ Guide
Appendix K 406
Table 143 TCP Reset Logs
LOG MESSAGE DESCRIPTION
Under SYN flood attack,
sent TCP RST
The router sent a TCP reset packet when a host was under a SYN
flood attack (the TCP incomplete count is per destination host.)
Exceed TCP MAX
incomplete, sent TCP RST
The router sent a TCP reset packet when the number of TCP
incomplete connections exceeded the user configured threshold.
(the TCP incomplete count is per destination host.) Note: Refer to
TCP Maximum Incomplete in the Firewall Attack Alerts screen.
Peer TCP state out of
order, sent TCP RST
The router sent a TCP reset packet when a TCP connection state
was out of order.Note: The firewall refers to RFC793 Figure 6 to
check the TCP state.
Firewall session time
out, sent TCP RST
The router sent a TCP reset packet when a dynamic firewall
session timed out.
The default timeout values are as follows:
ICMP idle timeout: 3 minutes
UDP idle timeout: 3 minutes
TCP connection (three way handshaking) timeout: 270 seconds
TCP FIN-wait timeout: 2 MSL (Maximum Segment Lifetime set in
the TCP header).
TCP idle (established) timeout (s): 150 minutes
TCP reset timeout: 10 seconds
Exceed MAX incomplete,
sent TCP RST
The router sent a TCP reset packet when the number of
incomplete connections (TCP and UDP) exceeded the user-
configured threshold. (Incomplete count is for all TCP and UDP
connections through the firewall.)Note: When the number of
incomplete connections (TCP + UDP) > “Maximum Incomplete
High”, the router sends TCP RST packets for TCP connections
and destroys TOS (firewall dynamic sessions) until incomplete
connections < “Maximum Incomplete Low”.
Access block, sent TCP
RST
The router sends a TCP RST packet and generates this log if you
turn on the firewall TCP reset mechanism (via CI command: "sys
firewall tcprst").
Table 144 Packet Filter Logs
LOG MESSAGE DESCRIPTION
[TCP | UDP | ICMP | IGMP |
Generic] packet filter
matched (set:%d, rule:%d)
Attempted access matched a configured filter rule (denoted by
its set and rule number) and was blocked or forwarded
according to the rule.
- P-660H/HW/W-T Series 1
- Copyright 2
- Federal Communications 3
- Commission (FCC) Interference 3
- Statement 3
- Certifications 4
- Safety Warnings 5
- ZyXEL Limited Warranty 6
- Customer Support 7
- Customer Support 8 8
- 9 Customer Support 9
- Table of Contents 10
- Chapter 6 12
- Chapter 7 12
- Appendix M 23
- List of Figures 24
- 31 List of Figures 31
- List of Tables 32
- 37 List of Tables 37
- About This User's Guide 38
- Syntax Conventions 38
- Related Documentation 38
- User Guide Feedback 39
- Graphics Icons Key 39
- Introduction to DSL 40
- 41 Introduction to DSL 41
- CHAPTER 1 42
- 1.4 Front Panel LEDs 46
- 1.5 Hardware Connection 47
- CHAPTER 2 48
- 2.1.2 Resetting the Prestige 49
- 2.2 Change Login Password 52
- Table 4 Password 53
- CHAPTER 3 54
- CHAPTER 4 62
- 4.1.2 DHCP Setup 63
- 4.1.3 DNS Server Address 63
- 4.2 LAN TCP/IP 64
- 4.2.2 RIP Setup 65
- 4.2.3 Multicast 66
- 4.2.4 Any IP 66
- 4.2.4.1 How Any IP Works 67
- 4.3 Configuring LAN 68
- 69 Chapter 4 LAN Setup 69
- CHAPTER 5 70
- 5.2.3 Restricted Access 71
- 5.2.4 Hide Prestige Identity 71
- Chapter 5 Wireless LAN 72 72
- Figure 18 Wireless LAN 72
- Table 12 Wireless LAN 72
- 5.4.1 WEP Encryption 73
- Chapter 5 Wireless LAN 74 74
- Figure 20 Wireless Screen 74
- Table 13 Wireless LAN 74
- 75 Chapter 5 Wireless LAN 75
- This would lock you out 76
- 5.6 Introduction to WPA 77
- Chapter 5 Wireless LAN 78 78
- 79 Chapter 5 Wireless LAN 79
- Control field 80
- 81 Chapter 5 Wireless LAN 81
- Chapter 5 Wireless LAN 82 82
- 83 Chapter 5 Wireless LAN 83
- Chapter 5 Wireless LAN 84 84
- The screen appears as shown 85
- Chapter 5 Wireless LAN 86 86
- 5.9 Configuring RADIUS 87
- Chapter 5 Wireless LAN 88 88
- Table 20 RADIUS (continued) 88
- 89 Chapter 5 Wireless LAN 89
- CHAPTER 6 90
- 6.1.2 Multiplexing 91
- 6.1.3 VPI and VCI 91
- 6.1.4 IP Address Assignment 91
- 6.2 Metric 92
- 6.3 PPPoE Encapsulation 93
- 6.4 Traffic Shaping 93
- Chapter 6 WAN Setup 94 94
- 6.6 The Main WAN Screen 95
- 6.7 Configuring WAN Setup 95
- Chapter 6 WAN Setup 96 96
- Figure 33 WAN Setup (PPPoE) 96
- Table 22 WAN Setup 96
- 97 Chapter 6 WAN Setup 97
- 6.8 Traffic Redirect 98
- 6.9 Configuring WAN Backup 99
- Chapter 6 WAN Setup 100 100
- Figure 36 WAN Backup 100
- Table 23 WAN Backup 100
- Check WAN IP Address 101
- CHAPTER 7 102
- 7.1.2 What NAT Does 103
- 7.1.3 How NAT Works 103
- 7.1.4 NAT Application 104
- 7.1.5 NAT Mapping Types 105
- 7.3 SUA Server 106
- 7.4 Selecting the NAT Mode 107
- Figure 40 NAT Mode 108
- Table 27 NAT Mode 108
- LABEL DESCRIPTION 113
- CHAPTER 8 114
- Figure 44 Dynamic DNS 115
- Table 31 Dynamic DNS 115
- CHAPTER 9 116
- 117 Chapter 9 Time and Date 117
- Table 32 Time and Date 117
- CHAPTER 10 118
- 119 Chapter 10 Firewalls 119
- 10.4 Denial of Service 120
- 10.4.2 Types of DoS Attacks 121
- Chapter 10 Firewalls 122 122
- Figure 48 SYN Flood 122
- 10.4.2.1 ICMP Vulnerability 123
- 10.5 Stateful Inspection 124
- 125 Chapter 10 Firewalls 125
- 10.5.3 TCP Security 126
- 10.5.4 UDP/ICMP Security 127
- 10.5.5 Upper Layer Protocols 127
- 10.6.1 Security In General 128
- 10.7.1 Packet Filtering: 129
- 10.7.2 Firewall 129
- Chapter 10 Firewalls 130 130
- 131 Chapter 10 Firewalls 131
- CHAPTER 11 132
- 11.3 Rule Logic Overview 133
- 11.4 Connection Direction 134
- 11.4.2 Alerts 135
- 11.6 Rule Summary 136
- Table 38 Rule Summary 137
- Address 140
- 11.7 Customized Services 141
- 11.9 Example Firewall Rule 142
- 11.10 Predefined Services 146
- 11.11 Anti-Probing 148
- 11.12 DoS Thresholds 149
- 11.12.1 Threshold Values 150
- 11.12.2 Half-Open Sessions 150
- CHAPTER 12 154
- CHAPTER 13 158
- 13.2 Telnet 159
- 13.3 FTP 160
- 13.4 Web 160
- CHAPTER 14 162
- 14.2 UPnP and ZyXEL 163
- Table 50 Configuring UPnP 164
- Components selection box 165
- Figure 79 System Tray Icon 172
- Network 173
- CHAPTER 15 176
- 177 Chapter 15 Logs Screens 177
- Figure 84 Log Settings 177
- Table 51 Log Settings 177
- 15.3 Displaying the Logs 178
- 15.4 SMTP Error Messages 179
- 15.4.1 Example E-mail Log 180
- 181 Chapter 15 Logs Screens 181
- CHAPTER 16 182
- 16.5 Scheduler 185
- 16.7 Bandwidth Borrowing 187
- 16.9 Configuring Summary 188
- 16.11 Bandwidth Monitor 194
- CHAPTER 17 196
- 197 Chapter 17 Maintenance 197
- Figure 98 System Status 197
- Table 62 System Status 197
- 17.2.1 System Statistics 198
- 199 Chapter 17 Maintenance 199
- 17.3 DHCP Table Screen 200
- 17.4 Any IP Table Screen 201
- 17.5 Wireless Screen 201
- 17.6 Diagnostic Screens 202
- 203 Chapter 17 Maintenance 203
- 17.7 Firmware Upgrade 205
- Chapter 17 Maintenance 206 206
- Figure 107 Error Message 206
- 207 Chapter 17 Maintenance 207
- CHAPTER 18 208
- Figure 108 Login Screen 209
- Prestige 210
- ? > or 211
- 1234", and 212
- Table 73 Main Menu Summary 212
- *” for each character 213
- CHAPTER 19 214
- CHAPTER 20 218
- Press ENTER to Confirm 220
- CHAPTER 21 222
- CHAPTER 22 226
- MAC address table 227
- CHAPTER 23 230
- 23.4 IP Alias Setup 231
- 23.5 Route IP Setup 232
- Menu 4 Internet Access Setup 234
- CHAPTER 24 236
- 24.4 Remote Node Filter 242
- 24.5.3 Advance Setup Options 244
- CHAPTER 25 246
- CHAPTER 26 250
- 251 Chapter 26 Bridging Setup 251
- 253 Chapter 26 Bridging Setup 253
- CHAPTER 27 254
- 27.3 NAT Setup 256
- Menu 15.1.255 is read-only 257
- 27.3.1.3 Ordering Your Rules 259
- 27.5 General NAT Examples 261
- Figure 151 NAT Example 1 262
- Figure 153 NAT Example 2 263
- Figure 155 NAT Example 3 264
- Figure 160 NAT Example 4 267
- CHAPTER 28 270
- CHAPTER 29 272
- Len Length 276
- 29.4.1 TCP/IP Filter Rule 277
- 29.4.2 Generic Filter Rule 279
- Length= 0 280
- 29.5 Filter Types and NAT 281
- 29.6 Example Filter 281
- Table 98 Filter Sets Table 283
- 29.7.1 Ethernet Traffic 284
- 29.7.2 Remote Node Filters 284
- CHAPTER 30 286
- 30.2 Supported MIBs 287
- 30.3 SNMP Configuration 287
- 30.4 SNMP Traps 288
- CHAPTER 31 290
- 31.1.3 IEEE 802.1x 292
- CHAPTER 32 296
- 32.3 System Information 298
- 32.3.2 Console Port Speed 299
- 32.4 Log and Trace 300
- 32.4.2 Syslog and Accounting 301
- Figure 195 Syslog Example 302
- 32.5 Diagnostic 303
- CHAPTER 33 306
- 33.2 Backup Configuration 307
- 33.2.4 GUI-based FTP Clients 309
- 33.2.7 TFTP Command Example 310
- 33.3 Restore Configuration 311
- 33.4.1 Firmware File Upload 313
- 33.4.5 TFTP File Upload 315
- CHAPTER 34 318
- 34.2 Call Control Support 319
- 34.3 Time and Date Setting 320
- 34.3.1 Resetting the Time 322
- CHAPTER 35 324
- 35.4 System Timeout 326
- CHAPTER 36 328
- 36.4 IP Routing Policy Setup 329
- 36.5 Applying an IP Policy 332
- IP=0.0.0.0 335
- CHAPTER 37 338
- CHAPTER 38 342
- 38.3 Problems with the WAN 343
- Figure 223 Pop-up Blocker 345
- Figure 225 Internet Options 346
- 38.4.1.2 JavaScripts 347
- 3 Scroll down to Scripting 348
- 38.4.1.3 Java Permissions 349
- 38.4.1.3.1 JAVA (Sun) 350
- Figure 230 Java (Sun) 351
- 6 Then click the OK button 352
- Appendix A 354
- Product Specifications 354
- 355 Appendix A 355
- Table 123 Firmware 355
- Appendix A 356 356
- 357 Appendix A 357
- APPENDIX B 358
- 359 Appendix B 359
- Appendix C 360
- Installing Components 361
- Configuring 362
- Windows 2000/NT/XP 363
- Appendix C 364 364
- 365 Appendix C 365
- Appendix C 366 366
- 367 Appendix C 367
- Macintosh OS 8/9 368
- 369 Appendix C 369
- Macintosh OS X 370
- Verifying Settings 371
- Appendix C 372 372
- Using Configuration Files 373
- Appendix D 376
- IP Subnetting 376
- Subnet Masks 377
- Subnetting 377
- Example: Two Subnets 378
- 379 Appendix D 379
- Table 129 Subnet 1 379
- Table 130 Subnet 2 379
- Example: Four Subnets 380
- Example Eight Subnets 381
- Appendix D 382 382
- 383 Appendix D 383
- Appendix E 384
- Boot Commands 384
- 385 Appendix E 385
- Appendix F 386
- Command Interpreter 386
- 387 Appendix F 387
- Appendix G 388
- Firewall Commands 388
- 389 Appendix G 389
- Appendix G 390 390
- 391 Appendix G 391
- Appendix G 392 392
- 393 Appendix G 393
- Appendix H 394
- NetBIOS Filter Commands 394
- NetBIOS Filter Configuration 395
- Appendix H 396 396
- 397 Appendix H 397
- Appendix I 398
- Splitters and Microfilters 398
- Prestige With ISDN 399
- Appendix I 400 400
- 401 Appendix I 401
- Appendix J 402
- How PPPoE Works 403
- Prestige as a PPPoE Client 403
- Appendix K 404
- Log Descriptions 404
- 405 Appendix K 405
- Table 141 System Error Logs 405
- Appendix K 406 406
- Table 143 TCP Reset Logs 406
- 407 Appendix K 407
- Table 145 ICMP Logs 407
- Table 146 CDR Logs 407
- Table 147 PPP Logs 407
- Appendix K 408 408
- Table 148 UPnP Logs 408
- 409 Appendix K 409
- Table 150 Attack Logs 409
- Appendix K 410 410
- Table 151 IPSec Logs 410
- Table 152 IKE Logs 410
- 411 Appendix K 411
- Appendix K 412 412
- 413 Appendix K 413
- Table 153 PKI Logs 413
- Appendix K 414 414
- 415 Appendix K 415
- Table 155 802.1X Logs 415
- Appendix K 416 416
- Table 156 ACL Setting Notes 416
- Table 157 ICMP Notes 416
- 417 Appendix K 417
- Table 158 Syslog Logs 417
- Log Commands 418
- Log Command Example 419
- Appendix L 420
- Wireless LANs 420
- 421 Appendix L 421
- Appendix L 422 422
- Fragmentation Threshold 423
- Preamble Type 424
- IEEE 802.1x 425
- Types of Authentication 426
- PEAP (Protected EAP) 427
- Dynamic WEP Key Exchange 427
- User Authentication 428
- Encryption 428
- Security Parameters Summary 429
- APPENDIX M 430
- 433 Appendix M 433
- Appendix M 434 434
- 435 Appendix M 435
- Appendix M 436 436
- 437 Appendix M 437
- Appendix M 438 438
- 439 Appendix M 439
- Appendix M 440 440
- 441 Appendix M 441
- Appendix M 442 442
- 443 Appendix M 443
- Appendix M 444 444
- 445 Appendix M 445
- Appendix M 446 446
- 447 Appendix M 447
- Appendix M 448 448
- 449 Appendix M 449
- Appendix M 450 450
- 451 Appendix M 451
- Appendix M 452 452
- Command Examples 453
- Appendix M 454 454
- 455 Appendix M 455
- Numerics 456
- 457 Index 457
- Index 458 458
- 459 Index 459
- Index 460 460
- 461 Index 461
- Index 462 462
- 463 Index 463
- Index 464 464
- 465 Index 465
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