Allied-telesis AT-S62 Manual de usuario Pagina 673
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673
Chapter 43
Denial of Service Defense
This chapter contains instructions on how to configure the Denial of
Service defense feature on the switch. The sections include:
❑ Configuring Denial of Service Attack Defense on page 674
❑ Displaying the DoS Settings on page 677
Note
For background information, refer to Denial of Service Defense
Overview on page 213. Be sure to read the overview before
implementing a DoS defense on a switch. Some defense
mechanisms are CPU intensive and can impact switch behavior.
- User’s Guide 1
- Section II 5
- Section III 6
- Section IV 7
- Section V 8
- Section VI 9
- Section VII 9
- Table of Contents 10
- Web Browser Management 11
- Section VIII 11
- List of Figures 16
- How This Guide is Organized 25
- Document Conventions 27
- Contacting Allied Telesyn 29
- Management Software Updates 30
- Overview 31
- Management Overview 32
- Local Management Session 34
- Telnet Management Session 35
- Chapter 1: Overview 36
- SNMP Management Session 37
- Management Access Levels 38
- Basic Operations 39
- Starting a Local or Telnet 40
- Management Session 40
- Starting a Local 42
- Enhanced 44
- Stacking 44
- Quitting a Local 44
- Quitting a 46
- Saving Your Parameter Changes 47
- Enhanced Stacking 48
- Enhanced Stacking Overview 49
- Chapter 3: Enhanced Stacking 50
- RS-232 TERMINAL PORT 51
- IP Address 51
- Returning to 55
- Basic Switch Parameters 56
- How Do You 58
- Assign an IP 58
- Address? 58
- Setting the System Time 67
- D - Disabled) -> 69
- -> 600 70
- Configuring the Console Timer 72
- ° Celsius 80
- ° to 90° Celsius 80
- SNMPv1 and SNMPv2c Overview 82
- Default SNMP 84
- Enter SNMP Manager IP Addr: 88
- Enter Trap Receiver IP Addr: 88
- Enter SNMP Community Name: 90
- Displaying Port Status 95
- Flow Ctl 97
- Chapter 6: Port Parameters 100
- 5 - Speed .............. 0100 101
- 6 - Duplex ............. Full 101
- AT-S62 User’s Guide 103
- Setting the Rate Limit 107
- MAC Address Table 109
- MAC Address Overview 110
- Displaying MAC Addresses 112
- Chapter 7: MAC Address Table 114
- XXXXXXXXXXXX or XXXXXX XXXXXX 116
- Enter port-list: -> 116
- Changing the Aging Time 120
- Port Trunking 121
- Port Trunking Overview 122
- Port Operating 123
- Specifications 123
- Distribution 123
- Chapter 8: Port Trunking 124
- Creating a Port Trunk 129
- Create Trunk 130
- Modifying a Port Trunk 132
- Modify Trunk 133
- Deleting a Port Trunk 135
- Port Mirroring 136
- Port Mirroring Overview 137
- Creating a Port Mirror 138
- Deleting a Port Mirror 140
- Ethernet Statistics 141
- Displaying Port Statistics 142
- Clearing Port Counters 144
- Advanced Operations 145
- File System 146
- File System Overview 147
- File Naming 148
- Conventions 148
- Creating a Boot 149
- Configuration 149
- Chapter 11: File System 150
- Enter the file name: 151
- Setting the 152
- Active Boot 152
- Viewing a Boot 153
- Editing a Boot 154
- Troubleshoot 155
- Enter the source file name: 156
- Please wait 156
- Press any key 156
- Displaying System Files 158
- File Downloads and Uploads 160
- Return to Previous Menu 162
- [Yes/No] 168
- Downloading a System File 171
- Downloading a 172
- System File 172
- Management 172
- Uploading a System File 177
- Uploading a 178
- Event Log 182
- Event Log Overview 183
- Chapter 13: Event Log 184
- Displaying Events 185
- Saving the Event Log 189
- Clearing the Event Log 190
- Quality of Service 191
- Quality of Service Overview 192
- Configuring CoS 196
- Configuring Egress Scheduling 201
- IGMP Snooping 203
- IGMP Snooping Overview 204
- Activating IGMP Snooping 206
- Chapter 15: IGMP Snooping 208
- Denial of Service Defense 212
- SYN Flood 213
- Ping of Death 216
- IP Options 217
- Denial of 217
- Service Defense 217
- Guidelines 217
- SNMPv3 Operations 221
- SNMPv3 Configuration 222
- SNMPv3 Overview 223
- Authentication 224
- Protocols 224
- SNMPv3 Privacy 225
- Protocol 225
- SNMPv3 MIB 225
- SNMPv3 Storage 226
- Notification 226
- SNMPv3 User Table 228
- SNMPv3 View Table 228
- SNMPv3 Access Table 228
- Creating an 234
- SNMPv3 User 234
- Table Entry 234
- Enter User (Security) Name: 236
- N-None]: 236
- Enter Privacy Password: 237
- [Yes/No]-> 238
- SNMPv3 View 244
- Deleting an 247
- Modifying an 248
- Enter View Name: 250
- 1.3.6.1.2.1.6 250
- SNMPv3 Access 253
- P-AuthPriv]: 255
- Enter Read View Name: 256
- Enter Write View Name: 256
- Enter Notify View Name: 256
- A-AuthNoPriv, P-AuthPriv]: 258
- Enter Group Name: 262
- SecurityToGroup 268
- Table Entr 272
- SNMPv3 Notify 276
- Enter Notify Name: 281
- SNMPv3 Target 284
- Address Table 284
- Enter Target Address Name: 289
- Enter IP Address: 289
- Enter Tag List: 292
- Enter Target Parameters: 293
- Parameters 297
- Enter Target Parameters Name: 298
- Community 310
- Enter Security Name: 312
- Enter Transport Tag: 312
- Enter Community Index: 316
- Displaying SNMPv3 Table Menus 319
- Displaying the 321
- Display SNMPv3 321
- View Table 321
- Access Table 322
- Notify Table 324
- Target Address 325
- Table Menu 325
- Spanning Tree Protocols 328
- Spanning Tree and Rapid 329
- STP and RSTP Overview 330
- Bridge Priority 331
- Chapter 18: STP and RSTP 332
- Edge Port 337
- Mixed STP and 338
- RSTP Network 338
- Spanning Tree 338
- Configuring STP 342
- Port Settings 344
- Displaying STP 346
- Configuring RSTP 347
- Configuring 349
- RSTP Port 349
- Settings 349
- Displaying Port 351
- RSTP Status 351
- Chapter 19 352
- MSTP Overview 353
- Multiple 354
- Instance (MSTI) 354
- AT- 8524M 355
- VLAN and MSTI 358
- Associations 358
- AT-8524M 360
- Summary of 363
- AT-8524M AT-8524M 367
- Configuring the CIST Priority 372
- 4096]: [0 to 15] -> 373
- Associating VLANs to MSTI IDs 377
- Associating a 378
- VLAN to an 378
- Enter the list of VLANs: 379
- Virtual LANs 384
- Chapter 20 385
- VLAN Overview 386
- Section V: Virtual LANs 387 387
- Port-based VLAN Overview 388
- Section V: Virtual LANs 389 389
- Section V: Virtual LANs 390 390
- Port-based 391
- Example 1 391
- Section V: Virtual LANs 392 392
- Example 2 393
- Section V: Virtual LANs 394 394
- Tagged VLAN Overview 395
- Section V: Virtual LANs 396 396
- General Rules 397
- Tagged VLAN 397
- Section V: Virtual LANs 399 399
- Section V: Virtual LANs 400 400
- Section V: Virtual LANs 401 401
- Section V: Virtual LANs 402 402
- Section V: Virtual LANs 403 403
- Section V: Virtual LANs 404 404
- Section V: Virtual LANs 405 405
- Modifying a VLAN 406
- Section V: Virtual LANs 407 407
- Press any key to continue 408
- Section V: Virtual LANs 409 409
- Displaying VLANs 410
- Deleting a VLAN 411
- Section V: Virtual LANs 412 412
- Section V: Virtual LANs 413 413
- Deleting All VLANs 414
- Section V: Virtual LANs 415 415
- Section V: Virtual LANs 416 416
- Disable) -> 417
- Specifying a Management VLAN 418
- Press any key to continue 419
- Chapter 21 420
- Section V: Virtual LANs 421 421
- Section V: Virtual LANs 423 423
- GVRP and 424
- Security 424
- GVRP-inactive 425
- Intermediate 425
- Switches 425
- Protocol (GARP) 426
- Section V: Virtual LANs 427 427
- Section V: Virtual LANs 428 428
- Section V: Virtual LANs 429 429
- Configuring GVRP 430
- > 1000 431
- Section V: Virtual LANs 432 432
- Section V: Virtual LANs 433 433
- Your changes are saved 434
- Section V: Virtual LANs 435 435
- Section V: Virtual LANs 436 436
- Section V: Virtual LANs 437 437
- Section V: Virtual LANs 438 438
- Section V: Virtual LANs 439 439
- Section V: Virtual LANs 440 440
- Section V: Virtual LANs 441 441
- GIP Connected 442
- Ports Ring 442
- GVRP State 443
- Section V: Virtual LANs 444 444
- Section V: Virtual LANs 445 445
- Multiple VLAN Modes 446
- Multiple VLAN Mode Overview 447
- Section V: Virtual LANs 448 448
- Non-802.1Q 449
- Compliant 449
- Multiple VLAN 449
- Section V: Virtual LANs 450 450
- Selecting a VLAN Mode 451
- Displaying VLAN Information 452
- Port Security 453
- MAC Address Security 454
- MAC Address Security Overview 455
- Section VI: Port Security 456 456
- Section VI: Port Security 457 457
- Section VI: Port Security 458 458
- Section VI: Port Security 459 459
- Disable): 460
- Section VI: Port Security 461 461
- Section VI: Port Security 462 462
- Chapter 24 463
- Section VI: Port Security 464 464
- Section VI: Port Security 466 466
- Fast Ethernet Switch 467
- Accounting 468
- Section VI: Port Security 469 469
- Access Control 470
- Section VI: Port Security 471 471
- Section VI: Port Security 472 472
- Section VI: Port Security 473 473
- Setting Port Roles 474
- Section VI: Port Security 475 475
- Section VI: Port Security 476 476
- Section VI: Port Security 477 477
- Section VI: Port Security 478 478
- Section VI: Port Security 479 479
- Section VI: Port Security 480 480
- Section VI: Port Security 481 481
- Section VI: Port Security 482 482
- Configuring RADIUS Accounting 483
- Section VI: Port Security 484 484
- Management Security 485
- Web Server 486
- Web Server Overview 487
- General Steps to 488
- Configuring the 488
- Web Server for 488
- Encryption 488
- Configuring the Web Server 490
- [1 to 2] -> 491
- Enter SSL Key ID -> 491
- Encryption Keys 492
- Basic Overview 493
- Encryption Key 494
- Technical Overview 495
- Chapter 26: Encryption Keys 496
- Key Exchange 498
- Algorithms 498
- Creating an Encryption Key 500
- Enter new Description -> 503
- Deleting an Encryption Key 504
- Modifying an Encryption Key 505
- Exporting an Encryption Key 506
- Importing an Encryption Key 508
- Public Key Infrastructure 510
- Certificates 510
- Distinguished 512
- Verification 517
- Signatures 519
- Elements of a 520
- Public Key 520
- Infrastructure 520
- Certificate 521
- Validation 521
- Revocation Lists 522
- Implementation 522
- Switch 12 - sw12.cer 529
- Modifying a Certificate 531
- Deleting a Certificate 533
- Viewing a Certificate 534
- ...Done 539
- 12.csr] 539
- Configuring PKI 541
- Configuring SSL 542
- Secure Shell (SSH) Protocol 543
- SSH Overview 544
- Configuring the SSH Server 548
- Displaying SSH Information 550
- RADIUS and TACACS+ 552
- Authentication Protocols 552
- TACACS+ and RADIUS Overview 553
- Disabled) -> 559
- Displaying 562
- RADIUS Status 562
- Chapter 30 563
- Parts of a 564
- ACL Guidelines 565
- ACL Examples 566
- Creating the Management ACL 568
- Starting a Web Browser 573
- Switch’s IP Address 574
- Chapter 32: Enhanced Stacking 580
- Displaying System Information 590
- Rebooting a Switch 594
- Pinging a Remote System 595
- SNMPv1 and SNMPv2c 598
- Community Strings 598
- Modifying a Community String 604
- Deleting a Community String 606
- Port Parameters 609
- Configuring Port Parameters 610
- Chapter 35: Port Parameters 612
- Chapter 36:MAC Address Table 622
- Chapter 37: Port Trunking 630
- Displaying the Port Trunks 635
- The ports of the trunk 636
- Chapter 38: Port Mirroring 640
- Displaying the Port Mirror 643
- Downloading a File 645
- Uploading a File 648
- Chapter 40: Event Log 652
- Displaying the CoS Settings 664
- Displaying QoS Scheduling 666
- Configuring IGMP Snooping 668
- Chapter 42: IGMP Snooping 670
- Displaying the DoS Settings 677
- SNMPv3 Protocol 678
- AT-S62 User’s Guide 679
- Enabling the SNMP Protocol 680
- Changes 682
- Creating a User 683
- Chapter 44: SNMPv3 Protocol 684
- Deleting a User 686
- Modifying a 686
- User Table 686
- Creating a View 690
- Deleting a View 693
- Creating a 703
- Deleting a 705
- Modifying 717
- Displaying SNMPv3 Tables 733
- Displaying User 734
- Table Entries 734
- Displaying View 735
- STP, RSTP, and MSTP 742
- 7. Click Apply 744
- Configuring MSTP 752
- Associating 755
- VLANs to MSTIs 755
- MSTP Port 758
- Chapter 46: Virtual LANs 762
- 6. Click Apply 772
- Chapter 47 775
- Displaying the GVRP Settings 780
- Chapter 49 785
- 4. Click Apply 792
- Changes on page 577 792
- Secure Shell Protocol 797
- Encryption Keys, PKI, and SSL 802
- Displaying Encryption Keys 803
- Displaying the SSL Settings 807
- Chapter 53 815
- Creating a Management ACL 816
- Adding or Deleting an ACE 818
- Displaying the Management ACL 819
- AT-S62 Default Settings 820
- Basic Switch Default Settings 821
- RS-232 Port 822
- Default Settings 822
- SNTP Default 822
- Switch State Slave 824
- SNMP Default Settings 825
- Event Log Default Settings 827
- MSTP Default 832
- VLAN Default Settings 833
- GVRP Default Settings 834
- Web Server Default Settings 837
- SSL Default Settings 838
- PKI Default Settings 839
- SSH Default Settings 840
- Control List 842
- Status Disabled 842
- SNMPv3 Configuration Examples 843
- Operator 845
- Worksheet 846
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