Allied-telesis AT-S63 Manuale Utente Pagina 452
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Chapter 34: Denial of Service (DoS) Defense Commands
452
Caution
This defense is extremely CPU intensive and should be used with
caution. Unrestricted use can cause a switch to halt operations if the
CPU becomes overwhelmed with IP traffic. To prevent this, Allied
Telesyn recommends that you activate this defense on only one
port at a time, and only on a port where ingress fragments comprise
only a small percentage of its total traffic.
Example
The following command activates the defense on port 22:
set dos teardrop port=22 state=enable
- Command Line Interface 1
- User’s Guide 1
- Contents 10
- Document Conventions 14
- Contacting Allied Telesyn 16
- Starting a Command Line 19
- Management Session 19
- Command Formatting 22
- Basic Command Line Commands 23
- CLEAR SCREEN 24
- LOGOFF, LOGOUT and QUIT 27
- SAVE CONFIGURATION 29
- SET PROMPT 30
- SET SWITCH CONSOLEMODE 31
- SHOW USER 32
- Basic Switch Commands 33
- DISABLE DHCPBOOTP 35
- DISABLE IP REMOTEASSIGN 36
- DISABLE TELNET 37
- ENABLE DHCPBOOTP 38
- ENABLE IP REMOTEASSIGN 39
- PURGE IP 42
- RESET SWITCH 43
- RESET SYSTEM 44
- RESTART REBOOT 45
- RESTART SWITCH 46
- SET ASYN 48
- SET IP INTERFACE 49
- SET IP ROUTE 51
- SET PASSWORD MANAGER 52
- SET PASSWORD OPERATOR 53
- SET SWITCH CONSOLETIMER 54
- SET SYSTEM 55
- SET USER PASSWORD 56
- SHOW ASYN 57
- SHOW CONFIG 58
- SHOW DHCPBOOTP 59
- SHOW IP ROUTE 61
- SHOW SWITCH 62
- SHOW SYSTEM 63
- SNMPv2 and SNMPv2c 65
- ADD SNMP COMMUNITY 66
- CREATE SNMP COMMUNITY 68
- DELETE SNMP COMMUNITY 71
- DESTROY SNMP COMMUNITY 73
- DISABLE SNMP 74
- DISABLE SNMP AUTHENTICATETRAP 75
- DISABLE SNMP COMMUNITY 76
- ENABLE SNMP 77
- ENABLE SNMP AUTHENTICATETRAP 78
- ENABLE SNMP COMMUNITY 79
- SHOW SNMP 82
- Simple Network Time Protocol 85
- (SNTP) Commands 85
- ADD SNTPSERVER PEER 86
- DISABLE SNTP 88
- ENABLE SNTP 89
- PURGE SNTP 90
- SET DATE 91
- SET SNTP 92
- SET TIME 93
- SHOW SNTP 94
- SHOW TIME 95
- Enhanced Stacking Commands 97
- ACCESS SWITCH 98
- SHOW REMOTELIST 102
- Port Parameter Commands 103
- ACTIVATE SWITCH PORT 104
- DISABLE INTERFACE LINKTRAP 105
- DISABLE SWITCH PORT 106
- DISABLE SWITCH PORT FLOW 107
- ENABLE INTERFACE LINKTRAP 108
- ENABLE SWITCH PORT 109
- ENABLE SWITCH PORT FLOW 110
- RESET SWITCH PORT 111
- SET SWITCH PORT 112
- SET SWITCH PORT RATELIMITING 117
- SHOW INTERFACE 120
- SHOW SWITCH PORT 122
- MAC Address Table Commands 123
- ADD SWITCH FDB 124
- DELETE SWITCH FDB 126
- RESET SWITCH FDB 127
- SHOW SWITCH FDB 129
- Port Trunking Commands 131
- ADD SWITCH TRUNK 132
- CREATE SWITCH TRUNK 133
- DELETE SWITCH TRUNK 135
- DESTROY SWITCH TRUNK 136
- SET SWITCH TRUNK 137
- SHOW SWITCH TRUNK 138
- Port Mirroring Commands 139
- SET SWITCH MIRROR 140
- SET SWITCH PORT MIRROR 141
- SHOW SWITCH MIRROR 143
- File System Commands 145
- CREATE CONFIG 147
- DELETE FILE 148
- SET CONFIG 150
- SHOW FILE 152
- File Download and Upload 153
- Commands 153
- server= 160
- Event Log Commands 163
- DISABLE LOG 164
- ENABLE LOG 165
- PURGE LOG 166
- SAVE LOG 167
- SET LOG FULLACTION 169
- SHOW LOG 170
- AT-S63 module VLAN: 174
- SHOW LOG STATUS 175
- Quality of Service (QoS) 177
- MAP QOS COSP 178
- SET QOS COSP 180
- SET QOS SCHEDULING 181
- SHOW QOS CONFIG 182
- IGMP Snooping Commands 183
- DISABLE IGMPSNOOPING 184
- ENABLE IGMPSNOOPING 185
- SET IP IGMP 186
- SHOW IGMPSNOOPING 188
- SHOW IP IGMP 189
- RRP Snooping Commands 191
- DISABLE RRPSNOOPING 192
- ENABLE RRPSNOOPING 193
- SHOW RRPSNOOPING 194
- STP Commands 195
- ACTIVATE STP 196
- DISABLE STP 197
- ENABLE STP 198
- PURGE STP 199
- Chapter 17: STP Commands 200
- ACTIVATE RSTP 208
- DISABLE RSTP 209
- ENABLE RSTP 210
- PURGE RSTP 211
- SET RSTP 212
- Chapter 18: RSTP Commands 214
- SET RSTP PORT 216
- Chapter 19: MSTP Commands 222
- ADD MSTP 224
- CREATE MSTP 225
- DELETE MSTP 226
- DESTROY MSTP MSTIID 227
- DISABLE MSTP 228
- ENABLE MSTP 229
- PURGE MSTP 230
- SET MSTP 231
- SET MSTP CIST 234
- SET MSTP MSTI 236
- SET MSTP MSTIVLANASSOC 238
- SET MSTP PORT 239
- SHOW MSTP 242
- Chapter 20: SNMPv3 Commands 246
- CLEAR SNMPV3 NOTIFY 252
- CLEAR SNMPV3 TARGETADDR 253
- CLEAR SNMPV3 VIEW 254
- CREATE SNMPV3 ACCESS 255
- CREATE SNMPV3 COMMUNITY 258
- CREATE SNMPV3 GROUP 260
- CREATE SNMPV3 NOTIFY 262
- CREATE SNMPV3 TARGETADDR 264
- CREATE SNMPV3 TARGETPARAMS 266
- CREATE SNMPV3 VIEW 268
- DELETE SNMPV3 USER 270
- DESTROY SNMPv3 ACCESS 271
- DESTROY SNMPv3 GROUP 274
- DESTROY SNMPv3 NOTIFY 275
- DESTROY SNMPv3 TARGETADDR 276
- DESTROY SNMPv3 TARGETPARMS 277
- DESTROY SNMPV3 VIEW 278
- SET SNMPV3 ACCESS 279
- Examples 294
- SHOW SNMPV3 ACCESS 295
- SHOW SNMPV3 COMMUNITY 296
- SHOW SNMPv3 GROUP 297
- SHOW SNMPV3 NOTIFY 298
- SHOW SNMPV3 TARGETADDR 299
- SHOW SNMPV3 TARGETPARAMS 300
- SHOW SNMPV3 USER 301
- SHOW SNMPV3 VIEW 302
- VLANs and Multiple VLAN Mode 303
- ADD VLAN 304
- CREATE VLAN 307
- DELETE VLAN 311
- DESTROY VLAN 314
- SET SWITCH INFILTERING 315
- SET SWITCH MANAGEMENTVLAN 316
- SET SWITCH VLANMODE 317
- SET VLAN 319
- SHOW VLAN 320
- DISABLE GARP 322
- ENABLE GARP 323
- PURGE GARP 324
- SET GARP PORT 325
- SET GARP TIMER 326
- SHOW GARP 328
- SHOW GARP COUNTER 329
- SHOW GARP DATABASE 331
- SHOW GARP GIP 332
- SHOW GARP MACHINE 333
- Protected Ports VLAN Commands 335
- ADD VLAN GROUP 336
- CREATE VLAN PORTPROTECTED 339
- Statistics Commands 345
- RESET SWITCH PORT COUNTER 346
- SHOW SWITCH COUNTER 347
- SHOW SWITCH PORT COUNTER 348
- Port Security Commands 349
- SET SWITCH PORT INTRUSION 350
- SET SWITCH PORT SECURITYMODE 351
- SHOW SWITCH PORT INTRUSION 354
- SHOW SWITCH PORT SECURITYMODE 355
- Management ACL Commands 357
- ADD MGMTACL 358
- DELETE MGMTACL 361
- DISABLE MGMTACL 362
- ENABLE MGMTACL 363
- SET MGMTACL STATE 364
- SHOW MGMTACL 365
- Web Server Commands 367
- DISABLE HTTP SERVER 368
- ENABLE HTTP SERVER 369
- PURGE HTTP SERVER 370
- SET HTTP SERVER 371
- SHOW HTTP SERVER 376
- Encryption Key Commands 377
- CREATE ENCO KEY 378
- DESTROY ENCO KEY 382
- SET ENCO KEY 383
- SHOW ENCO 384
- Chapter 29 385
- Certificate Commands 385
- ADD PKI CERTIFICATE 386
- CREATE PKI CERTIFICATE 388
- CREATE PKI ENROLLMENTREQUEST 391
- DELETE PKI CERTIFICATE 393
- PURGE PKI 394
- SET PKI CERTIFICATE 395
- SET PKI CERTSTORELIMIT 397
- SET SYSTEM DISTINGUISHEDNAME 398
- SHOW PKI 399
- SHOW PKI CERTIFICATE 400
- Secure Sockets Layer (SSL) 401
- ] [maxsessions= 402
- SHOW SSL 403
- Secure Shell (SSH) Commands 405
- DISABLE SSH SERVER 406
- ENABLE SSH SERVER 407
- SET SSH SERVER 410
- SHOW SSH 412
- TACACS+ and RADIUS 413
- ADD RADIUSSERVER 414
- ADD TACACSSERVER 416
- DELETE RADIUSSERVER 417
- DELETE TACACSSERVER 418
- DISABLE AUTHENTICATION 419
- ENABLE AUTHENTICATION 420
- PURGE AUTHENTICATION 421
- SET AUTHENTICATION 422
- SHOW AUTHENTICATION 424
- 802.1x Port-based Network 425
- Access Control Commands 425
- DISABLE PORTACCESS 426
- DISABLE RADIUSACCOUNTING 427
- ENABLE PORTACCESS 428
- ENABLE RADIUSACCOUNTING 429
- SET RADIUSACCOUNTING 436
- SHOW PORTACCESS 438
- SHOW PORTACCESS 439
- SHOW RADIUSACCOUNTING 440
- subnet= 442
- SET DOS IPOPTION 443
- SET DOS LAND 445
- SET DOS PINGOFDEATH 446
- SET DOS SMURF 448
- SET DOS SYNFLOOD 449
- SET DOS TEARDROP 451
- SHOW DOS 453
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