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Chapter 18: Stateful Firewall Commands Efficient Networks
®
Router family
Command Line Interface Guide
Page 18-16 Efficient Networks
®
firewall setsynfloodthreshold
As a method to prevent a flooding of the system with SYN requests, use this
command set the threshold value for the number of SYN packets per second. When
the specified threshold is exceeded, the firewall will block any subsequent SYN
packets until the SYN traffic drops below the threshold value. For more information on
SYN attacks, see “Stateful Firewall” on page 4-34.
Mgmt Class
Security (R/W)
Input Format
firewall setsynfloodthreshold <number>
Parameters
Response
Command prompt.
<number>
a
a
Integer (200)
Threshold value in packets per seconds.
- 5RXWHU)DPLO\ 1
- Efficient Networks 2
- Revision History 5
- Introduction 1-1 6
- Contents 10
- INTRODUCTION 23
- Command Conventions 24
- Accessing the Command Line 24
- Terminal Sessions 25
- Bits per second: 27
- Task Complete 28
- Username: 29
- Page 1-8 Efficient Networks 30
- STATUS COMMANDS 31
- ? or help 33
- Voice (R) 35
- Request Queued 37
- # erase dod 39
- Page 2-10 Efficient Networks 40
- Page 2-12 Efficient Networks 42
- Page 2-22 Efficient Networks 52
- -> sntp active 53
- -> sntp disable 53
- Page 2-24 Efficient Networks 54
- 2: 172.17.20.1 61
- FILE SYSTEM COMMANDS 63
- Copying 64
- 421888 bytes copied 64
- <filename> 65
- -> delete kernel.f2k 65
- SYSTEM COMMANDS 71
- Page 4-8 Efficient Networks 78
- Page 4-12 Efficient Networks 82
- Page 4-20 Efficient Networks 90
- Page 4-22 Efficient Networks 92
- <samples> 93
- <group> 93
- <minutes> 94
- -> system backup retry 60 94
- -> system backup retry 1 94
- Page 4-26 Efficient Networks 96
- <snmp community name> 97
- -> system community fred 98
- <tablename> 100
- [<first private port>]] 101
- Parameters 102
- <first ipaddr> 103
- <last ipaddr> 103
- Page 4-34 Efficient Networks 104
- Router family 104
- Command Line Interface Guide 104
- <ipaddr> 105
- Page 4-36 Efficient Networks 106
- Response 107
- Mgmt Class 109
- Input Format 109
- Examples 111
- <password> 116
- <seconds> 116
- System CLI limit set to 7 117
- Page 4-48 Efficient Networks 118
- Default value 119
- Page 4-50 Efficient Networks 120
- Page 4-52 Efficient Networks 122
- -> system supporttrace 126
- Page 4-58 Efficient Networks 128
- Page 4-60 Efficient Networks 130
- Page 4-62 Efficient Networks 132
- Page 4-64 Efficient Networks 134
- Page 4-66 Efficient Networks 136
- -> system telnetpport 154 137
- ETHERNET INTERFACE COMMANDS 139
- <port#> 143
- <logical#> 143
- -> eth add 0:1 143
- Page 5-6 Efficient Networks 144
- <first public addr> to 145
- [<interface>] 147
- Parameters Cont 149
- <ip addr> 151
- <interface> 151
- <ipnetmask> 153
- Page 5-18 Efficient Networks 156
- -tcp syn 162
- - q or -v 163
- Page 5-30 Efficient Networks 168
- <port> 172
- Page 5-38 Efficient Networks 176
- <vrid> 178
- -> eth vrrp add 7 178
- -> eth vrrp add 2 1 178
- -> eth clear password 7 179
- Integer, 1 - 255 180
- Page 5-46 Efficient Networks 184
- <priority> 185
- REMOTE COMMANDS 189
- <remotename> 194
- Dotted-decimal notation 203
- Integer, 1 - 15 203
- ASCII string 203
- Page 6-16 Efficient Networks 204
- Page 6-18 Efficient Networks 206
- <first private addr> 207
- <second private addr> 207
- <first public addr> 207
- Page 6-20 Efficient Networks 208
- <servicename> 209
- Page 6-26 Efficient Networks 214
- Page 6-28 Efficient Networks 216
- Page 6-30 Efficient Networks 218
- -> rem list internet 223
- -> rem listbridge 224
- Page 6-38 Efficient Networks 226
- Page 6-42 Efficient Networks 230
- <routername> 231
- <threshold> 232
- <remoteName> 234
- Page 6-48 Efficient Networks 236
- Page 6-50 Efficient Networks 238
- Page 6-52 Efficient Networks 240
- Page 6-56 Efficient Networks 244
- Page 6-72 Efficient Networks 260
- WAN INTERFACE COMMANDS 261
- ADSL Commands 262
- Page 7-4 Efficient Networks 264
- ATM Commands 265
- Page 7-6 Efficient Networks 266
- Page 7-8 Efficient Networks 268
- DMT Commands 270
- G_DMT G.dmt standard 271
- MULTIMODE 271
- Page 7-12 Efficient Networks 272
- Page 7-14 Efficient Networks 274
- CAUTION: 275
- -> eth br options stp off 276
- Frame Commands 277
- GTI Commands 281
- -> gti speed 282
- -> gti stats 282
- -> gti version 283
- Firmware: P11 283
- DSP Version: 0 283
- HDSL Commands 284
- Page 7-26 Efficient Networks 286
- -> idsl list 287
- Switch type is FR128 287
- Page 7-28 Efficient Networks 288
- Page 7-30 Efficient Networks 290
- SDSL Commands 291
- Preactivation enabled 292
- Preactivation disabled 292
- -> sdsl terminal 295
- Customer Premises 295
- SHDSL Commands 296
- -> shdsl annex 297
- <db> 299
- -> shdsl margin 299
- Margin = 6 299
- -> shdsl ratemode 300
- Adaptive 300
- -> shdsl terminal 304
- -> shdsl ver 305
- GTI SHDSL Version R1.2 305
- Page 7-46 Efficient Networks 306
- DHCP COMMANDS 307
- Page 8-6 Efficient Networks 312
- Page 8-8 Efficient Networks 314
- Page 8-10 Efficient Networks 316
- -> dhcp list lease 325
- <Net> 327
- <mask> 327
- Page 8-24 Efficient Networks 330
- L2TP COMMANDS 331
- <tunnelname> 333
- -> l2tp add PacingAtWork 333
- -> l2tp call PacingAtWork 334
- The name is case sensitive 335
- -> l2tp list 337
- Page 9-8 Efficient Networks 338
- Page 9-10 Efficient Networks 340
- Page 9-12 Efficient Networks 342
- <name> 343
- BRIDGE FILTERING COMMANDS 349
- Page 10-2 Efficient Networks 350
- -> filter br list 352
- Allow Filter: 352
- Deny Filter: 352
- -> filter br use allow 353
- Page 10-6 Efficient Networks 354
- PPPOE COMMANDS 355
- - to clear the setting 356
- Page 11-4 Efficient Networks 358
- IKE/IPSEC COMMANDS 359
- Page 12-6 Efficient Networks 364
- <policyname> 365
- Page 12-8 Efficient Networks 366
- <ipaddress> 369
- <ipmask> 369
- <proposalname> 381
- Page 12-28 Efficient Networks 386
- Choose one of the following: 386
- <kbytes> 387
- Page 12-30 Efficient Networks 388
- <peername> 389
- <AggressiveModeID> 395
- Page 12-40 Efficient Networks 398
- Page 12-42 Efficient Networks 400
- Page 12-44 Efficient Networks 402
- <saname> 403
- -> ipsec add show_rx 403
- Page 12-46 Efficient Networks 404
- -> ipsec disable show_rx 405
- -> ipsec enable show_rx 405
- Page 12-50 Efficient Networks 408
- Page 12-52 Efficient Networks 410
- Page 12-54 Efficient Networks 412
- VOICE COMMANDS 415
- Page 13-4 Efficient Networks 418
- Page 13-6 Efficient Networks 420
- Page 13-8 Efficient Networks 422
- Page 13-10 Efficient Networks 424
- RADIUS COMMANDS 425
- <integer> 426
- -> rad deleteserver 1 426
- RADIUS Server 1 DELETED 426
- -> rad list secret 427
- RADIUS Secrets 427
- 427
- Server1: Set 427
- Server2: Set 427
- <server> 429
- Page 14-6 Efficient Networks 430
- USER COMMANDS 431
- Page 15-6 Efficient Networks 436
- Page 15-8 Efficient Networks 438
- User account to be deleted 438
- <username> 440
- -> user enable Admin1 440
- Page 15-12 Efficient Networks 442
- Page 15-14 Efficient Networks 444
- Page 15-16 Efficient Networks 446
- KEY COMMANDS 447
- Page 16-4 Efficient Networks 450
- <feature_name> 451
- -> key disable l2tp 451
- Page 16-6 Efficient Networks 452
- -> key revoke qos 454
- <key_string> 455
- Page 16-10 Efficient Networks 456
- SNMP COMMANDS 457
- Page 17-2 Efficient Networks 458
- Page 17-4 Efficient Networks 460
- Page 17-8 Efficient Networks 464
- STATEFUL FIREWALL COMMANDS 467
- 473
- Page 18-8 Efficient Networks 474
- Page 18-14 Efficient Networks 480
- <number> 481
- Page 18-20 Efficient Networks 486
- SSH COMMANDS 487
- Page 19-2 Efficient Networks 488
- SSH List 489
- Page 19-4 Efficient Networks 490
- -> ssh set idletimeout 600 492
- <interval> 494
- Integer, 1 - 65525 (22) 495
- Page 19-10 Efficient Networks 496
- QOS COMMANDS 497
- <policy name> 499
- -> qos append mypolicy1 499
- -> qos del all 500
- Page 20-6 Efficient Networks 502
- Page 20-8 Efficient Networks 504
- Page 20-10 Efficient Networks 506
- Page 20-14 Efficient Networks 510
- SWITCH COMMANDS 511
- -> switch block 7 513
- Port 7 is disabled 513
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