Home » Dell Manuals » Hubs & Switches » Dell S3100 » Manual Viewer

Dell S3100 EMC Command Line Reference Guide for the Series 9.14.2.2 - Page 304

deny tcp (for Extended IP ACLs

Add to My Manuals
Save this manual to your list of manuals

Page 304 highlights

Version 9.8(2.0) 9.8(1.0) 9.8(0.0P5) 9.8(0.0P2) 9.7(0.0) 9.4(0.0) 9.3(0.0) Description Introduced on the S3100 series. Introduced on the Z9100-ON. Introduced on the S4048-ON. Introduced on the S3048-ON. Introduced on the S6000-ON. Added support for flow-based monitoring on the S4810, S4820T, S6000, and Z9000 platforms. Added support for logging of ACLs on the S4810, S4820T, and Z9000 platforms. Usage Information When the configured maximum threshold is exceeded, generation of logs is stopped. When the interval at which ACL logs are configured to be recorded expires, the subsequent, fresh interval timer is started and the packet count for that new interval commences from zero. If ACL logging was stopped previously because the configured threshold is exceeded, it is re-enabled for this new interval. If ACL logging is stopped because the configured threshold is exceeded, it is re-enabled after the logging interval period elapses. ACL logging is supported for standard and extended IPv4 ACLs, IPv6 ACLs, and MAC ACLs. You can configure ACL logging only on ACLs that are applied to ingress interfaces; you cannot enable logging for ACLs that are associated with egress interfaces. You can activate flow-based monitoring for a monitoring session by entering the flow-based enable command in the Monitor Session mode. When you enable this capability, traffic with particular flows that are traversing through the ingress and egress interfaces are examined and, appropriate ACLs can be applied in both the ingress and egress direction. Flow-based monitoring conserves bandwidth by monitoring only specified traffic instead all traffic on the interface. This feature is particularly useful when looking for malicious traffic. It is available for Layer 2 and Layer 3 ingress and egress traffic. You may specify traffic using standard or extended access-lists. This mechanism copies all incoming or outgoing packets on one port and forwards (mirrors) them to another port. The source port is the monitored port (MD) and the destination port is the monitoring port (MG). Related Commands • deny - configure a filter to drop packets. • permit - configure a filter to forward packets. deny tcp (for Extended IP ACLs) Configure a filter that drops transmission control protocol (TCP) packets meeting the filter criteria. Syntax deny tcp {source mask | any | host ip-address} [bit] [operator port [port]] {destination mask | any | host ip-address} [ttl operator] [dscp] [bit] [operator port [port]] [count [byte]] [order] [fragments] [log [interval minutes] [threshold-in-msgs [count]] [monitor] To remove this filter, you have two choices: • Use the no seq sequence-number command if you know the filter's sequence number. • Use the no deny tcp {source mask | any | host ip-address} {destination mask | any | host ip-address} command. 304 Access Control Lists (ACL)

Section	Page
Dell EMC Command Line Reference Guide for the S3100 Series 9.14.2.2	3
About this Guide	43
Objectives	43
Audience	43
Conventions	43
CLI Basics	44
Accessing the Command Line	44
Multiple Configuration Users	44
Obtaining Help	45
Navigating the CLI	46
Using the no Command	47
Filtering show Commands	47
Enabling Software Features on Devices Using a Command Option	48
feature vrf	48
show feature	49
Command Modes	50
File Management	60
boot system	60
cd	62
copy	63
delete	65
dir	66
format	68
fsck flash	69
mkdir	70
mount nfs	70
rmdir	71
upgrade system	72
rename	75
restore factory-defaults	75
show boot system	78
show bootvar	79
show file-systems	80
show os-version	81
show running-config	83
show startup-config	87
show version	88
upgrade	90
Control and Monitoring	92
banner exec	92
banner login	93
banner motd	95
cam-acl	96
cam-acl-vlan	98
clear average-power	98
clear line	99
configure	100
disable	101
do	102
enable	103
enable optic-info-update interval	104
end	105
exec-timeout	106
exit	107
ftp-server enable	108
ftp-server topdir	109
ftp-server username	110
hostname	111
ip http source-interface	112
ip http vrf	113
ip ftp password	114
ip ftp source-interface	115
ip ftp username	116
ip ftp vrf	117
ip telnet server enable	118
ip telnet server vrf	119
ip telnet source-interface	120
ip telnet vrf	121
ip tftp source-interface	122
ip tftp vrf	123
line	124
login concurrent-session	125
login statistics	126
motd-banner	128
ping	129
reload	132
send	133
service timestamps	134
show alarms	135
show cam-acl-vlan	137
show command-history	137
show cpu-traffic-stats	139
show debugging	141
show environment	142
show inventory	143
show login statistics	145
show memory	147
show processes cpu	148
show processes ipc flow-control	151
show processes memory	153
show reset-reason	155
show software ifm	156
show system	158
show tech-support	159
ssh-peer-stack-unit	163
telnet	164
telnet-peer-stack-unit	166
terminal length	166
traceroute	167
undebug all	169
virtual-ip	170
write	171
802.1X	173
dot1x critical-vlan	174
debug dot1x	175
dot1x auth-fail-vlan	176
dot1x auth-server	177
dot1x auth-type mab-only	178
dot1x authentication (Configuration)	179
dot1x authentication (Interface)	179
dot1x guest-vlan	180
dot1x host-mode	182
dot1x mac-auth-bypass	183
dot1x max-eap-req	183
dot1x max-supplicants	184
dot1x port-control	185
dot1x profile	186
dot1x quiet-period	187
dot1x reauthentication	188
dot1x reauth-max	188
dot1x server-timeout	189
dot1x static-mab	190
dot1x supplicant-timeout	192
dot1x tx-period	192
mac	193
show dot1x cos-mapping interface	194
show dot1x interface	196
show dot1x profile	198
Access Control Lists (ACL)	200
Commands Common to all ACL Types	201
remark	201
show config	203
Common IP ACL Commands	204
access-class	204
clear counters ip access-group	206
ip access-group	206
ip control-plane egress-filter	208
show ip accounting access-list	209
show ip access-lists	211
Standard IP ACL Commands	211
deny	212
ip access-list standard	213
permit	215
resequence access-list	216
seq	218
Extended IP ACL Commands	220
deny	220
deny icmp	222
deny tcp	224
deny udp	228
ip access-list extended	231
permit	232
permit tcp	234
permit udp	237
resequence access-list	240
seq	241
Common MAC Access List Commands	244
clear counters mac access-group	244
mac access-group	245
show mac access-lists	247
show mac accounting access-list	248
Standard MAC ACL Commands	249
deny	249
mac access-list standard	251
permit	252
seq	253
Extended MAC ACL Commands	255
deny	255
mac access-list extended	257
permit	258
IP Prefix List Commands	260
clear ip prefix-list	260
deny	261
ip prefix-list	262
seq	263
show config	265
show ip prefix-list detail	265
show ip prefix-list summary	266
Route Map Commands	267
continue	268
description	269
match as-path	270
match community	271
match interface	272
match ip address	273
match ip next-hop	274
match ip route-source	275
match metric	276
match origin	277
match route-type	278
match tag	279
route-map	280
set as-path	282
set automatic-tag	283
set comm-list delete	284
set community	285
set level	286
set local-preference	287
set metric	288
set metric-type	289
set next-hop	290
set origin	291
set tag	292
set weight	293
show config	294
show route-map	295
AS-Path Commands	296
ip as-path access-list	296
show ip as-path-access-lists	297
IP Community List Commands	298
ip community-list	298
show ip community-lists	299
deny (for Standard IP ACLs)	300
deny (for Extended IP ACLs)	301
seq (for Standard IPv4 ACLs)	303
deny tcp (for Extended IP ACLs)	304
deny udp (for Extended IP ACLs)	306
deny arp (for Extended MAC ACLs)	308
deny icmp (for Extended IP ACLs)	309
deny ether-type (for Extended MAC ACLs)	311
deny (for Standard MAC ACLs)	312
deny (for Extended MAC ACLs)	313
permit (for Standard IP ACLs)	315
permit arp (for Extended MAC ACLs)	316
permit ether-type (for Extended MAC ACLs)	318
permit icmp (for Extended IP ACLs)	319
permit udp (for Extended IP ACLs)	321
permit (for Extended IP ACLs)	323
permit (for Standard MAC ACLs)	325
seq (for Standard MAC ACLs)	326
permit tcp (for Extended IP ACLs)	327
seq arp (for Extended MAC ACLs)	329
seq ether-type (for Extended MAC ACLs)	331
seq (for IP ACLs)	332
seq (for IPv6 ACLs)	334
permit udp (for IPv6 ACLs)	336
permit tcp (for IPv6 ACLs)	338
permit icmp (for IPv6 ACLs)	340
permit (for IPv6 ACLs)	342
deny udp (for IPv6 ACLs)	344
deny tcp (for IPv6 ACLs)	345
deny icmp (for Extended IPv6 ACLs)	348
deny (for IPv6 ACLs)	350
Access Control List (ACL) VLAN Groups and Content Addressable Memory (CAM)	352
member vlan	352
ip access-group	353
show acl-vlan-group	353
show cam-acl-vlan	355
cam-acl-vlan	356
show cam-usage	356
show running config acl-vlan-group	359
acl-vlan-group	359
show acl-vlan-group detail	360
description (ACL VLAN Group)	361
Bidirectional Forwarding Detection (BFD)	363
bfd all-neighbors	363
bfd disable	365
bfd enable (Configuration)	366
bfd enable (Interface)	366
bfd interval	367
bfd protocol-liveness	368
ip route bfd	369
ip ospf bfd all-neighbors	370
ipv6 ospf bfd all-neighbors	371
ipv6 route bfd	372
isis bfd all-neighbors	373
neighbor bfd	375
neighbor bfd disable	376
show bfd neighbors	377
vrrp bfd neighbor	379
Border Gateway Protocol	380
BGP IPv4 Commands	380
address-family	380
aggregate-address	381
bgp add-path	383
bgp always-compare-med	384
bgp asnotation	385
bgp bestpath as-path ignore	386
bgp bestpath as-path multipath-relax	387
bgp bestpath med confed	387
bgp bestpath med missing-as-best	388
bgp bestpath router-id ignore	389
bgp client-to-client reflection	390
bgp cluster-id	391
bgp confederation identifier	392
bgp confederation peers	393
bgp connection-retry-timer	394
bgp dampening	394
bgp default local-preference	396
bgp dmzlink-bw	397
bgp enforce-first-as	398
bgp fast-external-fallover	399
bgp four-octet-as-support	400
bgp graceful-restart	401
bgp non-deterministic-med	402
bgp outbound-optimization	403
bgp outbound-optimization	403
bgp recursive-bgp-next-hop	404
bgp regex-eval-optz-disable	405
bgp router-id	406
clear ip bgp	407
clear ip bgp dampening	409
clear ip bgp flap-statistics	410
clear ip bgp peer-group	412
deny bandwidth	413
debug ip bgp	414
debug ip bgp dampening	415
debug ip bgp events	416
debug ip bgp keepalives	418
debug ip bgp notifications	419
debug ip bgp soft-reconfiguration	420
debug ip bgp updates	421
default-metric	422
description	423
maximum-paths	424
neighbor activate	425
neighbor add-path	427
neighbor advertisement-interval	428
neighbor advertisement-start	429
neighbor allowas-in	430
neighbor default-originate	431
neighbor description	432
neighbor distribute-list	433
neighbor ebgp-multihop	434
neighbor fall-over	435
neighbor local-as	436
neighbor maximum-prefix	437
neighbor next-hop-self	438
neighbor password	439
neighbor peer-group (assigning peers)	440
neighbor peer-group (creating group)	442
neighbor peer-group passive	443
neighbor remote-as	444
neighbor remove-private-as	445
neighbor route-map	446
neighbor route-reflector-client	447
neighbor sender-side-loopdetect	448
neighbor send-community	449
neighbor shutdown	451
neighbor soft-reconfiguration inbound	452
neighbor timers	453
neighbor timers extended	454
neighbor update-source	455
neighbor weight	456
network	457
network backdoor	458
permit bandwidth	459
redistribute	460
redistribute ospf	462
router bgp	463
shutdown all	464
shutdown address-family-ipv4–multicast	464
shutdown address-family-ipv4–unicast	465
shutdown address-family-ipv6–unicast	465
set extcommunity bandwidth	466
show capture bgp-pdu neighbor	466
show config	468
show ip bgp	468
show ip bgp cluster-list	473
show ip bgp community	474
show ip bgp community-list	477
show ip bgp dampened-paths	479
show ip bgp detail	480
show ip bgp extcommunity-list	482
show ip bgp filter-list	483
show ip bgp flap-statistics	485
show ip bgp inconsistent-as	487
show ip bgp neighbors	489
show ip bgp next-hop	492
show ip bgp paths	493
show ip bgp paths community	495
show ip bgp peer-group	496
show ip bgp regexp	498
show ip bgp summary	500
show running-config bgp	503
timers bgp	504
timers bgp extended	505
MBGP Commands	505
debug ip bgp dampening	506
distance bgp	507
show ip bgp dampened-paths	508
BGP Extended Communities (RFC 4360)	509
set extcommunity rt	510
set extcommunity soo	511
show ip bgp paths extcommunity	512
show ip extcommunity-list	513
IPv6 BGP Commands	514
clear ip bgp ipv6 unicast soft	514
debug ip bgp ipv6 unicast soft-reconfiguration	515
ipv6 prefix-list	516
neighbor soft-reconfiguration inbound	517
show ipv6 prefix-list	518
IPv6 MBGP Commands	518
show ipv6 mbgproutes	518
Content Addressable Memory (CAM)	520
CAM Profile Commands	520
cam-acl (Configuration)	520
cam-acl-egress	523
cam-optimization	524
cam-threshold	525
show cam-acl	526
show cam-usage	528
test cam-usage	529
Control Plane Policing (CoPP)	532
control-plane-cpuqos	532
service-policy rate-limit-cpu-queues	533
service-policy rate-limit-protocols	534
ip unknown-unicast	535
ipv6 unknown-unicast	536
show cpu-queue rate cp	536
show ip protocol-queue-mapping	537
show ipv6 protocol-queue-mapping	538
show mac protocol-queue-mapping	539
Debugging and Diagnostics	541
Diagnostics and Monitoring Commands	541
logging coredump stack-unit	541
Offline Diagnostic Commands	542
diag stack-unit	542
offline stack-unit	544
online stack-unit	545
Hardware Commands	546
clear hardware stack-unit	546
clear hardware system-flow	547
clear hardware vlan-counters	548
hardware watchdog	548
show hardware mac	549
show hardware ip	550
show hardware stack-unit	551
show hardware buffer interface	559
show hardware counters interface	560
show hardware buffer-stats-snapshot	562
show hardware stack-unit buffer-stats-snapshot (Total Buffer Information)	563
show hardware system-flow	564
show hardware vlan-counters	566
show hardware drops	567
Dynamic Host Configuration Protocol (DHCP)	570
Commands to Configure the System to be a DHCP Server	570
clear ip dhcp	570
debug ip dhcp server	571
debug ipv6 dhcp	572
default-router	572
disable	573
dns-server	574
domain-name	575
excluded-address	576
hardware-address	577
host-address	577
ip dhcp server	578
lease	579
netbios-name-server	580
netbios-node-type	581
network	582
pool	582
show ip dhcp binding	583
show ip dhcp configuration	584
show ip dhcp conflict	585
show ip dhcp server	586
Commands to Configure Secure DHCP	587
arp inspection	587
arp inspection-limit	588
arp inspection-trust	588
clear ip dhcp snooping	589
clear ipv6 dhcp snooping binding	590
ip dhcp relay	591
ip dhcp snooping	592
ipv6 dhcp snooping	593
ipv6 dhcp snooping vlan	593
ip dhcp snooping binding	594
IPv6 DHCP Snooping Binding	595
ip dhcp snooping database	597
ipv6 dhcp snooping database write-delay	597
ip dhcp snooping database renew	598
ipv6 dhcp snooping database renew	599
ip dhcp snooping trust	599
ipv6 dhcp snooping trust	600
ip dhcp source-address-validation	601
ip dhcp relay information-option	602
ip dhcp relay source-interface	603
ipv6 dhcp relay source-interface	604
ip dhcp snooping verify mac-address	605
ipv6 dhcp snooping verify mac-address	606
ip helper-address	606
ipv6 helper-address	607
show ip dhcp snooping	608
show ipv6 dhcp snooping	610
Commands to Configure DNS	611
ip name-server	611
ip domain-name	612
ip domain-list	613
ip host	614
clear host	615
Equal Cost Multi-Path (ECMP)	616
ecmp-group	616
hash-algorithm	617
ip ecmp-group	619
ip ecmp weighted	620
link-bundle-monitor enable	621
link-bundle-distribution trigger-threshold	622
show config	623
show link-bundle distribution	623

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1,000
1,001
1,002
1,003
1,004
1,005
1,006
1,007
1,008
1,009
1,010
1,011
1,012
1,013
1,014
1,015
1,016
1,017
1,018
1,019
1,020
1,021
1,022
1,023
1,024
1,025
1,026
1,027
1,028
1,029
1,030
1,031
1,032
1,033
1,034
1,035
1,036
1,037
1,038
1,039
1,040
1,041
1,042
1,043
1,044
1,045
1,046
1,047
1,048
1,049
1,050
1,051
1,052
1,053
1,054
1,055
1,056
1,057
1,058
1,059
1,060
1,061
1,062
1,063
1,064
1,065
1,066
1,067
1,068
1,069
1,070
1,071
1,072
1,073
1,074
1,075
1,076
1,077
1,078
1,079
1,080
1,081
1,082
1,083
1,084
1,085
1,086
1,087
1,088
1,089
1,090
1,091
1,092
1,093
1,094
1,095
1,096
1,097
1,098
1,099
1,100
1,101
1,102
1,103
1,104
1,105
1,106
1,107
1,108
1,109
1,110
1,111
1,112
1,113
1,114
1,115
1,116
1,117
1,118
1,119
1,120
1,121
1,122
1,123
1,124
1,125
1,126
1,127
1,128
1,129
1,130
1,131
1,132
1,133
1,134
1,135
1,136
1,137
1,138
1,139
1,140
1,141
1,142
1,143
1,144
1,145
1,146
1,147
1,148
1,149
1,150
1,151
1,152
1,153
1,154
1,155
1,156
1,157
1,158
1,159
1,160
1,161
1,162
1,163
1,164
1,165
1,166
1,167
1,168
1,169
1,170
1,171
1,172
1,173
1,174
1,175
1,176
1,177
1,178
1,179
1,180
1,181
1,182
1,183
1,184
1,185
1,186
1,187
1,188
1,189
1,190
1,191
1,192
1,193
1,194
1,195
1,196
1,197
1,198
1,199
1,200
1,201
1,202
1,203
1,204
1,205
1,206
1,207
1,208
1,209
1,210
1,211
1,212
1,213
1,214
1,215
1,216
1,217
1,218
1,219
1,220
1,221
1,222
1,223
1,224
1,225
1,226
1,227
1,228
1,229
1,230
1,231
1,232
1,233
1,234
1,235
1,236
1,237
1,238
1,239
1,240
1,241
1,242
1,243
1,244
1,245
1,246
1,247
1,248
1,249
1,250
1,251
1,252
1,253
1,254
1,255
1,256
1,257
1,258
1,259
1,260
1,261
1,262
1,263
1,264
1,265
1,266
1,267
1,268
1,269
1,270
1,271
1,272
1,273
1,274
1,275
1,276
1,277
1,278
1,279
1,280
1,281
1,282
1,283
1,284
1,285
1,286
1,287
1,288
1,289
1,290
1,291
1,292
1,293
1,294
1,295
1,296
1,297
1,298
1,299
1,300
1,301
1,302
1,303
1,304
1,305
1,306
1,307
1,308
1,309
1,310
1,311
1,312
1,313
1,314
1,315
1,316
1,317
1,318
1,319
1,320
1,321
1,322
1,323
1,324
1,325
1,326
1,327
1,328
1,329
1,330
1,331
1,332
1,333
1,334
1,335
1,336
1,337
1,338
1,339
1,340
1,341
1,342
1,343
1,344
1,345
1,346
1,347
1,348
1,349
1,350
1,351
1,352
1,353
1,354
1,355
1,356
1,357
1,358
1,359
1,360
1,361
1,362
1,363
1,364
1,365
1,366
1,367
1,368
1,369
1,370
1,371
1,372
1,373
1,374
1,375
1,376
1,377
1,378
1,379
1,380
1,381
1,382
1,383
1,384
1,385
1,386
1,387
1,388
1,389
1,390
1,391
1,392
1,393
1,394
1,395
1,396
1,397
1,398
1,399
1,400
1,401
1,402
1,403
1,404
1,405
1,406
1,407
1,408
1,409
1,410
1,411
1,412
1,413
1,414
1,415
1,416
1,417
1,418
1,419
1,420
1,421
1,422
1,423
1,424
1,425
1,426
1,427
1,428
1,429
1,430
1,431
1,432
1,433
1,434
1,435
1,436
1,437
1,438
1,439
1,440
1,441
1,442
1,443
1,444
1,445
1,446
1,447
1,448
1,449
1,450
1,451
1,452
1,453
1,454
1,455
1,456
1,457
1,458
1,459
1,460
1,461
1,462
1,463
1,464
1,465
1,466
1,467
1,468
1,469
1,470
1,471
1,472
1,473
1,474
1,475
1,476
1,477
1,478
1,479
1,480
1,481
1,482
1,483
1,484
1,485
1,486
1,487
1,488
1,489
1,490
1,491
1,492
1,493
1,494
1,495
1,496
1,497
1,498
1,499
1,500
1,501
1,502
1,503
1,504
1,505
1,506
1,507
1,508
1,509
1,510
1,511
1,512
1,513
1,514
1,515
1,516
1,517
1,518
1,519
1,520
1,521
1,522
1,523
1,524
1,525
1,526
1,527
1,528
1,529
1,530
1,531
1,532
1,533
1,534
1,535
1,536
1,537
1,538
1,539
1,540
1,541
1,542
1,543
1,544
1,545
1,546
1,547
1,548
1,549
1,550
1,551
1,552
1,553
1,554
1,555
1,556
1,557
1,558
1,559
1,560
1,561
1,562
1,563
1,564
1,565
1,566
1,567
1,568
1,569
1,570
1,571
1,572
1,573
1,574
1,575
1,576
1,577
1,578
1,579
1,580
1,581
1,582
1,583
1,584
1,585
1,586
1,587
1,588
1,589
1,590
1,591
1,592
1,593
1,594
1,595
1,596
1,597
1,598
1,599
1,600
1,601
1,602
1,603
1,604
1,605
1,606
1,607
1,608
1,609
1,610
1,611
1,612
1,613
1,614
1,615
1,616
1,617
1,618
1,619
1,620
1,621
1,622
1,623
1,624
1,625
1,626
1,627
1,628
1,629
1,630
1,631
1,632
1,633
1,634
1,635
1,636
1,637
1,638
1,639
1,640
1,641
1,642
1,643
1,644
1,645
1,646
1,647
1,648
1,649
1,650
1,651
1,652
1,653
1,654
1,655
1,656
1,657
1,658
1,659
1,660
1,661
1,662
1,663
1,664
1,665
1,666
1,667
1,668
1,669
1,670
1,671
1,672
1,673
1,674
1,675
1,676
1,677
1,678
1,679
1,680
1,681
1,682
1,683
1,684
1,685
1,686
1,687
1,688
1,689
1,690
1,691
1,692
1,693
1,694
1,695
1,696
1,697
1,698
1,699
1,700
1,701
1,702
1,703
1,704
1,705
1,706
1,707
1,708
1,709
1,710
1,711
1,712
1,713
1,714
1,715
1,716
1,717
1,718
1,719
1,720
1,721
1,722
1,723
1,724
1,725
1,726
1,727
1,728
1,729
1,730
1,731
1,732
1,733
1,734
1,735
1,736
1,737
1,738
1,739
1,740
1,741
1,742
1,743
1,744
1,745
1,746
1,747
1,748
1,749
1,750
1,751
1,752
1,753
1,754
1,755
1,756
1,757
1,758
1,759
1,760
1,761
1,762
1,763
1,764
1,765
1,766
1,767
1,768
1,769
1,770
1,771
1,772
1,773
1,774
1,775
1,776
1,777
1,778
1,779
1,780
1,781
1,782
1,783
1,784
1,785
1,786
1,787
1,788
1,789
1,790
1,791
1,792
1,793
1,794
1,795
1,796
1,797
1,798
1,799
1,800
1,801
1,802
1,803
1,804
1,805
1,806
1,807
1,808
1,809
1,810
1,811
1,812
1,813
1,814
1,815
1,816
1,817
1,818
1,819
1,820
1,821
1,822
1,823
1,824
1,825
1,826
1,827
1,828
1,829
1,830
1,831
1,832
1,833
1,834
1,835
1,836
1,837
1,838
1,839
1,840
1,841
1,842
1,843
1,844
1,845
1,846
1,847
1,848
1,849
1,850
1,851
1,852
1,853
1,854
1,855
1,856
1,857
1,858
1,859
1,860
1,861
1,862
1,863
1,864
1,865
1,866
1,867
1,868
1,869
1,870
1,871
1,872
1,873
1,874
1,875
1,876
1,877
1,878
1,879
1,880
1,881
1,882
1,883
1,884
1,885
1,886
1,887
1,888
1,889
1,890
1,891
1,892
1,893
1,894
1,895
1,896
1,897
1,898
1,899
1,900
1,901
1,902
1,903
1,904
1,905
1,906
1,907
1,908
1,909
1,910
1,911
1,912
1,913
1,914
1,915
1,916
1,917
1,918
1,919
1,920
1,921
1,922
1,923
1,924
1,925
1,926
1,927
1,928
1,929
1,930
1,931
1,932
1,933
1,934
1,935
1,936
1,937
1,938
1,939
1,940
1,941
1,942
1,943
1,944
1,945
1,946
1,947

Match case Limit results 1 per page

Version

Description

9.8(2.0)

Introduced on the S3100 series.

9.8(1.0)

Introduced on the Z9100–ON.

9.8(0.0P5)

Introduced on the S4048-ON.

9.8(0.0P2)

Introduced on the S3048-ON.

9.7(0.0)

Introduced on the S6000–ON.

9.4(0.0)

Added support for

ﬂow-based

monitoring on the S4810, S4820T, S6000, and Z9000

platforms.

9.3(0.0)

Added support for logging of ACLs on the S4810, S4820T, and Z9000 platforms.

Usage Information

When the

conﬁgured

maximum threshold is exceeded, generation of logs is stopped. When the interval at which

ACL logs are

conﬁgured

to be recorded expires, the subsequent, fresh interval timer is started and the packet

count for that new interval commences from zero. If ACL logging was stopped previously because the

conﬁgured

threshold is exceeded, it is re-enabled for this new interval.

If ACL logging is stopped because the

conﬁgured

threshold is exceeded, it is re-enabled after the logging interval

period elapses. ACL logging is supported for standard and extended IPv4 ACLs, IPv6 ACLs, and MAC ACLs. You

can

conﬁgure

ACL logging only on ACLs that are applied to ingress interfaces; you cannot enable logging for ACLs

that are associated with egress interfaces.

You can activate

ﬂow-based

monitoring for a monitoring session by entering the

flow-based enable

command in the Monitor Session mode. When you enable this capability,

traﬃc

with particular

ﬂows

that are

traversing through the ingress and egress interfaces are examined and, appropriate ACLs can be applied in both

the ingress and egress direction. Flow-based monitoring conserves bandwidth by monitoring only

speciﬁed

traﬃc

instead all

traﬃc

on the interface. This feature is particularly useful when looking for malicious

traﬃc.

It is available

for Layer 2 and Layer 3 ingress and egress

traﬃc.

You may specify

traﬃc

using standard or extended access-lists.

This mechanism copies all incoming or outgoing packets on one port and forwards (mirrors) them to another port.

The source port is the monitored port (MD) and the destination port is the monitoring port (MG).

Related Commands

•

deny

—

conﬁgure

ﬁlter

to drop packets.

•

permit

—

conﬁgure

ﬁlter

to forward packets.

deny tcp (for Extended IP ACLs)

Conﬁgure

ﬁlter

that drops transmission control protocol (TCP) packets meeting the

ﬁlter

criteria.

Syntax

deny tcp {

source mask

| any | host

ip-address

} [

bit

] [

operator port

[

port

]]

{

destination mask

| any | host

ip-address

} [ttl

operator

] [dscp] [

bit

]

[

operator port

[

port

]] [count [byte]] [order] [fragments] [log [interval

minutes

] [threshold-in-msgs [count]] [monitor]

To remove this

ﬁlter,

you have two choices:

•

Use the

no seq

sequence-number

command if you know the

ﬁlter’s

sequence number.

•

Use the

no deny tcp {

source mask

| any | host

ip-address

} {

destination mask

any | host

ip-address

}

command.

304

Access Control Lists (ACL)