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Dell Command Line Reference Guide for the S4048–ON System 9.14.2.8

deny

To drop packets with a certain IP address, configure a filter.

Syntax
deny {source | any | host {ip-address}} [count [bytes] | log] [dscp value] [ecn value] [fragments] [monitor] [no-drop] [order]
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 {source [mask] | any | host ip-address} command.
Parameters
source
Enter the IP address in dotted decimal format of the network from which the packet was sent.
any
Enter the keyword any to specify that all routes are subject to the filter.
host ip-address
Enter the keyword host and then enter the IP address to specify a host IP address only.
count
(OPTIONAL) Enter the keyword count to count the packets.
bytes
(OPTIONAL) Enter the keyword bytes to count the bytes.
log
(OPTIONAL) Enter the keyword log to enter ACL matches in the log.
dscp
(OPTIONAL) Enter the keyword dcsp to match the IP DSCP values. The range is from 0 to 63.
ecn
(OPTIONAL) Enter the keyword ecn to match the ECN bits. The range is from 0 to 3.
order
(OPTIONAL) Enter the keyword order to specify the QoS order for the ACL entry. The range is from 0 to 254 (where 0 is the highest priority and 254 is the lowest; lower-order numbers have higher priority). If you do not use the keyword order, the ACLs have the lowest order by default (255).
monitor
(OPTIONAL) Enter the keyword monitor to describe the traffic that you want to monitor and the ACL in which you are creating the rule is applied to the monitored interface.
NOTE For more information, see “Flow-based Monitoring” in the Port Monitoring section of the Dell EMC Networking OS Configuration Guide.
fragments
Enter the keyword fragments to use ACLs to control packet fragments.
no-drop
Enter the keywords no-drop to match only the forwarded packets.
Defaults
Not configured.
Command Modes
CONFIGURATION-STANDARD-ACCESS-LIST
Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Version
Description
9.12(0.0)
Removed the session–ID option from the monitor parameter.
9.11(0.0)
Added support for session–ID to the monitor parameter.
9.10(0.1)
Introduced on the S6010-ON and S4048T-ON.
9.10(0.0)
Introduced on the S3148.
9.10(0.0)
Introduced on the S6100-ON.
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.
9.8(0.0)
Added the no-drop parameter.
9.7(0.0)
Introduced on the S6000–ON.
9.2(1.0)
Introduced on the Z9500.
9.0.2.0
Introduced on the S6000.
8.3.19.0
Introduced on the S4820T.
8.3.11.1
Introduced on the Z9000.
8.3.7.0
Introduced on the S4810.
8.3.1.0
Add the DSCP value for ACL matching.
8.2.1.0
Allows ACL control of fragmented packets for IP (Layer 3) ACLs.
8.1.1.0
Introduced on the E-Series.
7.6.1.0
Introduced on the S-Series.
7.5.1.0
Introduced on the C-Series.
7.4.1.0
Added support for the non-contiguous mask and added the monitor option.
6.5.1.0
Expanded to include the optional QoS order priority for the ACL entry.
Usage Information

The order option is relevant in the context of the Policy QoS feature only. For more information, see the Quality of Service section in the Dell EMC Networking OS Configuration Guide.

The software cannot count both packets and bytes; when you enter the count byte options, only bytes increment.

Related Commands

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