Reference Guide

212 | Access Control Lists (ACL)
www.dell.com | support.dell.com
deny
c e s
Configure a filter to drop packets with a certain IP address.
Syntax
deny {source [mask] | any | host ip-address} [count [byte] | log] [dscp value] [order]
[monitor] [fragments]
To remove this filter, you have two choices:
• Use the no seq sequence-number command syntax if you know the filter’s sequence number
or
• Use the no deny {source [mask] | any | host ip-address} command.
Parameters
Defaults
Not configured.
Command Modes
CONFIGURATION-STANDARD-ACCESS-LIST
Command
History
source
Enter the IP address in dotted decimal format of the network from which the
packet was sent.
mask
(OPTIONAL) Enter a network mask in /prefix format (/x) or A.B.C.D. The mask,
when specified in A.B.C.D format, may be either contiguous or non-contiguous
(discontiguous).
any Enter the keyword any to specify that all routes are subject to the filter.
host ip-address Enter the keyword host followed by the IP address to specify a host IP address
only.
count (OPTIONAL) Enter the keyword count to count packets processed by the filter.
byte (OPTIONAL) Enter the keyword byte to count bytes processed by the filter.
log (OPTIONAL, E-Series only) Enter the keyword log to enter ACL matches in the
log.
dscp (OPTIONAL) Enter the keyword dcsp to match to the IP DCSCP values.
order (OPTIONAL) Enter the keyword order to specify the QoS order of priority for
the ACL entry.
Range: 0-254 (where 0 is the highest priority and 254 is the lowest; lower order
numbers have a higher priority)
Default: If the order keyword is not used, the ACLs have the lowest order by
default(255).
monitor (OPTIONAL) Enter the keyword monitor when the rule is describing the traffic
that you want to monitor and the ACL in which you are creating the rule will be
applied to the monitored interface. For details, see the section “Flow-based
Monitoring” in the Port Monitoring chapter of the FTOS Configuration Guide.
fragments Enter the keyword fragments to use ACLs to control packet fragments.
Version 8.3.1.0 Add DSCP value for ACL matching.
Version 8.2.1.0 Allows ACL control of fragmented packets for IP (Layer 3) ACLs.
Version 8.1.1.0 Introduced on E-Series ExaScale
Version 7.6.1.0 Added support for S-Series
Version 7.5.1.0 Added support for C-Series
Version 7.4.1.0
Added support for non-contiguous mask and added the
monitor option.
Version 6.5.1.0
Expanded to include the optional QoS
order priority for the ACL entry.