Reference Guide

Access Control Lists (ACL) | 103
Defaults
Not configured.
Command Modes
CONFIGURATION-IP ACCESS-LIST-EXTENDED
Command
History
Usage
Information
The order option is relevant in the context of the Policy QoS feature only. For more information, refer
to the Quality of Service (QoS) chapter of the FTOS Configuration Guide.
In the MXL Switch, you can configure either count (packets) or count (bytes). However, for an ACL
with multiple rules, you can configure some ACLs with count (packets) and others as count (bytes) at
any given time.
Related
Commands
deny icmp
Configure a filter to drop all or specific ICMP messages.
Syntax
deny icmp {source mask | any | host ip-address} {destination mask | any | host ip-address} [dscp]
[message-type] [count [byte]] [order] [fragments]
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 icmp {source mask | any | host ip-address} {destination mask | any | host
ip-address} command.
Parameters
byte (OPTIONAL) Enter the keyword byte to count bytes processed by the filter.
dscp (OPTIONAL) Enter the keyword dscp to match to the IP DSCP values.
order (OPTIONAL) Enter the keyword order to specify the QoS 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).
fragments
Enter the keyword fragments to use ACLs to control packet fragments.
Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module
deny tcp Assigns a filter to deny TCP packets.
deny udp Assigns a filter to deny UDP packets.
ip access-list extended Creates an extended ACL.
source
Enter the IP address of the network or host from which the packets were sent.
mask
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.
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.
destination
Enter the IP address of the network or host to which the packets are sent.
dscp
Enter this keyword to deny a packet based on DSCP value.
Range: 0-63