Reference Guide

Access Control Lists (ACL) | 213
Usage
Information
The order option is relevant in the context of the Policy QoS feature only. See the “Quality of
Service” chapter of the FTOS Configuration Guide for more information.
When you use the log option, CP processor logs details about the packets that match. Depending on
how many packets match the log entry and at what rate, the CP may become busy as it has to log these
packets’ details.
The monitor option is relevant in the context of flow-based monitoring only. See the Chapter 44, Port
Monitoring.
The C-Series and S-Series cannot count both packets and bytes, so when you enter the count byte
options, only bytes are incremented.
Related
Commands
ip access-list standard
c e s
Create a standard IP access list (IP ACL) to filter based on IP address.
Syntax
ip access-list standard access-list-name
Parameters
Defaults
All IP access lists contain an implicit “deny any,” that is, if no match occurs, the packet is dropped.
Command Modes
CONFIGURATION
Command
History
Usage
Information
FTOS supports one ingress and one egress IP ACL per interface.
Prior to 7.8.1.0, names are up to 16 characters long.
The number of entries allowed per ACL is hardware-dependent. Refer to your line card documentation
for detailed specification on entries allowed per ACL.
Note: When ACL logging and byte counters are configured simultaneously, byte counters
may display an incorrect value. Configure packet counters with logging instead.
ip access-list standard Configure a standard ACL.
permit Configure a permit filter.
access-list-name
Enter a string up to 140 characters long as the ACL name.
Version 8.1.1.0 Introduced on E-Series ExaScale
Version 7.8.1.0 Increased name string to accept up to 140 characters. Prior to 7.8.1.0, names are up to 16
characters long.
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.