Reference Guide

Access Control Lists (ACL) | 127
Defaults
Not configured.
Command Modes
CONFIGURATION-EXTENDED-ACCESS-LIST
Command
History
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.
The S-Series cannot count both packets and bytes, so when you enter the count byte options, only
bytes are incremented.
Most ACL rules require one entry in the CAM. However, rules with TCP and UDP port operators (gt,
lt, range) may require more than one entry. The range of ports is configured in the CAM based on bit
mask boundaries; the space required depends on exactly what ports are included in the range.
For example, an ACL rule with TCP port range 4000 - 8000 uses 8 entries in the CAM:
Rule# Data Mask From To #Covered
port port
Enter the application layer port number. Enter two port numbers if using the
range logical operand.
Range: 0 to 65535.
The following list includes some common TCP port numbers:
• 23 = Telnet
• 20 and 21 = FTP
• 25 = SMTP
• 169 = SNMP
destination
Enter the IP address of the network or host to which the packets are 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.
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.
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 9.0.2.0 Introduced on S6000
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.1.0
Added
dscp keyword.
Version 9.0.2.0 Allows ACL control of fragmented packets for IP (Layer 3) ACLs.
Version 9.0.2.0 Added support for S-Series
Version 6.5.10
Expanded to include the optional QoS
order priority for the ACL entry.
Note: When ACL logging and byte counters are configured simultaneously, byte counters
may display an incorrect value. Configure packet counters with logging instead.