Reference Guide

138 | Access Control Lists (ACL)
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Defaults
Not configured
Command Modes
CONFIGURATION-EXTENDED-ACCESS-LIST
Command
History
ip Enter the keyword ip to configure a generic IP access list. The keyword ip specifies
that the access list will permit all IP protocols.
tcp Enter the keyword tcp to configure a TCP access list filter.
udp Enter the keyword udp to configure a UDP access list filter.
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.
operator
(OPTIONAL) Enter one of the following logical operands:
•
eq = equal to
•
neq = not equal to
•
gt = greater than
•
lt = less than
•
range = inclusive range of ports (you must specify two ports for the port
parameter.)
port port
(OPTIONAL) 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.
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.
dscp (OPTIONAL) Enter the keyword dcsp to match to the IP DCSCP 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 9.0.2.0 Introduced on the S6000
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.1.0 Add DSCP value for ACL matching.
Version 9.0.2.0 Allows ACL control of fragmented packets for IP (Layer 3) ACLs.
Version 7.6.1.0 Added support for S-Series
Version 6.5.10
Expanded to include the optional QoS
order priority for the ACL entry.