Reference Guide

Access Control Lists (ACL) | 207
But an ACL rule with TCP port lt 1023 takes only one entry in the CAM:
Related
Commands
permit udp
c e s z
Configure a filter to pass UDP packets meeting the filter criteria.
Syntax
permit udp {source mask | any | host ip-address} [operator port [port]] {destination mask |
any | host ip-address} [dscp] [operator port [port]] [count [byte] | log] [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 permit udp {source mask | any | host ip-address} {destination mask | any |
host ip-address} command.
Parameters
Rule# Data Mask From To #Covered
1 0000000000000000 1111110000000000 0 1023 1024
Total Ports: 1024
ip access-list extended Create an extended ACL.
permit Assign a permit filter for IP packets.
permit udp Assign a permit filter for UDP packets.
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.
dscp
Enter this keyword to deny a packet based on DSCP value.
Range: 0-63
operator
(OPTIONAL) Enter one of the following logical operand:
•
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
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.
log (OPTIONAL, E-Series only) Enter the keyword log to enter ACL matches in the log.