Reference Guide

134 | Access Control Lists (ACL)
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1 0000111110100000 1111111111100000 4000 4031 32
2 0000111111000000 1111111111000000 4032 4095 64
3 0001000000000000 1111100000000000 4096 6143 2048
4 0001100000000000 1111110000000000 6144 7167 1024
5 0001110000000000 1111111000000000 7168 7679 512
6 0001111000000000 1111111100000000 7680 7935 256
7 0001111100000000 1111111111000000 7936 7999 64
8 0001111101000000 1111111111111111 8000 8000 1
Total Ports: 4001
But an ACL rule with TCP port lt 1023 takes only one entry in the CAM:
Rule# Data Mask From To #Covered
1 0000000000000000 1111110000000000 0 1023 1024
Total Ports: 1024
Related
Commands
permit udp
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]] [order] [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
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.
S6000
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