Reference Guide

228 | Access Control Lists (ACL)
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Related
Commands
permit udp
c e s
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
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.