Reference Guide

packets on one port and forwards (mirrors) them to another port. The source port
is the monitored port (MD) and the destination port is the monitoring port (MG).
deny udp (for IPv6 ACLs)
Configure a filter to drop user datagram protocol (UDP) packets meeting the filter criteria.
Syntax
deny udp {source address mask | any | host ipv6-address}
[operator port [port]] {destination address | any | host ipv6-
address} [operator port [port]] [count [byte]] [log [interval
minutes] [threshold-in-msgs [count]] [monitor]
To remove this filter, you have two choices:
• Use the no seq sequence-number command syntax if you know the filter’s
sequence number
• Use the no deny udp {source address mask | any | host ipv6-
address} {destination address | any | host ipv6-address}
command
Parameters
log (OPTIONAL) Enter the keyword log to enable the triggering
of ACL log messages.
threshold-in
msgs count
(OPTIONAL) Enter the threshold-in-msgs keyword
followed by a value to indicate the maximum number of ACL
logs that can be generated, exceeding which the generation
of ACL logs is terminated. with the seq, permit, or deny
commands. The threshold range is from 1 to 100.
interval
minutes
(OPTIONAL) Enter the keyword interval followed by the
time period in minutes at which ACL logs must be generated.
The threshold range is from 1 to 10 minutes.
monitor (OPTIONAL) Enter the keyword monitor when the rule is
describing the traffic that you want to monitor and the ACL
in which you are creating the rule is applied to the monitored
interface.
Defaults By default, 10 ACL logs are generated if you do not specify the threshold explicitly.
The default frequency at which ACL logs are generated is five minutes. By default,
flow-based monitoring is not enabled.
Command
Modes
ACCESS-LIST
Command
History
Version 9.4(0.0) Added support for flow-based monitoring on the S4810,
S4820T, S6000, Z9000, and MXL 10/40GbE Switch IO
Module platforms.
Version 9.3(0.0) Added support for logging of ACLs on the S4810, S4820T,
Z9000, and MXL 10/40GbE Switch IO Module platforms.
Access Control Lists (ACL)
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