Users Guide

them to another port. The source port is the monitored port (MD) and the destination
port is the monitoring port (MG).
Related
Commands
• ip access-list extended — create an extended ACL.
• permit tcp — assign a permit filter for TCP packets.
• permit udp — assign a permit filter for UDP packets.
permit (for Standard MAC ACLs)
To forward packets from a specific source MAC address, configure a filter.
Syntax
permit {any | mac-source-address [mac-source-address-mask]} [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 if you know the filter’s sequence
number.
• Use the no permit {any | mac-source-address mac-source-address-
mask} 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
interval 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 5 minutes. By default, flow-
based monitoring is not enabled.
Access Control Lists (ACL) 375