Cisco 10000-2P2-2DC Software Guide - Page 309

Restrictions for Time-Based ACLs, Configuration Tasks for Time-Based ACLs, Creating a Time Range

Page 309 highlights

Chapter 12 Configuring Traffic Filtering Time-Based ACLs Restrictions for Time-Based ACLs The Time-Based ACLs feature has the following restrictions: • You can specify a time range for only IP extended access lists. Standard access lists are not supported. • An ACE that refers to a non-existent time-range entry is considered active. • You define time-based ACLs based on hours and minutes. You cannot specify seconds. Configuration Tasks for Time-Based ACLs To configure the Time-Based ACLs feature, perform the following configuration tasks: • Creating a Time Range, page 12-5 • Applying a Time Range to a Numbered Access Control List, page 12-6 • Applying a Time Range to a Named Access Control List, page 12-7 Creating a Time Range To create a time range, enter the following commands beginning in global configuration mode: Step 1 Command Router(config)# time-range name Step 2 Router(config-time-range)# periodic days-of-the-week hh:mm to [days-of-the-week] hh:mm Step 3 Router(config-time-range)# absolute [start time date] [end time date] Purpose Defines a named time range and enters time-range configuration mode. (Optional) Defines the periodic times that the time range is active. Valid values for days-of-the-week are Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday. You can also specify daily for Monday through Sunday, weekdays for Monday through Friday, and weekend for Saturday and Sunday. The hh:mm argument specifies hours:minutes in a 24 hour format. For example, 8:00 is 8:00 a.m. and 20:00 is 8:00 p.m. The ending days-of-the-week argument defaults to the value you specify in the beginning days-of-the-week argument. Specify the ending days-of-the-week only if it is different from the beginning days-of-the-week. (Optional) Defines the absolute times that the time range is active. You specify the start and end arguments in the format of hh:mm day month year, using a 24 hour format. The minimum start value is 00:00 1 January 1993. If you do not specify a start value, it defaults to right now. The maximum end value is 23:59 31 December 2035. The end value must be greater than the start value; otherwise, an error occurs. If you do not specify an end value, it defaults to forever after the starting time. Note You can specify only one absolute entry for each time range you create. OL-2226-23 Cisco 10000 Series Router Software Configuration Guide 12-5

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12-5
Cisco 10000 Series Router Software Configuration Guide
OL-2226-23
Chapter 12
Configuring Traffic Filtering
Time-Based ACLs
Restrictions for Time-Based ACLs
The Time-Based ACLs feature has the following restrictions:
You can specify a time range for only IP extended access lists. Standard access lists are not
supported.
An ACE that refers to a non-existent time-range entry is considered active.
You define time-based ACLs based on hours and minutes. You cannot specify seconds.
Configuration Tasks for Time-Based ACLs
To configure the Time-Based ACLs feature, perform the following configuration tasks:
Creating a Time Range, page 12-5
Applying a Time Range to a Numbered Access Control List, page 12-6
Applying a Time Range to a Named Access Control List, page 12-7
Creating a Time Range
To create a time range, enter the following commands beginning in global configuration mode:
Command
Purpose
Step 1
Router(config)#
time-range
name
Defines a named time range and enters time-range configuration
mode.
Step 2
Router(config-time-range)#
periodic
days-of-the-week
hh:mm
to
[
days-of-the-week
]
hh:mm
(Optional) Defines the periodic times that the time range is active.
Valid values for
days-of-the-week
are
Monday
,
Tuesday
,
Wednesday
,
Thursday
,
Friday
,
Saturday
, and
Sunday
. You can
also specify
daily
for Monday through Sunday,
weekdays
for
Monday through Friday, and
weekend
for Saturday and Sunday.
The
hh:mm
argument specifies hours:minutes in a 24 hour format.
For example, 8:00 is 8:00 a.m. and 20:00 is 8:00 p.m.
The ending
days-of-the-week
argument defaults to the value you
specify in the beginning
days-of-the-week
argument. Specify the
ending
days-of-the-week
only if it is different from the beginning
days-of-the-week
.
Step 3
Router(config-time-range)#
absolute
[
start
time
date
] [
end
time
date
]
(Optional) Defines the absolute times that the time range is active.
You specify the
start
and
end
arguments in the format of
hh:mm
day month year
, using a 24 hour format. The minimum
start
value
is
00:00 1 January 1993
. If you do not specify a start value, it
defaults to
right now.
The maximum
end
value is
23:59 31 December 2035
. The
end
value must be greater than the
start
value; otherwise, an error
occurs. If you do not specify an
end
value, it defaults to
forever
after the starting time
.
Note
You can specify only one absolute entry for each time
range you create.