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<Sysname> system-view
[Sysname] time-range test from 15:00 1/28/2006 to 15:00 1/28/2008
[Sysname] display time-range test
Current time is 13:30:32 Apr/16/2005 Saturday
Time-range : test ( Inactive )
From 15:00 Jan/28/2006 to 15:00 Jan/28/2008
Configuring Basic ACL
A basic ACL filters packets based on their source IP addresses.
A basic ACL can be numbered from 2000 to 2999.
Configuration prerequisites
z
To configure a time range-based basic ACL rule, you need to create the corresponding time range
first. For information about time range configuration, refer to
Configuring Time Range
.
z
The source IP addresses based on which the ACL filters packets are determined.
Configuration procedure
Follow these steps to define a basic ACL rule:
To do...
Use the command...
Remarks
Enter system view
system-view
—
Create an ACL and enter basic
ACL view
acl number
acl-number
[
match-order
{
auto
|
config
} ]
Required
config
by default
Define an ACL rule
rule
[
rule-id
] {
deny
|
permit
}
[
rule-string
]
Required
For information about
rule-string
, refer to
ACL
Command
.
Configure a description string
to the ACL
description
text
Optional
Not configured by default
Note that:
z
With the
config
match order specified for the basic ACL, you can modify any existent rule. The
unmodified part of the rule remains. With the
auto
match order specified for the basic ACL, you
cannot modify any existent rule; otherwise the system prompts error information.
z
If you do not specify the
rule-id
argument when creating an ACL rule, the rule will be numbered
automatically. If the ACL has no rules, the rule is numbered 0; otherwise, the number of the rule will
be the greatest rule number plus one. If the current greatest rule number is 65534, however, the
system will display an error message and you need to specify a number for the rule.
z
The content of a modified or created rule cannot be identical with the content of any existing rule;
otherwise the rule modification or creation will fail, and the system prompts that the rule already
exists.
z
With the
auto
match order specified, the newly created rules will be inserted in the existent ones by
depth-first principle, but the numbers of the existent rules are unaltered.
