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NE20E-S2 V800R010C10SPC500 Configuration Guide - IP Services 01

This is NE20E-S2 V800R010C10SPC500 Configuration Guide - IP Services
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Configuring an Interface-based ACL6

Configuring an Interface-based ACL6

An interface-based ACL6 defines rules to filter packets.

Usage Scenario

Figure 11-1 Configuring an interface-based ACL6

As shown in Figure 11-1, an ACL6 based on interface1 is created on Device A to allow Device A to permit all the packets sent from Network A to the Internet and deny all packets sent from Network B to the Internet.

Configuration Procedures

Figure 11-2 Flowchart for configuring an interface-based ACL6

(Optional) Creating a Validity Period for an ACL6 Rule

You can create a validity period for an ACL6 rule to control network traffic in a specified period.

Context

To control certain types of traffic in a specified period, you can configure the validity period of an ACL6 rule to determine the time traffic passes through. For example, to ensure reliable transmission of video traffic at prime time at night, you need to limit the volume of traffic for common online users.

After this configuration task is performed, a time range is created. Then, you can specify the time range as the validity period when creating an ACL6 rule.

The validity period of an ACL6 rule can be either of the following types:

  • Absolute time range: The validity period is fixed.

  • Relative time range: The validity period is a periodic period, for example, each Monday.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run time-range time-name { start-time to end-time days &<1-7> | from time1 date1 [ to time2 date2 ] }

    A validity period is created.

    • You can configure up to 256 time ranges.
    • Up to 32 relative time ranges (periodic time ranges) and 12 absolute time ranges can share one time range name.

  3. Run commit

    The configuration is committed.

Creating an Interface-based ACL6

You can create an interface-based ACL6 and configure parameters for the ACL6.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run acl ipv6 { name interface-based-acl6-name interface | number interface-based-acl6-number } [ match-order { config | auto } ]

    An interface-based ACL6 is created.

    The interface-based ACL6 number ranges from 1000 to 1999.

  3. (Optional) Run step step

    An ACL6 step is set.

    You can use an ACL6 step to maintain ACL6 rules and add new ACL6 rules conveniently.
    NOTE:
    Assume that a user has created four rules numbered from 1 to 4 in an ACL6. The user can reconfigure the ACL6 step, for example, to 2 by running the step 2 command in the ACL6 view. The original rule numbers 1, 2, 3, and 4 are renumbered as 2, 4, 6, and 8, respectively. After that, the user can run the rule 3 xxxx command to add a rule numbered 3 between the renumbered rules 2 and 4.

  4. (Optional) Run description text

    The ACL6 description is configured.

    The description command configures a description for an ACL6 in any of the following situations:

    • A large number of ACL6s are configured, and their functions are difficult to identify.
    • An ACL6 is used at a long interval, and its function may be left forgotten.
    • Names of named ACL6s cannot fully explain the ACL6s' functions.

  5. Run commit

    The configuration is committed.

Configuring an Interface-based ACL6 Rule

Interface-based ACL6 rules are defined based on packets' inbound interfaces to filter packets.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run acl ipv6 { name interface-based-acl6-name interface | number interface-based-acl6-number } [ match-order { config | auto } ]

    The interface-based ACL6 view is displayed.

  3. Run rule [ rule-id ] [ name rule-name ] { deny | permit } interface { interface-type interface-number | any } [ time-range time-name ] *

    A rule is configured for the interface-based ACL6.

    • Adding new rules to an ACL6 will not affect the existing rules.

    • When an existing rule is edited and the edited contents conflict with the original contents, the edited contents take effect.

    NOTE:

    When you configure an interface-based ACL6:

    • If an interface is specified by configuring interface, the system filters only packets received by this specified interface.

    • If all interfaces are specified by configuring any, the system does not check packets' inbound interfaces, and considers that all packets have matched the rule and directly takes an action (deny or permit) on the packets.

    • If a validity period is specified by configuring time-range, the time range name specified by time-name must already exist. Otherwise, the configuration does not take effect.

  4. (Optional) Run rule description text

    The description for an ACL6 rule is configured.

    The description of an ACL6 rule can contain the functions of the ACL6 rule. Configuring a description for an ACL6 rule is recommended to prevent misuse of the rule in the following situations:
    • A large number of ACL6s are configured, and their functions are difficult to identify.
    • An ACL6 is used at a long interval, and its function may be left forgotten.

  5. Run commit

    The configuration is committed.

Verifying the Configuration of Interface-based ACL6

After configuring an interface-based ACL6, verify the configuration.

Prerequisites

An interface-based ACL6 has been configured.

Procedure

  • Run the display acl ipv6 { acl6-number | name acl6-name | all } command to check interface-based ACL6 configurations.
  • Run the display time-range { time-name | all } command to check the configuration of a specified or all validity periods.

Example

Run the display acl ipv6 command. The command output shows the ACL6 number, ACL6 rule number, and rule contents.

<HUAWEI> display acl ipv6 1200
Interface Based IPv6 ACL 1200,1 rule
IPv6 ACL's step is 5
rule 5 permit interface GigabitEthernet0/1/0 (1 times matched)

Run the display time-range command. The command output shows validity period configurations.

<HUAWEI> display time-range time1
Current time is 2006-3-15 14:19:16 Wednesday

Time-range : time1 ( Inactive )
 10:00 to 12:00 daily
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Updated: 2019-01-02

Document ID: EDOC1100055376

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