The acl name command creates an interface ACL and displays the ACL view. If the interface ACL already exists, this command directly displays the ACL view.
The undo acl name command deletes a created interface ACL.
By default, no interface ACL is created.
| Parameter | Description | Value |
|---|---|---|
| interface-based-acl-name |
Creates an interface ACL with a name. |
The value is a string of 1 to 64 case-sensitive characters, spaces not supported. The name must start with a letter or digit, and cannot contain only digits. |
| interface |
Creates an interface ACL with a keyword. |
- |
| match-order |
Indicates the order in which interface ACL rules are matched. |
- |
| config |
Indicates the configuration order, meaning that ACL rules are matched in the order they are configured. This mechanism applies only when rule numbers are not specified. If rule numbers are specified, the ACL rules are matched based on the numbers in ascending order. |
- |
| auto |
Indicates the automatic order, meaning that ACL rules are matched based on the depth-first principle.
|
- |
| number interface-based-acl-number |
Creates an interface ACL with a number. |
The value is an integer ranging from 1000 to 1999. |
Usage Scenario
An interface ACL defines rules for filtering packets based on the inbound interfaces of packets. To create an interface ACL, run the acl command.
Configuration Impact
The undo acl all command deletes all types of ACLs on a device. If the ACLs being deleted are applied to services, these services are interrupted. Before deleting an ACL, ensure that the ACL is not referenced by services.
Follow-up Procedure
Run the rule command to configure a rule for a created interface ACL. Then the ACL rule can be applied to match packets.
Run the description command to configure a description for a created interface ACL. The description can contain the functions of the interface ACL, facilitating applications.