5 
(Optional.) Configuring packet filtering with ACLs 
 
Configuring a basic ACL 
This section describes procedures for configuring IPv4 and IPv6 basic ACLs. 
Configuring an IPv4 basic ACL 
IPv4 basic ACLs match packets based only on source IP addresses. 
To configure an IPv4 basic ACL: 
 
1.  Enter system view. 
system-view 
N/A 
2.  Create an IPv4 basic ACL 
and enter its view. 
acl basic
 { acl-number | 
name
 
acl-name } [ 
match-order
 { 
auto
 | 
config
 } ] 
By default, no ACL exists. 
The value range for a numbered 
IPv4 basic ACL is 2000 to 2999. 
Use the 
acl basic
 acl-number 
command to enter the view of a 
numbered IPv4 basic ACL. 
Use the 
acl basic
 
name
 
acl-name command to enter the 
view of a named IPv4 basic ACL. 
 
3.  (Optional.) Configure a 
description for the IPv4 basic 
ACL. 
description
 text
 
By default, an IPv4 basic ACL 
does not have a description. 
4.  (Optional.) Set the rule 
numbering step. 
step
 step-value
 
By default, the rule numbering 
step is 5 and the start rule ID is 0. 
5.  Create or edit a rule. 
rule
 [ rule-id ] { 
deny
 | 
permit
 } 
[ 
fragment 
|
 source
 
{ source-address source-wildcard 
| 
any
 } |
 time-range
 
time-range-name ] * 
By default, an IPv4 basic ACL 
does not contain any rules. 
6.  (Optional.) Add or edit a rule 
comment. 
rule
 rule-id 
comment
 text 
By default, no rule comment is 
configured.
 
 
Configuring an IPv6 basic ACL 
IPv6 basic ACLs match packets based only on source IP addresses. 
To configure an IPv6 basic ACL: 
 
1.  Enter system view. 
system-view 
N/A