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Configuring an ipv4 advanced acl – H3C Technologies H3C SecBlade NetStream Cards User Manual

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To do…

Use the command…

Remarks

Create an IPv4 basic ACL and
enter its view

acl number acl-number [ name
acl-name ] [ match-order { auto |

config } ]

Required
By default, no ACL exists.
IPv4 basic ACLs are numbered in the

range 2000 to 2999.
You can use the acl name acl-name
command to enter the view of a named

IPv4 ACL.

Configure a description for the
IPv4 basic ACL

description text

Optional
By default, an IPv4 basic ACL has no
ACL description.

Set the rule numbering step

step step-value

Optional
5 by default.

Create or edit a rule

rule [ rule-id ] { deny | permit }
[ counting | fragment | logging |
source { sour-addr sour-wildcard |

any } ] *

Required
By default, an IPv4 basic ACL does not
contain any rule.

Configure or edit a rule
description

rule rule-id comment text

Optional
By default, an IPv4 ACL rule has no rule
description.

Configuring an IPv4 advanced ACL

IPv4 advanced ACLs match packets based on source IP addresses, destination IP addresses, packet

priorities, protocols over IP, and other protocol header information, such as TCP/UDP source and

destination port numbers, TCP flags, ICMP message types, and ICMP message codes.
Compared to IPv4 basic ACLs, IPv4 advanced ACLs allow more flexible and accurate filtering.
Follow these steps to configure an IPv4 advanced ACL:

To do…

Use the command…

Remarks

Enter system view

system-view

––

Create an IPv4 advanced
ACL and enter its view

acl number acl-number [ name acl-name ]
[ match-order { auto | config } ]

Required
By default, no ACL exists.
IPv4 advanced ACLs are
numbered in the range 3000 to

3999.
You can use the acl name acl-name

command to enter the view of a
named IPv4 ACL.

Configure a description for
the IPv4 advanced ACL

description text

Optional
By default, an IPv4 advanced ACL
has no ACL description.

Set the rule numbering step step step-value

Optional
5 by default.