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Configuration example, Configuring advanced acl, Configuration prerequisites – H3C Technologies H3C S3600 Series Switches User Manual

Page 712: Configuration procedure

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Configuration example

# Configure ACL 2000 to deny packets whose source IP addresses are 192.168.0.1.

system-view

[Sysname] acl number 2000

[Sysname-acl-basic-2000] rule deny source 192.168.0.1 0

# Display the configuration information of ACL 2000.

[Sysname-acl-basic-2000] display acl 2000

Basic ACL 2000, 1 rule

Acl's step is 1

rule 0 deny source 192.168.0.1 0

Configuring Advanced ACL

An advanced ACL can filter packets by their source and destination IP addresses, the

protocols carried by IP, and protocol-specific features such as TCP/UDP source and

destination ports, ICMP message type and message code.

An advanced ACL can be numbered from 3000 to 3999. Note that ACL 3998 and ACL 3999

cannot be configured because they are reserved for cluster management.

Advanced ACLs support analysis and processing of three packet priority levels: type of

service (ToS) priority, IP priority and differentiated services codepoint (DSCP).

Using advanced ACLs, you can define classification rules that are more accurate, more

abundant, and more flexible than those defined for basic ACLs.

Configuration prerequisites

z

To configure a time range-based advanced ACL rule, you need to create the

corresponding time ranges first. For information about of time range configuration,

refer to

Configuring Time Range

.

z

The settings to be specified in the rule, such as source and destination IP addresses,

the protocols carried by IP, and protocol-specific features, are determined.

Configuration procedure

Follow these steps to define an advanced ACL rule:

To do...

Use the command...

Remarks

Enter system view

system-view

Create an advanced ACL
and enter advanced ACL
view

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

Required

config by default

Define an ACL rule

rule [ rule-id ] { permit |
deny } protocol
[ rule-string ]

Required

For information about
protocol and rule-string,
refer to ACL Commands.

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