Configuring Advanced Acl - 3Com WX3000 Series Operation Manual

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) priority.
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
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
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...
Enter system view
Create an advanced
ACL and enter
advanced ACL view
Define an ACL rule
Assign a description
string to the ACL rule
Assign a description
string to the ACL
Note that:
With the config match order specified for the advanced ACL, you can modify any existent rule. The
unmodified part of the rule remains. With the auto match order specified for the ACL, you cannot
modify any existent rule; otherwise the system prompts error information.
If you do not specify the rule-id argument when creating an ACL rule, the rule will be numbered
automatically. If the ACL has no rules, the rule is numbered 0; otherwise, it is the maximum rule
number plus one.
The content of a modified or created rule cannot be identical with the content of any existing rules;
otherwise the rule modification or creation will fail, and the system prompts that the rule already
exists.
Use the command...
system-view
acl number acl-number
[ match-order { auto | config } ]
rule [ rule-id ] { permit | deny }
protocol [ rule-string ]
rule rule-id comment text
description text
1-6
Configuring Time
Remarks
—
Required
config by default
Required
For information about protocol and
rule-string, refer to ACL Command.
Optional
No description by default
Optional
No description by default
Range.