Configuring An Advanced Ipv4 Acl - 3Com 4210G Series Configuration Manual

<Sysname> system-view
[Sysname] acl number 2000
[Sysname-acl-basic-2000] rule deny source 1.1.1.1 0
# Verify the configuration.
[Sysname-acl-basic-2000] display acl 2000
Basic ACL 2000, named -none-, 1 rule,
ACL's step is 5
rule 0 deny source 1.1.1.1 0 (5 times matched)

Configuring an Advanced IPv4 ACL

Advanced IPv4 ACLs match packets based on source IP address, destination IP address, protocol
carried over IP, and other protocol header fields, such as the TCP/UDP source port number, TCP/UDP
destination port number, TCP flag, ICMP message type, and ICMP message code.
In addition, advanced IPv4 ACLs allow you to filter packets based on three priority criteria: type of
service (ToS), IP precedence, and differentiated services codepoint (DSCP) priority.
Advanced IPv4 ACLs are numbered in the range 3000 to 3999. Compared with basic IPv4 ACLs, they
allow of more flexible and accurate filtering.
Configuration Prerequisites
If you want to reference a time range in a rule, define it with the time-range command first.
Configuration Procedure
Follow these steps to configure an advanced IPv4 ACL:
To do...
Enter system view
Create an advanced
IPv4 ACL and enter its
view
Use the command...
system-view
acl number acl-number [ name
acl-name ] [ match-order { auto |
config } ]
14-4
Remarks
––
Required
The default match order is config.
If you specify a name for an IPv4
ACL when creating the ACL, you
can use the acl name acl-name
command to enter the view of the
ACL later.