beautypg.com

Configuration prerequisites, Configuration procedure – H3C Technologies H3C S3100 Series Switches User Manual

Page 567

background image

1-10

Configuration prerequisites

z

To configure a time range-based IPv6 ACL rule, you need to create the corresponding time range

first. For information about time range configuration, refer to section

Configuring Time Range

.

z

The settings to be specified in the rule are determined.

Configuration procedure

Table 1-5 Define an IPv6 ACL rule

Operation

Command

Description

Enter system view

system-view

Configure an IPv6 ACL
template

ipv6-acl-template { dscp |
ip-protocol
| src-ip | dest-ip |
src-port
| dest-port |
icmpv6-type
| icmpv6-code } *

Required

By default, no IPv6 ACL
template is configured.

To specify the src-port,
dest-port, icmpv6-type or
icmpv6-code keyword in the
command, you need to specify
the ip-protocol keyword at
first.

Create an IPv6 ACL and enter
IPv6 ACL view

acl number acl-number

Required

Define an ACL rule

rule [ rule-id ] { permit | deny }
[ dscp rule-string rule-mask ]
[ ip-protocol rule-string
rule-mask ] [ src-ip
ipv6-address prefix-length ]
[ dest-ip ipv6-address
prefix-length
] [ [ src-port
rule-string rule-mask |
dest-port
rule-string
rule-mask ] * | [ icmpv6-type
rule-string rule-mask |
icmpv6-code
rule-string
rule-mask ] * ] [ time-range
time-name ]

Required

To specify the src-port or
dest-port keyword in the
command, you need to specify
the ip-protocol rule-string
rule-mask
combination as TCP
or UDP, that is, 0x06 or 0x11.
To specify the icmpv6-type or
icmpv6-code keyword, you
need to specify the ip-protocol
rule-string rule-mask
combination as ICMPv6, that is,
0x3a.

Assign a description string to
the ACL rule

rule rule-id comment text

Optional

No description by default

Assign a description string to
the ACL

description text

Optional

No description by default

Note that:

z

You can modify any existent rule of an IPv6 ACL. If you modify only the action to be taken or the

time range, the unmodified part of the rule remains the same. If you modify the contents of a

user-defined string, the new string overwrites the original one.

z

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, the number of the rule will

be the greatest rule number plus one. If the current greatest rule number is 65534, however, the

system will display an error message and you need to specify a number for the rule.

z

The content of a modified or created rule cannot be identical with that of any existing rule of the

ACL; otherwise the rule modification or creation will fail, and the system will prompt that the rule

already exists.