Configuring an IPv6 advanced ACL
IPv6 advanced ACLs match packets based on the source IPv6 addresses, destination IPv6 addresses, packet priorities, protocols carried over IPv6, and other protocol header fields such as the TCP/UDP source port number, TCP/UDP destination port number, ICMPv6 message type, and ICMPv6 message code.
Compared to IPv6 basic ACLs, IPv6 advanced ACLs allow more flexible and accurate filtering.
To configure an IPv6 advanced ACL:
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Create an IPv6 advanced ACL and enter its view. | acl ipv6 number acl6-number [ name acl6-name ] [ match-order { auto | config } ] | By default, no ACL exists. IPv6 advanced ACLs are numbered in the range of 3000 to 3999. You can use the acl ipv6 name acl6-name command to enter the view of a named ACL. |
3. Configure a description for the IPv6 advanced ACL. | description text | Optional. By default, an IPv6 advanced ACL has no ACL description. |
4. Set the rule numbering step. | step step-value | Optional. The default setting is 5. |
5. Create or edit a rule. | rule [ rule-id ] { deny | permit } protocol [ { { ack ack-value | fin fin-value | psh psh-value | rst rst-value | syn syn-value | urg urg-value } * | established } | counting | destination { dest-address dest-prefix | dest-address/dest-prefix | any } | destination-port operator port1 [ port2 ] | dscp dscp | flow-label flow-label-value | fragment | icmp6-type { icmp6-type icmp6-code | icmp6-message } | logging | routing [ type routing-type ] | source { source-address source-prefix | source-address/source-prefix | any } | source-port operator port1 [ port2 ] | time-range time-range-name | vpn-instance vpn-instance-name ] * | By default IPv6 advanced ACL does not include any rule. Support for the counting keyword depends on the device model. The logging keyword takes effect only when the module using the ACL supports logging. |
6. Add or edit a rule comment. | rule rule-id comment text | Optional. By default, no rule comments are configured. |
7. Add or edit a rule range remark. | rule [ rule-id ] remark text | Optional. By default, no rule range remarks are configured. |