Setting the Range of Multicast Groups that an Interface Can Join

Procedure

1. Run system-view

   The system view is displayed.

2. Configure a basic or an advanced ACL as needed.

   • Configure a basic ACL.

     1. Run acl [ number ] basic-acl-number [ match-order { auto | config } ]

        A basic ACL is created, and the basic ACL view is displayed.

     2. Run rule [ rule-id ] [ name rule-name ] { deny | permit } source { source-ip-address { source-wildcard | 0 } | any }

        Rules are configured for the basic ACL.

   • Configure an advanced ACL.

     1. Run acl { name advance-acl-name [ advance | [ advance ] number advance-acl-number ] | [ number ] advance-acl-number } [ match-order { config | auto } ]

        An advanced ACL is created, and the advanced ACL view is displayed.

     2. Run rule [ rule-id ] [ name rule-name ] { deny | permit } ip [ destination { destination-ip-address { destination-wildcard | 0 } | any } | source { source-ip-address { source-wildcard | 0 } | any } ] ^*

        Rules are configured for the advanced ACL.

   If a basic ACL is used, run the rule command and set the source parameter to a multicast group address.

   If an advanced ACL is used, run the rule command, set the source parameter to the address of the source that sends multicast data to multicast groups, and set the destination parameter to a multicast group address.

3. Run quit

   Return to the system view.

4. Run interface interface-type interface-number

   The interface view is displayed.

5. Run igmp group-policy { acl-number | acl-name acl-name } [ 1 | 2 | 3 ]

   An IGMP group policy is configured to limit the range of multicast groups that the interface can join.

   

   • If a multicast group matches an ACL rule and the action is permit, the interface allows hosts to join this group.
   • If a multicast group matches an ACL rule and the action is deny, the interface does not allow hosts to join this group.
   • If a multicast group does not match any ACL rule, the interface does not allow hosts to join this group.
   • If a specified ACL does not exist or does not contain rules, the interface does not allow hosts to join any multicast group.

6. Run commit

   The configuration is committed.