(Optional) Configuring the Range of Multicast Groups That an Interface Can Join
Context
To control the range of multicast groups that hosts on an interface's network segment can join, use an access control list (ACL) to filter Membership Report messages received on the interface. This ACL allows the router to maintain only memberships of the interface in these multicast groups. For details on how to configure an ACL, see "ACL Configuration" in the NetEngine AR Configuration Guide - Security.
Procedure
- Run system-view
The system view is displayed.
- Run interface interface-type interface-number
The interface view is displayed.
- Run igmp group-policy { acl-number | acl-name acl-name } [ 1 | 2 | 3 ]
An ACL is applied to specify the range of multicast groups that the interface can join.
By default, an interface can join any multicast group.
When configuring an ACL rule for an interface, use the permit parameter in the rule command to allow hosts connected to the interface to join groups within the specified range. If no rule is configured in the ACL, hosts connected to the interface cannot join any groups.
