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Configuration Guide - IP Multicast

S7700 and S9700 V200R013C00

This document describes the configurations of IP multicast, including IP multicast basics, IGMP, MLD, IPv4 PIM, IPv6 PIM, MSDP, multicast VPN, layer 3 multicast CAC, IPv4 multicast route management, IPv6 multicast route management, IGMP snooping, MLD snooping, static multicast MAC address, multicast VLAN replication, layer 2 multicast CAC, multicast network management.
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(Optional) Configuring the Range of Multicast Groups That an Interface Can Join

(Optional) Configuring the Range of Multicast Groups That an Interface Can Join


To limit the range of IPv6 multicast groups that an interface can join, configure ACL6 rules to filter received Multicast Listener Report messages so that the interface maintains group membership only in the allowed multicast groups.

Before specifying the range of multicast groups that an interface can join, configure an IPv6 access control list (ACL6) to define the range of multicast groups. For details about the ACL6 configuration, see ACL Configuration in the S7700 and S9700 V200R013C00 Configuration Guide - Security.


  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

  3. (Optional) On an Ethernet interface, run undo portswitch

    The interface is switched to Layer 3 mode.

    By default, an Ethernet interface works in Layer 2 mode.

  4. Run mld group-policy { acl6-number | acl6-name acl6-name } [ 1 | 2 ]

    The range of multicast groups that the interface can join is configured.

    By default, an interface can join any multicast group.


    When configuring an ACL6 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 ACL6, hosts connected to the interface cannot join any multicast groups.

Updated: 2019-04-08

Document ID: EDOC1100065742

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