2-6
Description
Use the igmp group-policy command to configure a multicast group filter on the current interface to
control the access to the multicast groups in the defined group range.
Use undo igmp group-policy command to remove the multicast group filter configured.
By default, no filter is configured; that is, a host can join any multicast group.
If you do not want the hosts on the network attached to the interface to join some multicast groups, use
this command to limit the range of the multicast groups served by the interface.
Related commands: igmp host-join.
Be sure that the Ethernet ports specified in the command belong to the VLAN interfaces on which the
command is configured, but not other VLAN interfaces.
Examples
# Configure a multicast group filter on VLAN-interface 10 so that the hosts on the subnet attached to the
interface can join only multicast group 225.1.1.1 and the interface accepts only IGMPv2 reports.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] acl number 2000
[Sysname-acl-basic-2000] rule permit source 225.1.1.1 0
[Sysname-acl-basic-2000] quit
[Sysname] interface Vlan-interface 10
[Sysname-Vlan-interface10] igmp group-policy 2000 2
igmp group-policy vlan
Syntax
igmp group-policy acl-number vlan vlan-id
undo igmp group-policy vlan vlan-id
View
Ethernet port view
Parameters
acl-number: Basic ACL number, defining a multicast group range. The value ranges from 2,000 to
2,999.
vlan vlan-id: Specifies the VLAN to which the current port belongs. The effective range for vlan-id is 1 to
4094.
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