The igmp-snooping group-policy command limits the range of multicast groups that hosts can join.
The undo igmp-snooping group-policy command cancels the configuration.
By default, hosts can join any multicast group.
| Parameter | Description | Value |
|---|---|---|
| acl-number |
Specifies the number of an ACL. |
The value is an integer ranging from 2000 to 3999. |
| acl-name acl-name |
Specifies the name of a named ACL. |
The value is a string of 1 to 64 case-sensitive characters, spaces not supported. The name must start with a letter or digit, and cannot contain only digits. |
| version number |
Specifies the version number of IGMP packets. |
The value is an integer that is 1, 2, or 3. |
Usage Scenario
The igmp-snooping group-policy command is used to limit the range of multicast groups that user hosts can join.
Prerequisites
IGMP snooping has been enabled globally and in a BD.
Rules have been configured for a specified basic ACL.Configuration Impact
After the igmp-snooping group-policy command is run, user hosts cannot join multicast groups beyond the configured multicast group range. If the igmp-snooping group-policy command is run more than once, all configurations take effect.
Precautions
If no IGMP version is specified, the device will apply the configured group policy to all IGMP messages (IGMPv1/IGMPv2/IGMPv3 messages) and the ACL configured for the group policy must be a basic ACL.
<HUAWEI> system-view [~HUAWEI] acl number 2008 [*HUAWEI-acl-basic-2008] rule permit source 225.1.1.123 0 [*HUAWEI-acl-basic-2008] rule deny source any [*HUAWEI-acl-basic-2008] quit [*HUAWEI] bridge-domain 100 e-tree [*HUAWEI-bd-100] igmp-snooping enable [*HUAWEI-bd-100] igmp-snooping group-policy 2008