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CAUTION:
The source address of IGMP query messages might affect the IGMP querier election within the se
ment.
Configuring IGMP snooping proxying
Configuration prerequisites
Before you configure IGMP snooping proxying in a VLAN, complete the following tasks:
• Enable IGMP snooping in the VLAN
• Determine the source IP address for the IGMP reports sent by the proxy
• Determine the source IP address for the IGMP leave messages sent by the proxy
Enabling IGMP snooping proxying
The IGMP snooping proxying function works on a per-VLAN basis. After you enable the function in a
VLAN, the device works as the IGMP snooping proxy for the downstream hosts and upstream router in
the VLAN.
Follow these steps to enable IGMP snooping proxying in a VLAN:
To do... Use the command... Remarks
Enter system view system-view —
Enter VLAN view vlan vlan-id —
Enable IGMP snooping
proxying in the VLAN
igmp-snooping proxying enable
Required
Disabled by default.
Configuring a source IP address for the IGMP messages sent by
the proxy
You can set the source IP addresses in the IGMP reports and leave messages that the IGMP snooping
proxy sends on behalf of its attached hosts.
Follow these steps to configure the source IP addresses for the IGMP messages that the IGMP snooping
proxy sends on behalf of its attached hosts in a VLAN:
To do... Use the command... Remarks
Enter system view system-view —
Enter VLAN view vlan vlan-id —
Configure a source IP address
for the IGMP reports that the
proxy sends
igmp-snooping report source-ip { ip-
address | current-interface }
Required
The default is 0.0.0.0.
Configure a source IP address
for the IGMP leave messages
that the proxy sends
igmp-snooping leave source-ip { ip-
address | current-interface }
Required
The default is 0.0.0.0.
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