H3C Technologies H3C S10500 Series Switches - Manual (Page 45)

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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.
Configuring an IGMP snooping policy
Configuration prerequisites
Before you configure an IGMP snooping policy, complete the following tasks:
• Enable IGMP snooping in the VLAN
• Determine the ACL rule for multicast group filtering
• Determine the maximum number of multicast groups that a port can join
• Determine the 802.1p precedence for IGMP messages