2-15z Source IP address for the IGMP reports sent by the proxyz Source IP address for the IGMP leave messages sent by the proxyEnabling IGMP Snooping ProxyingThe IGMP snooping Proxying function works on a per-VLAN basis. After you enable the function in aVLAN, the device works as the IGMP snooping proxy for the downstream hosts and upstream router inthe VLAN.Follow these steps to enable IGMP snooping Proxying in a VLAN:To do... Use the command... RemarksEnter system view system-view —Enter VLAN view vlan vlan-id —Enable IGMP snoopingProxying in the VLANigmp-snooping proxyingenableRequiredDisabled by default.Configuring a Source IP Address for the IGMP Messages Sent by the ProxyYou can set the source IP addresses in the IGMP reports and leave messages sent by the IGMPsnooping proxy on behalf of its attached hosts.Follow these steps to configure the source IP addresses for the IGMP messages sent by the IGMPsnooping proxy on behalf of its attached hosts in a VLAN:To do... Use the command... RemarksEnter system view system-view —Enter VLAN view vlan vlan-id —Configure a source IPaddress for the IGMP reportssent by the proxyigmp-snooping reportsource-ip { ip-address |current-interface }RequiredThe default is 0.0.0.0.Configure a source IPaddress for the IGMP leavemessages sent by the proxyigmp-snooping leavesource-ip { ip-address |current-interface }The default is 0.0.0.0.Configuring an IGMP Snooping PolicyConfiguration PrerequisitesBefore configuring an IGMP snooping policy, complete the following task:z Enable IGMP snooping in the VLAN.Before configuring an IGMP snooping policy, prepare the following data:z ACL rule for multicast group filteringz The maximum number of multicast groups that can pass the portsz 802.1p precedence for IGMP messages
