R3102-R3103-HP 6600/HSR6600 Routers IP Multicast Configuration Guide

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Ste
p
Command Remarks
2. Enter VLAN view. vlan vlan-id N/A
3. Enable IGMP snooping
proxying in the VLAN.
igmp-snooping proxying enable Disabled by default.
Configuring the source IP addresses for the IGMP messages
sent by the proxy
You can set source the IP addresses for the IGMP reports and leave messages that the IGMP snooping
proxy sends on behalf of its attached hosts.
To configure the source IP addresses for the IGMP messages sent by the proxy in a VLAN:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter VLAN view. vlan vlan-id N/A
3. Configure the source IP
address for the IGMP
reports that the proxy sends.
igmp-snooping report source-ip
{ ip-address | current-interface }
The default is 0.0.0.0.
4. Configure the source IP
address for the IGMP leave
messages that the proxy
sends.
igmp-snooping leave source-ip
{ ip-address | current-interface }
The default is 0.0.0.0.
Configuring IGMP snooping policies
This section describes how to configure IGMP snooping policies.
Configuration prerequisites
Before you configure IGMP snooping policies, complete the following tasks:
• Enable IGMP snooping for 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.
Configuring a multicast group filter
On an IGMP snooping-enabled router, you can configure a multicast group filter to limit multicast
programs available to users.
In an application, when a user requests a multicast program, the user's host initiates an IGMP report.
After receiving this report message, the router resolves the multicast group address in the report and looks
up the ACL. If a match is found to permit the port that received the report to join the multicast group, the
router creates an IGMP snooping forwarding entry for the multicast group and adds the port to the
forwarding entry. Otherwise, the router drops this report message. In this case, the multicast data for the
multicast group is not sent to this port, and the user cannot retrieve the program.