3Com 3C13636 Configuration Manual page 754

3Com Router 3000 Ethernet Family
Configuration Guide
Enable IGMP on an interface
Configure IGMP proxy
Advanced configuration tasks of IGMP include:
Configure a router as a group member
Control the access to IP multicast group
Configure IGMP query interval
Configure IGMP version
Configure Other querier present interval
Configure IGMP Max query response time
Limit the number of IGMP groups on an interface
Configure Last member query interval
Configure Last member query count
Delete the IGMP group from the interface
3.2.1 Enabling Multicast
Multicast-related configuration will not take effect if multicast is not enabled.
Refer to "Chapter 2 Common Multicast Configuration".
3.2.2 Enabling IGMP on an Interface
This configuration task is to enable IGMP on the interface which needs to perform
multicast membership maintenance. You should execute this operation before other
IGMP configurations.
Perform the following configuration in interface view.
Table 3-1 Enable IGMP on the interface
Enable IGMP on the current interface
Disable IGMP on the current interface
By default, IGMP is disabled on the interface.
Note:
When running multicast, if the Ethernet interface of a router is configured with a
secondary IP address, the Ethernet interfaces of other routers in the same segment
must be configured with secondary IP addresses too, furthermore, all of these
secondary IP address must be in the same segment.
Operation
3Com Corporation
3-4
Chapter 3 IGMP Configuration
Command
igmp enable
undo igmp enable