Cisco catalyst 3750 Command Reference Manual page 288

ip igmp snooping vlan mrouter
Examples This example shows how to configure a port as a multicast router port:
Switch(config)# ip igmp snooping vlan 1 mrouter interface gigabitethernet1/0/22
This example shows how to specify the multicast router learning method as CGMP:
Switch(config)# ip igmp snooping vlan 1 mrouter learn cgmp
You can verify your settings by entering the show ip igmp snooping privileged EXEC command.
Related Commands Command
ip igmp snooping report-suppression
show ip igmp snooping
show ip igmp snooping groups
show ip igmp snooping mrouter
show ip igmp snooping querier
Catalyst 3750 Switch Command Reference
2-258
Chapter 2 Catalyst 3750 Switch Cisco IOS Commands
Description
Enables IGMP report suppression.
Displays the snooping configuration.
Displays IGMP snooping multicast information.
Displays the IGMP snooping router ports.
Displays the configuration and operation information for
the IGMP querier configured on a switch.
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