Configuration Guide
284
Configuring Layer 2 Multicast
IGMP Snooping Configurations
2.2 Using the CLI
2.2.1 Enabling IGMP Snooping Globally
Step 1
configure
Enter global configuration mode.
Step 2
ip igmp snooping
Enable IGMP Snooping Globally.
Step 3
end
Return to privileged EXEC mode.
Step 4
show ip igmp snooping
Show the basic IGMP snooping configuration.
Step 5
copy running-config startup-config
Save the settings in the configuration file.
2.2.2 Enabling IGMP Snooping on the Port
Step 1
configure
Enter global configuration mode.
Step 2
interface {fastEthernet
port
| range fastEthernet
port-list
| gigabitEthernet
port
| range
gigabitEthernet
port-list
| port-channel
port-channel-id
| range port-channe
port-channel-list
}
Enter interface configuration mode.
Step 3
ip igmp snooping
Enable IGMP Snooping on the specified port.
Step 4
end
Return to privileged EXEC mode.
Step 5
show ip igmp snooping
Show the basic IGMP snooping configuration.
Step 6
copy running-config startup-config
Save the settings in the configuration file.
The following example shows how to enable IGMP Snooping globally and enable IGMP
Snooping on port 1/0/3:
Switch#configure
Switch(config)#ip igmp snooping
