TP-Link T2600G Series User Manual page 344

Configuring Layer 2 Multicast
Switch(config)#end
Switch#copy running-config startup-config
The following example shows how to enable IGMP authentication on port 1/0/1-3:
Switch#configure
Switch(config)#interface range gigabitEhternet 1/0/1-3
Switch(config-if-range)#ip igmp snooping authentication
Switch(config-if-range)#show ip igmp snooping interface gigabitEthernet 1/0/1-3
authentication
Port
-----------
Gi1/0/1
Gi1/0/2
Gi1/0/3
Switch(config)#end
Switch#copy running-config startup-config
IGMP-Authentication
-------------------------
enable
enable
enable
IGMP Snooping Configuration
User Guide 315