#configure terminal | Enter configure mode. |
(config)#interface eth1 | Enter interface mode. |
(config-if)#ip address 192.168.1.57/24 | Assign IP address to an interface |
(config-if)#ip igmp proxy-service | Enable IGMP proxy service on the upstream interface. |
(config-if)#exit | Exit interface mode. |
(config)#exit | Exit Configure mode. |