R1#sh run | b Ethe
interface Ethernet0/0
 ip address 17.57.100.1 255.255.255.0
 ip pim sparse-dense-mode
 ip multicast rate-limit in group-list 2 video 80
 ip igmp access-group 1
 half-duplex
!
access-list 2 permit 239.0.0.0 0.255.255.255
!