R2#sh run | b Lo
interface Loopback0
 ip address 223.254.254.254 255.255.255.255
 ip pim sparse-dense-mode
!
ip pim rp-candidate Loopback0 interval 5
ip msdp peer 180.40.7.3
!


R3#sh run | b Lo
interface Loopback0
 ip address 223.254.254.254 255.255.255.255
 ip pim sparse-dense-mode
!
ip pim rp-candidate Loopback0 group-list NoGroup interval 5
ip msdp peer 180.40.7.2
!