hostname R4
!
ip cef
!
interface Loopback0
 ip address 4.4.4.4 255.255.255.255
!
interface GigabitEthernet0/1
 ip address 192.168.34.4 255.255.255.0
!
router eigrp 1
 metric weights 0 0 0 1 0 0
 network 4.4.4.4 0.0.0.0
 network 192.168.34.0
!
end