!

R2#sh run | b router
router eigrp 1
 network 2.2.2.2 0.0.0.0
 network 180.40.7.2 0.0.0.0
 no auto-summary
!
router ospf 1
 router-id 180.40.7.98
 log-adjacency-changes
 network 0.0.0.0 255.255.255.255 area 0


R3#sh run | b eigrp
router eigrp 1
 network 180.40.7.3 0.0.0.0
 network 180.40.7.129 0.0.0.0
 no auto-summary
!
router ospf 1
 router-id 180.40.7.129
 log-adjacency-changes
 network 0.0.0.0 255.255.255.255 area 0


R4#sh run | b router
router eigrp 1
 network 4.4.4.4 0.0.0.0
 network 180.40.7.130 0.0.0.0
 no auto-summary
!
router ospf 1
 log-adjacency-changes
 network 0.0.0.0 255.255.255.255 area 0
!

interface Tunnel0
 ip address 24.24.24.4 255.255.255.0
 ip pim sparse-dense-mode
 ip ospf cost 1
 tunnel source Loopback0
 tunnel destination 2.2.2.2