R1#sh run | b interface Loopback0
interface Loopback0
 ip address 223.1.1.1 255.255.255.0
!
interface Tunnel0
 ip address 17.13.13.1 255.255.255.0
 tunnel source Loopback0
 tunnel destination 222.1.1.3
!
router eigrp 100
 redistribute rip metric 128 10000 255 1 1500
 network 180.40.7.66 0.0.0.0
 network 208.28.1.66 0.0.0.0
 neighbor 180.40.7.65 Serial0/0.2
 auto-summary
!
router ospf 1
 log-adjacency-changes
 network 17.0.0.0 0.255.255.255 area 0
!
router rip
 version 2
 redistribute eigrp 100 metric 4
 passive-interface Ethernet0/0
 offset-list 1 out 3
 network 208.28.1.0
 network 223.1.1.0
 maximum-paths 3
 no auto-summary
!

R3#sh run | b interface Loopback0
interface Loopback0
 ip address 222.1.1.3 255.255.255.0
!
interface Tunnel0
 ip address 17.13.13.3 255.255.255.0
 tunnel source Loopback0
 tunnel destination 223.1.1.1
!
router ospf 1
 log-adjacency-changes
 network 17.0.0.0 0.255.255.255 area 0
!
router rip
 version 2
 no validate-update-source
 timers basic 30 180 0 240
 network 180.40.0.0
 network 208.28.1.0
 network 222.1.1.0
 neighbor 208.28.1.3
 neighbor 208.28.1.1
 maximum-paths 3
 no auto-summary
!


R4#sh run | b router
router ospf 1
 log-adjacency-changes
 network 17.0.0.0 0.255.255.255 area 0
!
S6#sh run | b router
router ospf 1
 log-adjacency-changes
 network 17.0.0.0 0.255.255.255 area 0
!