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version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
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hostname R4
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boot-start-marker
boot-end-marker
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no aaa new-model
no network-clock-participate slot 1 
no network-clock-participate wic 0 
ip cef
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no ip domain lookup
ip multicast-routing 
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interface Loopback0
 ip address 4.4.4.4 255.255.255.0
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interface Tunnel0
 ip address 24.24.24.4 255.255.255.0
 ip pim sparse-dense-mode
 keepalive 10 3
 tunnel source Loopback0
 tunnel destination 2.2.2.2
 no shutdown
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interface FastEthernet0/0
 ip address 180.40.7.130 255.255.255.224
 ip pim state-refresh origination-interval 8
 ip pim sparse-dense-mode
 ip igmp join-group 224.4.4.4
 speed auto
 duplex auto
 no shutdown
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interface Serial0/0
 no ip address
 shutdown
 no fair-queue
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interface FastEthernet0/1
 no ip address
 shutdown
 speed auto
 duplex auto
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interface Serial0/1
 no ip address
 shutdown
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interface Serial0/2
 no ip address
 shutdown
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router ospf 1
 log-adjacency-changes
 network 4.4.4.4 0.0.0.0 area 51
 network 180.40.7.130 0.0.0.0 area 51
 network 0.0.0.0 255.255.255.255 area 0
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ip http server
no ip http secure-server
ip pim bidir-enable
ip pim spt-threshold 1
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control-plane
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line con 0
 exec-timeout 0 0
 logging synchronous
line aux 0
line vty 0 4
 privilege level 15
 no login
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end