!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
!
memory-size iomem 10
no aaa new-model
ip subnet-zero
!
!
no ip domain lookup
!
ip multicast-routing 
ip cef
!
!
!
!
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!
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interface Ethernet0/0
 ip address 17.57.100.1 255.255.255.0
 ip pim sparse-dense-mode
 ip multicast rate-limit in group-list Prob7 video 80
 ip igmp access-group Prob6
 ip sap listen
 half-duplex
 no shutdown
!
interface Serial0/0
 no ip address
 encapsulation frame-relay
 no shutdown
!
interface Serial0/0.1 point-to-point
 ip address 180.40.7.34 255.255.255.224
 ip pim sparse-dense-mode
 ip ospf network point-to-point
 shutdown
 frame-relay interface-dlci 103   
!
interface Serial0/0.2 point-to-point
 ip address 180.40.7.66 255.255.255.224
 ip pim sparse-dense-mode
 ip multicast helper-map 226.6.6.6 17.100.1.255 Prob9
 ip ospf network point-to-multipoint
 frame-relay interface-dlci 102   
 no shutdown
!
interface Ethernet0/1
 ip address 17.100.1.1 255.255.255.0
 ip directed-broadcast
 ip pim query-interval 90
 ip pim sparse-dense-mode
 ip igmp query-interval 90
 half-duplex
 no keepalive
 no shutdown
!
interface Serial0/1
 no ip address
 shutdown
!
router ospf 1
 log-adjacency-changes
 network 0.0.0.0 255.255.255.255 area 0
!
no ip http server
ip classless
!
ip pim bidir-enable
ip pim spt-threshold 1
!
!
ip access-list standard NoGroup
 deny   224.20.68.1
 permit any
ip access-list standard Prob6
 permit 224.20.73.1 15.128.20.0
ip access-list standard Prob7
 permit 239.0.0.0 0.255.255.255
!
ip access-list extended Prob12
 permit udp host 180.40.7.97 any eq tftp
!
!
!
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
line aux 0
line vty 0 4
 privilege level 15
 no login
!
!
end