R1#sh run | b Ser
interface Serial0/0
 no ip address
 encapsulation frame-relay
!
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-multipoint
 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 224.66.66.66 17.100.1.255 100
 ip ospf network point-to-multipoint
 frame-relay interface-dlci 102
!
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
!
access-list 1 deny   224.20.73.1 15.128.20.0
access-list 1 permit any
access-list 2 permit 239.0.0.0 0.255.255.255
access-list 100 permit udp host 180.40.7.97 host 224.66.66.66 eq tftp
!


R2#sh run | b dhcp
ip dhcp pool Prob13
   host 180.40.7.97 255.255.255.224
   client-identifier 0063.6973.636f.2d30.3031.332e.3830.6532.2e30.3238.302d.4661.302f.32
!
!
interface FastEthernet0/1
 ip address 180.40.7.98 255.255.255.224
 ip pim sparse-dense-mode
 ip multicast helper-map broadcast 224.66.66.66 100
 ip igmp join-group 224.2.2.2
 duplex auto
 speed auto
!

access-list 100 permit udp host 180.40.7.97 host 255.255.255.255 eq tftp
!