R2#sh config 

frame-relay de-list 1 protocol ip list 100
!
interface Serial1/0
 no ip address
 encapsulation frame-relay
 no fair-queue
 frame-relay traffic-shaping
!
interface Serial1/0.2 point-to-point
 ip address 180.40.7.162 255.255.255.224
 ip ospf network point-to-multipoint
 frame-relay class Prob18
 frame-relay de-group 1 201
 frame-relay interface-dlci 201
!
map-class frame-relay Prob18
 frame-relay cir 64000
 frame-relay bc 640
access-list 100 deny   ospf any any
access-list 100 permit ip any any