---

enable
configure terminal
hostname R1

interface Serial0/0/0
 no ip address
 encapsulation frame-relay
 no shutdown
exit

interface Serial0/0/0.10 point-to-point
 ip address 10.5.1.1 255.255.255.0
 frame-relay interface-dlci 512
exit

interface Serial0/0/0.20 multipoint
 ip address 10.5.2.1 255.255.255.0
 frame-relay map ip 10.5.2.3 513 broadcast
 frame-relay map ip 10.5.2.4 514 broadcast
exit

exit
write



enable
configure terminal
hostname R2

interface Serial0/0/0
 no ip address
 encapsulation frame-relay
 no shutdown
exit

interface Serial0/0/0.10 point-to-point
 ip address 10.5.1.2 255.255.255.0
 frame-relay interface-dlci 521
exit

exit
write




enable
configure terminal
hostname R3

interface Serial0/0/0
 no ip address
 encapsulation frame-relay
 no shutdown
exit

interface Serial0/0/0.20 multipoint
 ip address 10.5.2.3 255.255.255.0
 frame-relay map ip 10.5.2.1 531 broadcast
 frame-relay map ip 10.5.2.4 531 broadcast
exit

exit
write





enable
configure terminal
hostname R4

interface Serial0/0/0
 no ip address
 encapsulation frame-relay
 no shutdown
exit

interface Serial0/0/0.20 multipoint
 ip address 10.5.2.4 255.255.255.0
 frame-relay map ip 10.5.2.1 541 broadcast
 frame-relay map ip 10.5.2.3 541 broadcast
exit

exit
write