R1#sh run | b 0/0.1
interface Serial0/0.1 point-to-point
 ip address 208.28.1.1 255.255.255.248
 frame-relay interface-dlci 103
!
router eigrp 100
 network 17.57.100.1 0.0.0.0
 network 208.28.1.1 0.0.0.0
 distribute-list prefix Prob2 in Serial0/0.1
 no auto-summary
!
ip prefix-list Prob2 seq 5 deny 17.57.100.0/22 le 32
ip prefix-list Prob2 seq 10 permit 0.0.0.0/0 le 32
!


R2#sh run | b 1/0.1
interface Serial1/0.1 multipoint
 ip address 208.28.1.3 255.255.255.248
 frame-relay map ip 208.28.1.1 203
 frame-relay interface-dlci 203
!
router eigrp 100
 network 2.2.2.2 0.0.0.0
 network 208.28.1.3 0.0.0.0
 distribute-list 1 in Serial1/0.1
 distance 255 208.28.1.2 0.0.0.0 2
 no auto-summary
!
!  To filter the loopback from coming back
access-list 1 deny   2.2.2.0 0.0.0.255
access-list 1 permit any
!  Another option to not accept the loopback route 
access-list 2 permit 2.2.2.0 0.0.0.255
!   Another way of doing the filter (that didn't work in this version of code)
access-list 100 deny   ip host 2.2.2.0 host 255.255.255.0
access-list 100 permit ip any any
!

R3#sh run | b 1/0
interface Serial1/0
 ip address 208.28.1.2 255.255.255.248
 encapsulation frame-relay
 no ip split-horizon eigrp 100
 no fair-queue
 frame-relay map ip 208.28.1.1 301 broadcast
 frame-relay map ip 208.28.1.3 302 broadcast
 no frame-relay inverse-arp
!
router eigrp 100
 network 208.28.1.2 0.0.0.0
 no auto-summary
!