R2#sh run | b 1/0
interface Serial1/0
 no ip address
 encapsulation frame-relay
!
interface Serial1/0.1 point-to-point
 ipv6 address 2005:0:237::2/64
 ipv6 address FE80::2 link-local
 ipv6 ospf 1 area 0
 frame-relay interface-dlci 203
!
interface Serial1/0.2 point-to-point
 ipv6 address 2005:0:702::2/64
 ipv6 address FE80::2 link-local
 ipv6 ospf 1 area 0
 frame-relay interface-dlci 207
!



R3#sh run int s 1/0
Building configuration...

Current configuration : 409 bytes
!
interface Serial1/0
 no ip address
 encapsulation frame-relay
 ipv6 address 2005:0:237::3/64
 ipv6 address FE80::3 link-local
 ipv6 ospf network point-to-multipoint
 ipv6 ospf hello-interval 10
 ipv6 ospf 1 area 0
 frame-relay map ipv6 FE80::2 302 broadcast
 frame-relay map ipv6 FE80::7 307 broadcast
 frame-relay map ipv6 2005:0:237::2 302 broadcast
 frame-relay map ipv6 2005:0:237::7 307 broadcast


R7#sh run | b 1/0
interface Serial1/0
 no ip address
 encapsulation frame-relay
!
interface Serial1/0.1 point-to-point
 ipv6 address 2005:0:237::7/64
 ipv6 address FE80::7 link-local
 ipv6 ospf 1 area 0
 frame-relay interface-dlci 703
!
interface Serial1/0.2 point-to-point
 ipv6 address 2005:0:702::7/64
 ipv6 address FE80::7 link-local
 ipv6 ospf 1 area 0
 frame-relay interface-dlci 702
!