R2#sh run | b int

interface Serial1/0
 no ip address
 encapsulation frame-relay
!
interface Serial1/0.1 point-to-point
 ipv6 address 2005:0:237::/64 eui-64
 ipv6 ospf 1 area 0
 frame-relay interface-dlci 203
!
interface Serial1/0.2 point-to-point
 ipv6 address 2005:0:702::/64 eui-64
 ipv6 ospf 1 area 0
 frame-relay interface-dlci 207
!
R7#sh run | b interface Serial1/0
interface Serial1/0
 no ip address
 encapsulation frame-relay
!
interface Serial1/0.1 point-to-point
 ipv6 address 2005:0:237::/64 eui-64
 ipv6 ospf 1 area 0
 frame-relay interface-dlci 703
!
interface Serial1/0.2 point-to-point
 ipv6 address 2005:0:702::/64 eui-64
 ipv6 ospf 1 area 0
 frame-relay interface-dlci 702
!

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

Current configuration : 450 bytes
!
interface Serial1/0
 no ip address
 encapsulation frame-relay
 ipv6 address 2005:0:237::/64 eui-64
 ipv6 ospf network point-to-multipoint
 ipv6 ospf hello-interval 10
 ipv6 ospf 1 area 0
 frame-relay map ipv6 FE80::213:7FFF:FE12:A540 307 broadcast
 frame-relay map ipv6 FE80::213:7FFF:FE07:540 302 broadcast
 frame-relay map ipv6 2005:0:237:0:213:7FFF:FE12:A540 307 broadcast
 frame-relay map ipv6 2005:0:237:0:213:7FFF:FE07:540 302 broadcast
end

R3#