R2#sh run | b interface Serial1/0
!
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
!
!
interface Serial1/2
 no ip address
 ipv6 address 2005:0:1203::/64 eui-64
 ipv6 ospf 1 area 20
 clock rate 64000

ipv6 router ospf 1
 router-id 2.2.2.2
 log-adjacency-changes
 area 20 virtual-link 3.3.3.3
!


R3#sh run | b interface Loo
interface Loopback0
 no ip address
 ipv6 address 2000:3:3::/64 eui-64
 ipv6 ospf 1 area 51
!
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::212:43FF:FEAC:6F60 307 broadcast
 frame-relay map ipv6 FE80::213:60FF:FEF0:FD40 302 broadcast
 frame-relay map ipv6 2005:0:237:0:212:43FF:FEAC:6F60 307 broadcast
 frame-relay map ipv6 2005:0:237:0:213:60FF:FEF0:FD40 302 broadcast
!
!
interface Serial1/2
 no ip address
 ipv6 address 2005:0:1203::/64 eui-64
 ipv6 ospf 1 area 20
!
ipv6 router ospf 1
 router-id 3.3.3.3
 log-adjacency-changes
 area 20 virtual-link 2.2.2.2
!

R7#sh run | b interface Serial1/0
!
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
!
ipv6 router ospf 1
 router-id 7.7.7.7
 log-adjacency-changes
!