OSPF Multiarea con IPV4.

CÓDIGO:

R1
ena
conf t
hostname R1
int e0/0
ip add 200.10.10.253 255.255.255.252
no shut
ip ospf 10 area 0
exit
int e0/1
ip add 200.10.10.249 255.255.255.252
no shut
ip ospf 10 area 0
exit
int e0/2
ip add 10.10.10.1 255.255.255.0
no shut
ip ospf 10 area 0
exit

router ospf 10
router-id 1.1.1.1
exit
==========================================
R2
ena
conf t
hostname R2
int e0/0
ip add 200.10.10.254 255.255.255.252
no shut
ip ospf 10 area 0
exit
int e0/1
ip add 172.16.20.1 255.255.255.0
no shut
ip ospf 10 area 15
exit
int e0/2
ip add 172.16.22.1 255.255.255.0
no shut
ip ospf 10 area 15
exit

router ospf 10
router-id 2.2.2.2
exit
==========================================
R3
ena
conf t
hostname R3
int e0/0
ip add 200.10.10.250 255.255.255.252
no shut
ip ospf 10 area 0
exit
int e0/1
ip add 192.168.10.1 255.255.255.0
no shut
ip ospf 10 area 20
exit
int e0/2
ip add 192.168.20.1 255.255.255.0
no shut
ip ospf 10 area 20
exit
router ospf 10
router-id 3.3.3.3
exit
==========================================