OBJETIVO: SUMARIZAR TODA EL AREA 20
Así se ven la rutas inicialmente desde R1
R1#sh ip route
Gateway of last resort is not set
172.16.0.0/16 is variably subnetted, 8 subnets, 2 masks
C 172.16.12.0/24 is directly connected, Serial0/0
C 172.16.1.0/24 is directly connected, Loopback0
O IA 172.16.2.1/32 [110/1563] via 172.16.12.2, 00:00:03, Serial0/0
O IA 172.16.2.33/32 [110/1563] via 172.16.12.2, 00:00:03, Serial0/0
O IA 172.16.2.65/32 [110/1563] via 172.16.12.2, 00:00:04, Serial0/0
O IA 172.16.2.97/32 [110/1563] via 172.16.12.2, 00:00:03, Serial0/0
Así sse sumarizan las redes del area 20
R2(config-router)#do sh run | s ospf
ip ospf network point-to-point
ip ospf network point-to-point
ip ospf network point-to-point
ip ospf network point-to-point
router ospf 1
router-id 172.16.2.1
area 20 range 172.16.2.0 255.255.255.128
network 172.16.2.0 0.0.0.127 area 20
network 172.16.12.0 0.0.0.255 area 0
Así se ven la rutas del area 20 sumarizadas, desde R1
R1#sh ip route
172.16.0.0/16 is variably subnetted, 5 subnets, 2 masks
C 172.16.12.0/24 is directly connected, Serial0/0
C 172.16.1.0/24 is directly connected, Loopback0
O IA 172.16.2.0/25 [110/1563] via 172.16.12.2, 00:01:22, Serial0/0
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