Shulou(Shulou.com)06/01 Report--

1. Experimental topology

After OSPF is configured as shown in the topology, at this time, because area1 is separated between area2 and area0, R5 in area2 does not have routes that can reach area3, area0 and area1. For this reason, we set up a Tunnel tunnel on R3 and R4, and then announce the Tunnel tunnel into area0.

2. Experimental configuration

R1 configurations

interface Loopback0

ip address 1.1.1.1 255.255.255.0

interface Serial0/0

ip address 12.1.1.1 255.255.255.0

router ospf 110

router-id 1.1.1.1

network 1.1.1.0 0.0.0.255 area 3

network 12.1.1.0 0.0.0.255 area 3

R2 configuration

interface Loopback0

ip address 2.2.2.2 255.255.255.0

interface Serial0/0

ip address 12.1.1.2 255.255.255.0

interface Serial0/1

ip address 23.1.1.2 255.255.255.0

router ospf 110

router-id 2.2.2.2

network 2.2.2.0 0.0.0.255 area 0

network 12.1.1.0 0.0.0.255 area 3

network 23.1.1.0 0.0.0.255 area 0

R3 configuration

interface Loopback0

ip address 3.3.3.3 255.255.255.0

interface Serial0/0

ip address 34.1.1.3 255.255.255.0

interface Serial0/1

ip address 23.1.1.3 255.255.255.0

router ospf 110

router-id 3.3.3.3

network 3.3.3.0 0.0.0.255 area 0

network 23.1.1.0 0.0.0.255 area 0

network 34.1.1.0 0.0.0.255 area 1

R4 configuration

interface Loopback0

ip address 4.4.4.4 255.255.255.0

interface Serial0/0

ip address 34.1.1.4 255.255.255.0

interface Serial0/1

ip address 45.1.1.4 255.255.255.0

router ospf 110

router-id 4.4.4.4

log-adjacency-changes

network 4.4.4.0 0.0.0.255 area 1

network 34.1.1.0 0.0.0.255 area 1

network 45.1.1.0 0.0.0.255 area 2

R5 configuration

interface Loopback0

ip address 5.5.5.5 255.255.255.0

interface Serial0/1

ip address 45.1.1.5 255.255.255.0

router ospf 110

router-id 5.5.5.5

log-adjacency-changes

network 5.5.5.0 0.0.0.255 area 2

network 45.1.1.0 0.0.0.255 area 2

3. Configure OSPF multi-process redistribution

R1 and R5 do not have a route to each other. We modify R3 and R4 as follows

R3 configuration

interface Tunnel3

ip address 10.1.1.3 255.255.255.0

tunnel source 34.1.1.3

tunnel destination 34.1.1.4

router ospf 110

network 10.1.1.0 0.0.0.255 area 0

R4 configuration

interface Tunnel4

ip address 10.1.1.4 255.255.255.0

tunnel source 34.1.1.4

tunnel destination 34.1.1.3

router ospf 110

network 10.1.1.0 0.0.0.255 area 0

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