Ccnp Experiment 6: Modify the route management distance of OSPF neighbor sources

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I. basic configuration

R1 (config) # router OSPF 1

R1 (config-router) # net 1.1.0.0 0.0.255.255 area 1

R1 (config-router) # net 12.1.1.1 0.0.0.0 area 0

R1 (config-router) # redistribute connected subnets

 

R2 (config) # router OSPF 1

R2 (config-router) # net 12.1.1.2 0.0.0.0 area 0

R2 (config-router) # net 2.2.2.2 0.0.0.0 area 0

R2 (config-router) # net 23.1.1.1 0.0.0.0 area 2

 

R3 (config) # router OSPF 1

R3 (config-router) # net 0.0.0.0 255.255.255.255 area 2

 

R2 # Show IP Ro OS

1.0.0.0/32 is subnetted, 2 subnets

O Ia 1.1.1.1 [110/65] via 12.1.1.1, 00:00:32, serial1/0

O Ia 1.1.2.1 [110/65] via 12.1.1.1, 00:00:32, serial1/0

3.0.0.0/32 is subnetted, 2 subnets

O 3.1.2.1 [110/65] via 23.1.1.2, 00:00:32, serial1/1

O 3.1.1.1 [110/65] via 23.1.1.2, 00:00:32, serial1/1

10.0.0.0/24 is subnetted, 1 subnets

O E2 10.1.1.0 [110/20] via 12.1.1.1, 00:00:32, serial1/0

30.0.0.0/32 is subnetted, 1 subnets

O 30.1.1.1 [110/65] via 23.1.1.2, 00:00:32, serial1/1

 

2. Modify the route management distance of a specific neighbor Source

 

R2 (config) # router OSPF 1

R2 (config-router) # distance 122 1.1.2.1 0.0.0.0Be sure to writeRIDAnd anti-Mask

 

R2 # Show IP Ro OS

1.0.0.0/32 is subnetted, 2 subnets

O Ia 1.1.1.1 [122/65] via 12.1.1.1, 00:00:04, serial1/0

O Ia 1.1.2.1 [122/65] via 12.1.1.1, 00:00:04, serial1/0

3.0.0.0/32 is subnetted, 2 subnets

O 3.1.2.1 [110/65] via 23.1.1.2, 00:00:04, serial1/1

O 3.1.1.1 [110/65] via 23.1.1.2, 00:00:04, serial1/1

10.0.0.0/24 is subnetted, 1 subnets

O E2 10.1.1.0 [122/20] via 12.1.1.1, 00:00:04, serial1/0

30.0.0.0/32 is subnetted, 1 subnets

O 30.1.1.1 [110/65] via 23.1.1.2, 00:00:04, serial1/1

 

Thoughts:

R2 (config) # router OSPF 1

R2 (config-router) # distance 122 12.1.1.1 0.0.0.0Use the neighbor interface addressYes?

 

 

R2 (config) # router OSPF 1

R2 (config-router) # distance 122 12.1.1.1 255.255.255.255Can I use the RID and mask?

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