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Cisco OSPF Route Redistribution

Sample Chapter is provided courtesy of Cisco Press.
Date: Jul 5, 2002.

Chapter Information

Configuration Example 1: Redistributing Classful Routes into OSPF with the Default Type and Metric
Configuration Example 2: Redistributing Classful Routes into OSPF with the Default Type and Specific Metric
Configuration Example 3: Redistributing Classful Routes into OSPF as Type 1 Routes Using a Specific Metric
Configuration Example 4: Redistributing Subnet Routes into OSPF as Type 1 Routes Using a Specific Metric
Configuration Example 5: Redistributing Subnet Routes into OSPF as Type 1 Routes Using a Specific Metric and Route Tag
Configuration Example 6: Controlling the Routes to Be Redistributed Based on IP Address
Configuration Example 7: Modifying the Metric of Redistributed Routes Using a Route Map
Configuration Example 8: Modifying the Metric Type of Redistributed Routes Using a Route Map
Configuration Example 9: Modifying the Tag Value of Redistributed Routes Using a Route Map
Configuration Example 10: Controlling Route Redistribution Based on Tag Values
Troubleshooting

Chapter Description

Use this complete reference to Cisco OSPF commands next time your network needs route redistribution. Ten example scenarios clearly illustrate the purpose, syntax, and usage of each command.

From the Book

Cisco OSPF Command and Configuration Handbook

$65.00

Configuration Example 4: Redistributing Subnet Routes into OSPF as Type 1 Routes Using a Specific Metric

The previous configuration examples redistributed only the classful EIGRP routes into OSPF. Modify the configuration on Router B to redistribute all the EIGRP routes.

Router B
router ospf 1
 redistribute eigrp 1 metric 66 metric-type 1 subnets

Verification

Verify that the classless EIGRP routes have been redistributed into OSPF on Router B by inspecting the IP routing table on Router A.

rtrA#show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
    D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
    N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
    E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
    i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
    * - candidate default, U - per-user static route, o - ODR
    P - periodic downloaded static route
Gateway of last resort is not set
   1.0.0.0/32 is subnetted, 1 subnets
C    1.1.1.1 is directly connected, Loopback0
O E1 205.5.5.0/24 [110/1628] via 10.1.1.2, 00:22:36, Serial0/1
   206.6.6.0/28 is subnetted, 1 subnets
O E1  206.6.6.0 [110/1628] via 10.1.1.2, 00:02:37, Serial0/1
O E1 5.0.0.0/8 [110/1628] via 10.1.1.2, 00:22:36, Serial0/1
   6.0.0.0/12 is subnetted, 1 subnets
O E1  6.0.0.0 [110/1628] via 10.1.1.2, 00:02:37, Serial0/1
O E1 145.5.0.0/16 [110/1628] via 10.1.1.2, 00:22:37, Serial0/1
   10.0.0.0/30 is subnetted, 2 subnets
C    10.1.1.0 is directly connected, Serial0/1
O E1  10.1.1.4 [110/1628] via 10.1.1.2, 00:02:40, Serial0/1
   146.6.0.0/20 is subnetted, 1 subnets
O E1  146.6.0.0 [110/1628] via 10.1.1.2, 00:02:40, Serial0/1

5. Configuration Example 5: Redistributing Subnet Routes into OSPF as Type 1 Routes Using a Specific Metric and Route Tag | Next Section Previous Section

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