CONFIGURATION ROUTAGE OSPF PDF

This document uses these configurations. ip unnumbered Ethernet2/0/0 router ospf 1 network area 0. Redistribution Configuration Syntax and Examples. IGRP and EIGRP. OSPF. RIP. Redistributing Static Routes Except Gateway of Last resort in. This article describes some basic OSPF configuration.

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NOTE We have used the router-id 1. Area IDs need only be unique within osfp AS. Configure the router identifiers for the devices in your OSPF network. Area IDs are unique numeric identifiers, in dotted decimal notation. We can do that using the following sequence of commands:.

In this example we have two OSPF areas — area 0 and area 1.

You must also create a backbone area if your network consists of multiple areas. This can be done by using the following sequence of commands on both routers:. Configuration of R3 looks similar, but with one difference, ospc area number.

Next, you need to define on which interfaces OSPF will run and what networks will be advertised. As you can see from the network topology depicted above, routers R1 and R3 are in the area 0 and area 1, respectively.

Because R1 connects only to R2, we only need to establish a neighbor relationship with R2 and advertise directly connected subnet into OSPF. To do that, the following configuration on R1 will be used:. To quickly configure a single-area OSPF network, copy the following commands, paste them into a text file, remove any line breaks, change any details necessary to match your network configuration, copy and paste the commands into the Routave at the [edit] hierarchy level, and then enter commit from configuration mode.

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Jan 26, upravnik. Confirm that the Area field displays the value that you configured.

Configuration du routage ospf – routeur Cisco

We will use the following network topology:. Configure the device interfaces. In an autonomous system ASthe backbone area is always assigned area ID 0. We can verify that the routers have become neighbors by typing the show ip ospf neighbors command on either router:. R3 is in the area 1. To confirm your OSPFv3 configuration, enter the show protocols confituration command. Our goal is to advertise the subnets directly connected to R1 and R3.

To do that, we need to specify different area ID for each neighbor relationship, 0 for R1 and 1 for R2. Characters IA in front of the routes indicate that these routes reside in different areas.

To verify if directly connected subnets are really advertised into the different area, we can use the show ip route ospf command on both R1 and R The network commands entered on both routers include subnets directly connected to both routers.

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All other networks or areas in the AS must be directly connected to the backbone area by area border routers that have interfaces in more than one area. Now R2 should have neighbor relationship with both R1 and R3. OSPF basic configuration is very osf.

Then we need to define what network will be advertised into OSPF. To verify if the routing updated were exchanged, we can use the show ip route command. Confirm your configuration by entering the show protocols ospf command.

OSPF configuration

If the output does not display the intended configuration, repeat the instructions in this example to correct the configuration. For example, conviguration is the output of the command on R We can verify that by using the show ip ospf neighbor command:.

First, we need to enable OSPF on both routers. For a single-area OSPFv3 network, include the ospf3 statement at the [edit protocols] hierarchy level.