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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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Configuration du routage ospf – routeur Cisco

First, we need to enable OSPF on both routers. Area IDs are unique numeric identifiers, in dotted decimal notation.

Next, you need to define on which interfaces OSPF will run and what networks will be advertised. 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 CLI at the [edit] hierarchy level, and then enter commit from configuration mode.

Configure the router identifiers for the devices in your OSPF network. To confirm your OSPFv3 configuration, enter the show protocols ospf3 command.

We can do that using the following sequence of commands:.

Configure the device interfaces. As you can see from the network topology depicted above, routers R1 and R3 are in the area 0 and area 1, respectively. Confirm your configuration by entering the show protocols ospf command. Home About Contact Support our work. If the output does not display the intended configuration, repeat the instructions in this example to correct the configuration.

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Example: Configuring a Single-Area OSPF Network – TechLibrary – Juniper Networks

For a single-area OSPFv3 network, include the ospf3 statement at the [edit protocols] hierarchy level. NOTE We have used the router-id 1.

For example, here is the output of the command on R 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.

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 Area IDs need only be unique within an AS. We will use the following network topology:.

OSPF configuration

Configuration of R3 looks similar, but with cinfiguration difference, namely area number. Characters IA in front of the routes indicate that these routes reside in different areas.

In an autonomous system ASthe backbone area is always assigned area ID 0. Jan 26, upravnik. Confirm that the Area field displays the value that you configured. This can be done by using the following sequence of commands on both routers:.

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OSPF configuration

Our goal is to advertise the subnets directly connected to R1 and R3. The network commands entered on both routers include subnets directly connected to both routers.

R3 is in the area 1. OSPF basic configuration is very simple. In this example we have two OSPF areas — area 0 and area 1. We can verify that by using the show ip ospf neighbor command:. We can verify that the routers have become neighbors by typing the show ip ospf neighbors rohtage on either router:. 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, we need to specify different configuuration ID for each neighbor relationship, 0 for R1 and 1 for R2. You must also create a backbone area if your network consists of multiple areas.

To do that, the following configuration on R1 will be configyration.

Now R2 should have neighbor relationship with both R1 and R3. To verify if the routing updated were exchanged, we can use the show ip route command.