In this lab we will learn to configure multi area ospf using cisco packet tracer. This is a basic labs regarding ospf single area configure related to ccna or icnd12 exam. In the first line, bgp configuration begins with a familiar type of command. Ospf open shortest path first protocol is a wellknow routing protocol that is widely used today. The format of common ospf header is type it specifies the type of ospf packet. Bgp border gateway protocol is the core routing protocol of the internet. Configure and create the above lab in packet tracer and complete the ip configuration with following configurations.
Jan 08, 2010 computer networking professionals getting started with packet tracer may find the interface to be flustered. Apr 11, 2015 how to configure ospf routing in cisco packet tracer. Router 1 and router 2 belong to area 1 and router 3 and router 4 belong to area 2. Once you are in the router ospf configuration submode, configure the lan network 172. For this, we will demonstrate ospf configuration using cisco packet tracer. To configure a netowork for ospf properly there are some steps. Now you have to configure ospf such that devices in area 0 can easily communicate with devices in area 1 step 1. Eigrp enhanced interior gateway routing protocol, is a cisco proprietary hybrid routing protocol. Open shortest path first configuration in cisco packet tracer. Ospf open shortest path first ospf is a standardized linkstate routing protocol, designed to scale efficiently to support larger networks. To learn faster, use the link below to download the lab for free. Routing ospf, packet loss, cisco packet tracer, wan. Jan 02, 2019 cisco packet tracer tutorial step by step pdf. This time, well take a look how you can configure multi area ospf.
When a link state router begins operating on a network link, information associated with that logical network is added to its local link state database lsdb. This lab was something i worked on last week and for some reason it stuck in my head very well. Jun 28, 2017 it is time to take a look to configuring ospf open shortest path first with an ospf configuration example. This packet is sent by the omprouted server to discover ospf neighbor routers and to establish bidirectional communications with them. In this example, we will configure eigrp on packet tracer. In this lab we will configure multiarea os pf using cisco packet tracer. Ospf also allows packet authentication and uses ip multicast when sending and receiving packets. The format of common ospf header is version 2 1byte type it specifies the type of ospf packet. Define area 9 as a totally stubby area area 9 stub nosummary. The router interface commands used to set these timers are. Give c second priority bdr in election ip ospf priority 50 interface loopback0 ip address 10. Only two ospf speakers use the interface between which ospf multiarea functionality works. Below output shows the adjacency states and the elected drbdr for.
This ospf lab is created in packet tracer and you will learn the ospf single area configuration from this lab. Ospf can scale to the largest lans but can also start out small. The next command defines the ip address of the neighbor. Ospf p art 1 protocol header type attributes algorithm metric linkstate dijkstra cost bandwidth ad. Mar 31, 20 we are going to apply ospf open shortest path first protocol on packet tracer. It is described as a path vector protocol as bgp does not use traditional igp ospf, eigrp, rip metrics, but makes routing decisions based on path, network policies andor rulesets. Aug 21, 2017 packet tracer configure cisco routers for syslog, ntp, and ssh operations topology. How to configure ospf routing in cisco packet tracer. The following is the ip address configuration for each router on multiuser1. Before you attempt to configure ospf, i would advise you to go through these two articles regarding ospf from the intense school website. Practicing ospf virtual links at the moment and things arent quite working out. This header allows the receiving router to validate and process the packets. How to configure ospf routing protocol using packet tracer.
Cisco ospf configuration commands for checking adjacency, dr bdr election and stub area. About ospf open shortest path first ospf is one of the dynamic routing protocols amongst others. Ospf is a classless routing protocol that supports vlsm and cidr, and uses the shortest path first spf algorithm to calculate the best path to a network. Above we have r1 and r2 in area 0, the backbone area. Ospf is perhaps the most widely used interior gateway protocol igp in large enterprise networks. This tutorial will give you an easy guide of configuring basic ospf on a cisco router. This article is the fourth in a series of articles covering the basics of cisco networking. Optional md5 authentication configured ip ospf authentication messagedigest ip ospf messagedigestkey 1 md5 foobar.
Ospf is a standard internal gateway protocol igp that is used by many different types and sizes of companies. Packet tracer configure cisco routers for syslog, ntp, and ssh operations topology. It is an open standard, so it can be run on routers from different vendors. All routes marked with the character o are ospf routes. The configuration of eigrp is similar to other routing protocols.
Learn ospf configuration commands, ospf show commands, ospf network configuration process id, network id, wild card mask and area number and ospf routing in detail. However, learning how to configure a router with packet tracer will put professionals on the right track to mastering the program in about half an hour. You can see that r1 has learned about the network 192. This article will tell you how to configure and experiment with ospf using cisco packet tracer. How to configure ospf routing protocol using cisco packet tracer.
Ospf with multiarea adjacency configuration example. Topology addressing table device interface ip address subnet mask ospfv2 area r1 g00 10. For basic ospf configuration, the followin scenario will be a good example. It is perhaps one of the most popular link state routing protocols. Packet tracer ospf delete area andor set a new area even using clear ip ospf process so im not sure if this involves a nuance in packet tracer or if theres something im doing wrong one thing is for certain, though i dont yet totally understand the network command although i will have a question on that later. Ospfopen short path first,it is a open standard routing protocol,link state routing protocol algorithm dijkistra,to find shortest path administrativ distance110. Ip routingconfiguring rip, ospf, bgp, and pbr ftp directory. I can put together a basic mpls configuration now from memory which is definitely a step up from where i was. Computer networking professionals getting started with packet tracer may find the interface to be flustered. After that we will configure ospf as our routing protocol.
Once you get the lab, open it with your cisco packet tracer. To make sure you can get 100%, please check your topology clearly and find one of our lab below by tab. So, in this example, we are going to take four routers where one pc is connected to each. Configure and verify open shortest path first ospf routing. In below network topology diagram you can see there are two area area 0 and area 1. The configuration is pretty simple and requires only two major steps. For example, here is the output of the command on r1. Although basic ospf configuration can be very simple, ospf provides many extra features that can get really complex. Here we assume that all the interfaces including loopback interfaces, their speed, duplex and descriptions have been configured. The router id can be used to break a tie in the election process. Nov 18, 20 this article will tell you how to configure and experiment with ospf using cisco packet tracer. The configuration of ospf routing protocol is easy as rip routing. We are going to apply ospf open shortest path first protocol on packet tracer. In our example, we will examine the figure below deeply.
How to configure multi area ospf lab in cisco packet tracer. All ospf packets share a common ospf header of 24bytes. Ospf configuration step by step guide this tutorial explains how to configure ospf routing protocol step by step with practical example in packet tracer. Video tutorial on how to configure ospf in packet tracer. Link state routing protocols advertise the state of their links. Because of that, we created a specific cisco packet tracer lab. The open shortest path first ospf protocol, defined in rfc 2328, is an. Ospf configuration step by step guide protechgurus.
Cisco also recommends that these requirements be met before you attempt the configuration that is described in this document. The paper also explains about the assigning of ip address and configuring them router as well as in pcs. With this eigrp config, we will see important eigrp commands on cisco packet tracer. I have used cisco packet tracer software to demonstrate the ospf configuration. Ospf not working in cisco packet tracer cisco community. It is time to take a look to configuring ospf open shortest path first with an ospf configuration example. Ospf configuration step by step guide computer networking notes. First of all, we will configure the routers interfaces. On the router, enter the global configuration mode and configure the hostname as shown in the chart. Learn how to implement and troubleshoot routing with ipv6 commands, using this packet tracer lab to.
The open shortest path first ospf is a routing protocol for wide area networks and enterprise network. The ospf mib defines an ip routing protocol that provides management information related to ospf and is supported by. Ospf employs a hierarchical network design using areas. The ospf link state routing protocol must be preconfigured in the network. I have several routers in area 0 and the link between routers 4 and 5 in area 45. This tutorial explains how to configure ospf routing protocol step by step with practical example in packet tracer. How to configure ospf in packet tracer ospf configuration.
Packet tracer configuring basic ospfv3 in a single area answer version answer note. Open shortest path first ospf is a linkstate routing protocol that is designed to work with large, more complex networks. Open shortest path first open shortest path first ospf is an openstandard link state routing protocol. Open shortest path first, an interior gateway routing protocol developed for ip networks. Jun 11, 2019 this ospf lab is created in packet tracer and you will learn the ospf single area configuration from this lab. Ospf configuration, the router sends a notification message to the console stating that a neighbor relationship with another ospf router has been established. Configure a router with packet tracer learn networking. Ospf open short path first,it is a open standard routing protocol,link state routing protocol algorithm dijkistra,to find shortest path administrativ distance110. Ospf will form neighbor relationships with adjacent routers in the same area. How to configure basic ospf by brandon carroll in networking on july 26, 2017, 12. How to configure multiarea ospf lab in cisco packet tracer. Configure routers to log messages to the syslog server. Device 3 is configured as the nssa autonomous system border router asbr.
Ospf configuration in packet tracer lab with pdf networking. In the following example, an open shortest path first ospf stub network is configured to include ospf area 0 and ospf area 1, using five devices. Red font color or gray highlights indicate text that appears in the answer copy only. Configure rip ver 2 protocol on all routers and disable auto summarisation. There are 3 types type a, type b, type c of topology for scan practice skills exam ospf pt. Ospf p art 2 configuration example interface serial00 description wan link. The configuration is very simple with only two lines on r1.
In following figure there are the three routers with. May 24, 2018 open shortest path first ospf is one of the dynamic routing protocols amongst others such as eigrp, bgp and and rip. This article takes a look at the configuration of open shortest path first ospf. In my introduction on ospf i explained why we sometimes use multiple areas for ospf and in our configuration example, i showed you how to configure ospf for a single area. Cisco routers derive the router id in one of three ways and with the following precedence. How to configure ospf routing protocol and connect areas. But just before we get to configure, lets have an overview of ospf. We have network topology diagram in which we can see there are three router with two area area 0 and area 1. This tutorial explains how to configure eigrp routing protocol in cisco routers step by step with practical example in packet tracer. Ospf configuration in packet tracer computer networking. Ospf is an open standard protocol, you learn more why we use ospf and ospf quiz from here.
Ospf configuration and troubleshooting at ccna level. The following packet types are supported for i5os in an ospf environment. Ip address configured with the ospf routerid command. As you get exam online lab with cisco netacd, you will random to get one of three type. In this article we will see how to configure ospf step by step.