To configure eigrp in the cisco ios, just follow these steps. For each memory device available on the device, a file system called ios file system ifs is created. Ios devices store configuration commands in a configuration file. You might as well start getting used to them now, if youre running a version that supports the new format. The configuration of eigrp is similar to other routing protocols. Eigrp is an advanced distance vector routing protocol. Next, we have defined the domain name by using the ip domainname cisco command. To display the startup configuration of your device. Information about configuring eigrp eigrp features increasednetworkwidthwithiproutinginformationprotocolrip,thelargestpossiblewidthof yournetworkis15hops. Learn eigrp configuration commands, eigrp show commands, eigrp. In this example, we will configure eigrp on packet tracer. Of course, i wouldnt migrate a network from eigrp to ospf, unless i had a very specific reason to do so, and clearly defined goals for doing it.
Eigrp uses diffusing update algorithm dual to determine the best path among all feasible paths. The startup configuration file is stored nvram nonvolatile ram, so it is retained even after the device loses power. In this demonstration, i will share with us on how to implement eigrp with manual route summarization on a cisco router. Use the ip defaultnetwork command to accomplish this task. Figure 81 illustrates the network topology for the configuration that follows, which shows how to configure eigrp using the commands covered in this chapter.
Create a vpn feature template to configure vpn parameters for serviceside routing any vpn other than vpn 0 or vpn 512. Lets setup eigrp on our branch router and our hq router. For these steps following commands are used respectively. To list file systems available on your device, the show file. If i generically redistribute the routes all routes have. Eigrp was designed by cisco system as a proprietary.
Router mgt is also running static routing to the isp. The metric is calculated using the metric reported by the neighbor the advertised distance plus the metric to the neighbor reporting the route. Dynamic multipoint vpn dmvpn design guide version 1. Eigrp calculates a route of minimum cost to the destination by using information obtained from a neighbor table and a topology table by a computational algorithm called dual diffusing update algorithm. Eigrp configuration guide, cisco ios xe gibraltar 16. The below section will describe you how to configure and verify the eigrp for ipv6. On the router thats running eigrp 200 and ospf 10, youll do dual redistribution. Eigrp administrative distance 5 summary 90 internal 170 exernal eigrp multicast address 224. All routers should be running an eigrp as number of 12.
The following example shows the configuration of the first three steps. With this eigrp config, we will see important eigrp commands on cisco packet tracer. The optimum route is selected as a successor, and the second optimum route is selected as a feasible successor. Redistribution between cisco eigrp into ospf and vice. Ccna certification eigrp configuration lab simulation. Eigrp tables neighbor table topology table routing table eigrp routing table terms active state router is trying to find a route. Cisco dmvpn configuration example dynamic multipoint vpn dmvpn is a cisco vpn solution used when high scalability and minimal configuration complexity is required in connecting branch offices to a central hq hub site. With the classic version of eigrp that we used before ios 15 we configured eigrp globally and some other things like authentication on the interfaces. I wont tell you the answer completely, but lets use the eigrp network. Cisco dmvpn configuration example networks training. Feasible distance fd the local routers metric of the best route to reach a specific network.
Lets take a look to figure below and configure this topology via eigrp step by step. Yasser auda cciev5 mpls guide ldp, vrf lite, mpls vpn. How to migrate from eigrp to ospf for this small of a network, i would make the entire network area 0. Appendix a scalability test bed configuration files a1 cisco 7200vxrnpeg1savam2 headend configuration a1.
Contents chapter 1 readmefirst1 chapter 2 eigrp3 findingfeatureinformation 3 informationaboutconfiguringeigrp 4 eigrpfeatures 4 eigrpautonomoussystemconfiguration 4. Eigrp configuration with example stepbystep icnd2 200105. Basic cisco router eigrp configuration select the contributor at the end of the page this article is the third in a series of articles covering the basics of cisco networking. Its time for the exciting part of our enhanced interior gateway routing protocol, or eigrp, discussion, configuration. Redistribute eigrp into ospf with different ad based on originating router i am trying to redistribute routes from one eigrp domain with 5 routers to an ospf domain but keep optimal routing paths. This tutorial explains how to configure eigrp routing protocol in cisco routers step by. Configure r1 s0, e0, r2 s1, s0, e0 in eigrp as 100 and r3 s02 in eigrp as 200. To configure eigrp only on interface fa00, the network 10. In this tutorial well learn and configure about the eigrp in cisco packet tracer. Step by step eigrp configuration example networkel.
Use of enhanced interior gateway routing protocol eigrp as a routing protocol across the vpn. This article takes a look at the configuration of the enhanced interior gateway routing protocol eigrp. It is the enhanced distance vector protocol, which relies on a diffused update algorithm to determine the shortest path to the destination within the network. Displays contents of the current running configuration file.
Here is how we can configure eigrp on both routers. Currently, the eng router does not have connectivity to the isp router. Eigrp is a very popular routing protocol selection for those. This article describes the process of eigrp configuration on a cisco router. The eigrp route tag enhancements feature enables you to specify and display route tags in dotteddecimal format, filter routes using the route tag value with wildcard mask, and set a default route tag for all internal enhanced interior gateway routing protocol eigrp routes.
And lets ensure that hq has the ability to route to the 10. How to configure eigrp in cisco packet tracer youtube. To configure eigrp routing protocol using vmanage templates. When problems arise on cisco devices, there are a number of show commands you can use to help identify what the problem is. This tutorial explains how to configure eigrp routing protocol in cisco routers step by step with practical example in packet tracer. Configuring eigrp with manual route summarization on a. Enhanced interior gateway routing protocol is ciscos proprietary routing protocol based on. It is a cisco proprietary protocol, so all routers in a. Next, we need to enable eigrp authentication on an interface. View the fundamental configuration and verification of. Easy eigrp is an implementation of the enhanced interior gateway routing protocol developed in java. Comparison of rip, ospf and eigrp routing protocols based on. Before we go into configuring enhanced interior gateway routing protocol eigrp for the network topology displayed below, here are a few things about eigrp you need to commit to memory.
Additionally eigrp shouldnt work as a classful routing protocol. We require the no autosummary command because by default eigrp behave classful and we. From the interface mode, the following commands are used. Create an eigrp feature template to configure eigrp parameters, as described in this article. Eigrp configuration guide, cisco ios xe release 3s americas headquarters cisco systems, inc. Contents chapter 1 readmefirst 1 chapter 2 eigrp 3 findingfeatureinformation 3 informationaboutconfiguringeigrp 3 eigrpfeatures 3 eigrpautonomoussystemconfiguration 4. The eigrp autonomous system configuration creates an eigrp routing instance that can be used for exchanging routing information. Eigrp adheres to the following hybrid characteristics. Eigrp enhanced interior gateway routing protocol eigrp is a cisco proprietary hybrid routing protocol, incorporating features of both distancevector and linkstate routing protocols. Eigrp named mode configuration since ios 15, eigrp has a new method of configuration called named mode eigrp. This is a simple configuration in which user has to write the network id of the network to be advertised with network command. Managing configuration files configuration guide, cisco ios xe gibraltar 16.
Eigrp configuration is really awesome and not so hard if you compare with ospf or etc. Eigrp supports classless routing, vlsm, route summarization, load balacing and many other useful features. Managing configuration files configuration guide, cisco. Redistribution between cisco eigrp into ospf and vice versa example the most common scenario for big enterprise networks with multiple routers is to have a single igp routing protocol igp interior gateway protocol running between the routers in order to distribute all. First, we have defined the device hostname by using the hostname r1 command. The route with the lowest fd will be placed in the routing table. All other interconnectivity and internet access for the existing. Eigrp enhanced interior gateway routing protocol, is a cisco proprietary hybrid routing protocol. Ip routing eigrp configuration guide, cisco ios release 15s. Basic cisco router eigrp configuration pluralsight. After overview of eigrp, it is time to take a look at eigrp configuration. Configure the network above with eigrp using autonomous system number 90. It has a userfriendly and flexible graphical user interface that allows users to configure all relevant aspects of the network and the protocol. In eigrp autonomous system configurations, eigrp vpns can be configured only under ipv4 address family configuration mode.
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