This portable command guide assists network administrators in the proper use of the cisco ios and of the commands needed to pass the latest individual ccnp certification exams, in a thin, easytocarry format. In eigrp autonomous system configurations, eigrp vpns can be configured only under ipv4 address family configuration mode. Hi all lets say i enable eigrp on my router with router eigrp 900 network 10. How to configure eigrp on cisco routers with example. How to configure eigrp in cisco packet tracer youtube. I wont tell you the answer completely, but lets use the eigrp network. Configuring basic eigrp eigrp is an extremely common routing protocol due to its simplicity and ease of configuration. Enhanced interior gateway routing protocol eigrp is an advanced dynamic routing protocol that is used for routing decisions and configuration on the routers. The eigrp hello timer can be adjusted on a per interface basis. Eigrp is a very popular routing protocol selection for those. By default, eigrp has the auto summary feature enabled. Eigrp configuration is really awesome and not so hard if you compare with ospf or etc.
Dynamic multipoint vpn dmvpn design guide version 1. Information about configuring eigrp eigrp features increasednetworkwidthwithiproutinginformationprotocolrip,thelargestpossiblewidthof yournetworkis15hops. Eigrp was developed by cisco systems as a proprietary protocol, which can be used only on cisco routers but in 20 partial functionality of eigrp was converted to an open standard. To include this configuration for a device, enter the requested variable values when you attach a device template to a device, or create a template variables spreadsheet to apply the variables. The two ethernet interfaces have ip addresses coresponding to subnets of 10. Eigrp is an advanced distance vector routing protocol. With this eigrp config, we will see important eigrp commands on cisco packet tracer. It is a cisco proprietary protocol, so all routers in a network that is running eigrp must be cisco routers but now eigrp is moving towards becoming an open standard protocol. Where we really see the major difference is in regards to the configuration. Ccna certification eigrp configuration lab simulation. Eigrp uses diffusing update algorithm dual to determine the best path among all feasible paths. Mar 26, 2017 enhanced interior gateway routing protocol eigrp is an advanced dynamic routing protocol that is used for routing decisions and configuration on the routers.
Eigrp only sends incremental updates, reducing the. It is the first step in configuring eigrp on a router as done here on r1. It focuses on eigrp in the context of ip, although the principles learned from this guide can be applied to the other major network protocols that eigrp supports, including ipx and appletalk. Eigrp enhanced interior gateway routing protocol is an advanced distance vector routing protocol. To better understand the concept of autosummarization, consider the. This tutorial explains how to configure eigrp routing protocol in cisco routers step by step with practical example in packet tracer. Configure the network above with eigrp using autonomous system number 90. All other interconnectivity and internet access for the existing.
Eigrp configuration guide americas headquarters cisco systems, inc. Currently we are running bgp loopbacks within our core and bgp on our mpls network. Ip routing eigrp configuration guide, cisco ios release 12. Basic cisco router eigrp configuration pluralsight. In this lesson ill walk you through the configuration. In the past year, henry has focused on architectural design and implementation in cisco internal networks across australia and the asiapaci. This article takes a look at the configuration of the enhanced interior gateway routing protocol eigrp. On the router thats running eigrp 200 and ospf 10, youll do dual redistribution. Each router has a directly connected subnet that needs to be advertised through eigrp. The book provides an overview of essential concepts, terminology, and eigrp mechanisms, in addition to a look at the most important configuration options. Eigrp is used to converge the loopbacks within the core. Eigrp enhanced interior gateway routing protocol, is a cisco proprietary hybrid routing protocol. Eigrp was designed by cisco system as a proprietary protocol which is available only on cisco routers.
This protocol is an evolution of an earlier cisco protocol called igrp, which is now considered obsolete. It is regarded as an interior gateway protocol igp but has also been used extensively as an exterior gateway protocol for. Here is how we can configure eigrp on both routers. Eigrp named mode configuration since ios 15, eigrp has a new method of configuration called named mode eigrp. Currently, the eng router does not have connectivity to the isp router. In this example, we will configure eigrp on packet tracer. Eigrp configuration guide, cisco ios xe release 3se catalyst 3850 switches 35 adjusting the interval between hello packets and the hold time in a named configuration. All routers should be running an eigrp as number of 12. In these lessons we start with the basics of eigrp and end with the most advanced topics. Whats new and exciting with eigrp enhanced interior gateway routing protocol. Eigrp adheres to the following hybrid characteristics.
Lets take a look to figure below and configure this topology via eigrp step by step. Eigrp is an advanced distance vector routing protocol used extensively by enterprise customers. Eigrp supports classless routing and vlsm, route summarization, incremental updates, load balacing and many other useful features. Eigrp is a cisco proprietary routing protocol based on their original interior gateway routing protocol. Figure 81 illustrates the network topology for the configuration that follows, which shows how to configure eigrp using the commands covered in this chapter. Eigrp enhanced interior gateway routing protocol eigrp is a ciscoproprietary hybrid routing protocol, incorporating features of both distancevector and linkstate routing protocols. Because of this, routes are summarized to classful address at network boundaries in the routing updates. 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. Table 1 lists, in alphabetical order, cisco ios software configuration guides and command references, including brief descriptions of the contents of the documents. The network depicted above consists of only two routers. Step by step eigrp configuration example networkel. Eigrpsupport 75 chapter 4 eigrp mib 79 findingfeatureinformation 79 prerequisitesforeigrpmib 79 restrictionsforeigrpmib 80. In addition to the hello timer, eigrp neighbors are stamped with a hold timer.
Eigrp can only be used on networks where all routers are cisco routers. After overview of eigrp, it is time to take a look at eigrp configuration. It is very popular because it is simple to deploy and support. Oct 22, 2014 i wont tell you the answer completely, but lets use the eigrp network. Configuring the router eigrp command with the autonomoussystemnumber argument creates an eigrp configuration referred to as an autonomous system configuration. Demonstrate your ability to plan, verify, and troubleshoot enterprise networks by earning the cisco ccnp routing and switching certification. Home downloads download cisco ccnp routing pdf study guide. Network prefix enter the network prefix you want eigrp to advertise in the format of prefixmask.
Enhanced interior gateway routing protocol eigrp is an enhanced version of igrp. Eigrp and troubleshooting routing protocols objectives. In this lab, you will configure eigrp for the topology and networks shown above. Ipv6 eigrp configuration example stepbystep icnd2 200105. If you have no idea what eigrp is or how it works you should read my introduction to eigrp first. And theres some little, little things that we really have to be aware of when it comes to eigrp for ip version 6 that, you know, if we dont do that one specific thing, its not going to work as we intend it to work. Eigrp enhanced interior gateway routing protocol is ciscos igp interior gateway protocol that was made an open standard in 20. I have been advised by a coworker that bgp should not be in the core and we should use eigrp in the core and redistribute eigrpcore into bgpmpls and visa v. The eigrp autonomous system configuration creates an eigrp routing instance that can be used for exchanging routing information.
The router will share the eigrp learned routes with the ospf routers in area 20. Jun 30, 2017 after overview of eigrp, it is time to take a look at eigrp configuration. The router eigrp command entered in global configuration mode with autonomoussystemnumber argument creates an eigrp routing instance. 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. You can verify that routers have become neighbors by using the show ip eigrp neighbors command on either router. He has more than 10 years of experience in cisco networks, including planning, designing, and implementing large ip networks running igrp, eigrp, and ospf. In eigrp autonomous system configuration, eigrp vpns can be configured only under ipv4 address family configuration mode.
And theres some little, little things that we really have to be aware of when it comes to eigrp for ip version 6 that, you know, if we dont do that one. Routing protocol configuration 217 eigrp configuration 217 ospf configuration 218 ripv2 configuration 220 high availability 221 common elements in all ha headend designs 221 dual dmvpn cloud topologyhubandspoke deployment model 221 hubandspoke deployment modelsingle tier headend architecture 221. Router mgt is also running static routing to the isp. Ipsec vpn concepts and basic configuration in cisco ios router duration. Enhanced interior gateway routing protocol eigrp is a powerful distance vector routing protocol and is relatively easy to configure for basic networks. Ccnp routing and switching portable command guide cisco. This lab will discuss and demonstrate the configuration and verification of the cisco eigrp dynamic routing protocol. It is regarded as an interior gateway protocol igp but has also been used extensively as an exterior gateway protocol for interdomain routing. This chapter discusses common eigrp configuration tasks. Eigrp supports cidr and vlsm, allowing network designers to maximize address space. Eigrp configuration guide, cisco ios xe release 3s americas headquarters cisco systems, inc. Eigrp supports classless routing, vlsm, route summarization, load balacing and many other useful features.
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