Eigrp is an advanced distance vector routing protocol used extensively by enterprise customers. Basic cisco router eigrp configuration pluralsight. This chapter discusses common eigrp configuration tasks. It is regarded as an interior gateway protocol igp but has also been used extensively as an exterior gateway protocol for. Eigrpsupport 75 chapter 4 eigrp mib 79 findingfeatureinformation 79 prerequisitesforeigrpmib 79 restrictionsforeigrpmib 80. Eigrp enhanced interior gateway routing protocol is an advanced distance vector routing protocol. In the past year, henry has focused on architectural design and implementation in cisco internal networks across australia and the asiapaci. Ipsec vpn concepts and basic configuration in cisco ios router duration. 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. Eigrp uses diffusing update algorithm dual to determine the best path among all feasible paths. Router mgt is also running static routing to the isp. Enhanced interior gateway routing protocol eigrp is an enhanced version of igrp.
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. In this example, we will configure eigrp on packet tracer. After overview of eigrp, it is time to take a look at eigrp configuration. 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. Currently we are running bgp loopbacks within our core and bgp on our mpls network. The ccnp certification is the second most common cisco certification covering mastery of more advanced routing and switching topics, now including security and wireless. This tutorial explains how to configure eigrp routing protocol in cisco routers step by step with practical example in packet tracer. Igrp is ciscos interior gateway routing protocol used in tcpip and osi internets. 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. By default, eigrp has the auto summary feature enabled. 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 is used to converge the loopbacks within the core. Eigrp only sends incremental updates, reducing the.
Ip routing eigrp configuration guide, cisco ios release 12. Eigrp named mode configuration since ios 15, eigrp has a new method of configuration called named mode eigrp. Configuring basic eigrp eigrp is an extremely common routing protocol due to its simplicity and ease of configuration. Hi all lets say i enable eigrp on my router with router eigrp 900 network 10. In these lessons we start with the basics of eigrp and end with the most advanced topics. Ccnp routing and switching portable command guide cisco. Enhanced interior gateway routing protocol eigrp is an advanced dynamic routing protocol that is used for routing decisions and configuration on the routers. If you have no idea what eigrp is or how it works you should read my introduction to eigrp first. On the router thats running eigrp 200 and ospf 10, youll do dual redistribution. Eigrp is a very popular routing protocol selection for those. The router eigrp command entered in global configuration mode with autonomoussystemnumber argument creates an eigrp routing instance. Eigrp adheres to the following hybrid characteristics. Dynamic multipoint vpn dmvpn design guide version 1. This lab will discuss and demonstrate the configuration and verification of the cisco eigrp dynamic routing protocol.
Here is how we can configure eigrp on both routers. He has more than 10 years of experience in cisco networks, including planning, designing, and implementing large ip networks running igrp, eigrp, and ospf. Therefore, to connect disparate eigrp sites, you must configure the neighbor command with lisp encapsulation on every ce in the network. In addition to the hello timer, eigrp neighbors are stamped with a hold timer. Network prefix enter the network prefix you want eigrp to advertise in the format of prefixmask. Eigrp enhanced interior gateway routing protocol eigrp is a ciscoproprietary hybrid routing protocol, incorporating features of both distancevector and linkstate routing protocols.
With this eigrp config, we will see important eigrp commands on cisco packet tracer. All other interconnectivity and internet access for the existing. In eigrp autonomous system configuration, eigrp vpns can be configured only under ipv4 address family configuration mode. The eigrp autonomous system configuration creates an eigrp routing instance that can be used for exchanging routing information. It is the first step in configuring eigrp on a router as done here on r1.
Configure the network above with eigrp using autonomous system number 90. Eigrp configuration is really awesome and not so hard if you compare with ospf or etc. Enhanced interior gateway routing protocol eigrp is a powerful distance vector routing protocol and is relatively easy to configure for basic networks. Eigrp configuration guide, cisco ios xe release 3s americas headquarters cisco systems, inc. Eigrp was designed by cisco system as a proprietary protocol which is available only on cisco routers. The network depicted above consists of only two routers.
This article takes a look at the configuration of the enhanced interior gateway routing protocol eigrp. 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. In this lab, you will configure eigrp for the topology and networks shown above. Eigrp and troubleshooting routing protocols objectives. It is regarded as an interior gateway protocol igp but has also been used extensively as an exterior gateway protocol for interdomain routing. Eigrp is an advanced distance vector routing protocol. How to configure eigrp on cisco routers with example. Eigrp supports classless routing, vlsm, route summarization, load balacing and many other useful features. Demonstrate your ability to plan, verify, and troubleshoot enterprise networks by earning the cisco ccnp routing and switching certification. This protocol is an evolution of an earlier cisco protocol called igrp, which is now considered obsolete. 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. Eigrp can only be used on networks where all routers are cisco routers. 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. Because of this, routes are summarized to classful address at network boundaries in the routing updates.
You can verify that routers have become neighbors by using the show ip eigrp neighbors command on either router. Eigrp enhanced interior gateway routing protocol, is a cisco proprietary hybrid routing protocol. 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. Eigrp supports classless routing and vlsm, route summarization, incremental updates, load balacing and many other useful features. Eigrp supports cidr and vlsm, allowing network designers to maximize address space.
Cisco ios router configuration commands cheat sheet pdf. Eigrp is a cisco proprietary routing protocol based on their original interior gateway routing protocol. How to configure eigrp in cisco packet tracer youtube. Table 1 lists, in alphabetical order, cisco ios software configuration guides and command references, including brief descriptions of the contents of the documents. Information about configuring eigrp eigrp features increasednetworkwidthwithiproutinginformationprotocolrip,thelargestpossiblewidthof yournetworkis15hops. Whats new and exciting with eigrp enhanced interior gateway routing protocol. The eigrp hello timer can be adjusted on a per interface basis.
Eigrp enhanced interior gateway routing protocol is ciscos igp interior gateway protocol that was made an open standard in 20. Where we really see the major difference is in regards to the configuration. The router will share the eigrp learned routes with the ospf routers in area 20. It is very popular because it is simple to deploy and support. Ipv6 eigrp configuration example stepbystep icnd2 200105. I wont tell you the answer completely, but lets use the eigrp network. Eigrp is a ciscoproprietary routing protocol that is based on igrp. The configuration of eigrp is similar to other routing protocols. Oct 22, 2014 i wont tell you the answer completely, but lets use the eigrp network. Eigrp configuration guide americas headquarters cisco systems, inc. To better understand the concept of autosummarization, consider the. Ccna certification eigrp configuration lab simulation. Lets take a look to figure below and configure this topology via eigrp step by step.
In eigrp autonomous system configurations, eigrp vpns can be configured only under ipv4 address family configuration mode. In this lesson ill walk you through the configuration. Home downloads download cisco ccnp routing pdf study guide. The book provides an overview of essential concepts, terminology, and eigrp mechanisms, in addition to a look at the most important configuration options. 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. Each router has a directly connected subnet that needs to be advertised through eigrp. Step by step eigrp configuration example networkel. Eigrp is one of the routing protocols you need to master if you want to pass the cisco ccna exam. The two ethernet interfaces have ip addresses coresponding to subnets of 10. 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. 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. 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. All routers should be running an eigrp as number of 12. Currently, the eng router does not have connectivity to the isp router.
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