Eigrp is a ciscoproprietary routing protocol that is based on igrp. All interfaces inside that classful network will participate in the eigrp process. Eigrp configuration guide americas headquarters cisco systems, inc. We can use any asn autonomous system number from 1 to 65,535. Pdf configuration and evaluation of interior gateway routing. In order to become eigrp neighbors, routers must be configured with the same as number. Eigrp supports cidr and vlsm, allowing network designers to maximize address space. To begin the eigrp for ipv6 routing configuration process, issue the ipv6 router eigrp 1 command, where 1 is the as number.
Both are owned by cisco and operate only on their devices. Step by step eigrp configuration example networkel. Ccna certification eigrp configuration lab simulation. Igrp uses bandwidth and delay of the line, by default, to calculate its. Introduction to eigrpenhanced interior gateway routing. Ip routing eigrp configuration guide, cisco ios release 12. Routing table is anaddress list of source and destination address where the packet. Enhanced interior gateway routing protocol eigrp enhanced interior gateway routing protocol eigrp is a ciscoproprietary hybrid routing protocol, incorporating features of both distancevector and linkstate routing protocols. Lets take a look to figure below and configure this topology via eigrp step by step. This tutorial explains how to configure eigrp routing protocol in cisco routers step by step with practical example in packet tracer. Configuring the eigrp route summarization named configuration 24.
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. To better understand the concept of autosummarization, consider the. The performance like load, delay, throughput for various. Eigrp uses diffusing update algorithm dual to determine the best path among all feasible paths. Ccna v3 200125 certification eigrp configuration lab simulation manual, exam answers 2017. When compared to igrp, a classful routing protocol, eigrp boasts faster convergence times, improved scalability, and superior management of routing loops. Router can route packet because there is a routing table in router configuration. This article is all about how easily we can configure egrp on cisco router.
Router interoperation with a site of origin extended community 75. 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. The configuration of eigrp is similar to other routing protocols. Eigrp route summarizationautonomous system configuration 45. Dual also helps ensure a loopfree routing environment. Eigrp and bgp routing help your problem is that the cost of the routes received by the 2600 is higher then the routes redistributed from bgp. They are limited to routing eigrp and nothing else. Eigrp general hybrid rputing protocol uses dual algorithm protocol independant classless routing protocol support equal unequal path load balancing eigrp tables neighbor table topology table routing table eigrp routing table terms active state router is trying to find a route. Contents chapter 1 readmefirst 1 chapter 2 eigrp 3 findingfeatureinformation 3 informationaboutconfiguringeigrp 3 eigrpfeatures 3 eigrpautonomoussystemconfiguration 4. Eigrp is a distancevector protocol and is based on the dual algorithms. Chapter description the excerpt from the ccna routing and switching portable command guide summarizes all ccna certificationlevel cisco ios software commands, keywords, command arguments, and associated prompts for topics related to the enhanced interior gateway routing protocol eigrp.
Because of this, routes are summarized to classful address at network boundaries in the routing updates. Pdf configuration and evaluation of interior gateway. Comparison of rip, eigrp, ospf, igrp routing protocols in wireless local area network wlan by using opnet simulator tool a practical approach. Eigrp routing information protocol is widely deployed interior gateway routing protocol. Prerequisite eigrp fundamentals enhanced interior gateway routing protocol eigrp is a dynamic routing network layer protocol which works on the protocol number 88. Eigrp adheres to the following hybrid characteristics. Connect to router01 console and use the following ios commands to configure enhanced interior gateway routing protocol eigrp in router01.
Eigrp supports classless routing, vlsm, route summarization, load balacing and many other useful features. Comparison of rip, ospf and eigrp routing protocols based on. Routes with equal feasible distance are installed by default in the. The purpose of this lab is to explore the functionality of the eigrp routing protocol. Igrp routes have an administrative distance of 100. The big brother of the show ip eigrp neighbor command. This command is executed in router configuration mode of rip, eigrp or ospf to configure the routing process to redistribute routes from a different source into the configured routing process such as static into rip or rip into ospf. Basic cisco router eigrp configuration pluralsight. After static routing configuration, and dynamice routing configuration we are going to introduce hybrid routing configuration here now.
Eigrp enhanced interior gateway routing protocol, is a cisco proprietary hybrid routing protocol. As a distancevector protocol, the eigrp router send updates to its neighbors as networks change, thus allowing the convergence to a known. Enhanced interior gateway routing protocol is ciscos proprietary routing protocol based on diffusing update algorithm. The messages on r1 are displayed below as an example. Please refer the beginning of this lesson to view the enhanced interior gateway routing protocol eigrp configuration ios command. The eigrp hello timer can be adjusted on a per interface basis. So check the metric of the routes received in normal times by the 2600, and use a number higher then this metric when you redistribute from bgp. Eigrp has the fastest router convergence among the three protocols we are testing. Although named eigrp unifies configuration for eigrp for ipv4 and ipv6, the neighbor tables, topology tables and eigrp routing processes are still separate. This value can be adjusted to a maximum of 255 hops.
In order to become eigrp neighbors this number must be same on all participates. An eigrp named configuration does not create an eigrp routing instance by itself. Download cisco ccnp routing pdf study guide snabay. Enhanced interior gateway routing protocol eigrp is an advanced dynamic routing protocol that is used for routing decisions and configuration on the routers. To enable eigrp only on specific interfaces, a wildcard mask can be used. Eigrp will form neighbor relationships with adjacent routers in the. The eigrp named configuration is a base configuration that is required to define address family configurations that are used for routing. Enhanced interior gateway routing protocol eigrp is an advanced distance vector routing protocol based on the principles of the interior gateway routing protocol igrp. Eigrp is a successor to the interior gateway routing protocol igrp. Greg explores the fundamentals and prerequisites required for redistribution between interior gateway routing protocols igp in cisco networks, and discusses how routemaps are configured inside of the enhanced interior gateway routing protocol eigrp and. After overview of eigrp, it is time to take a look at eigrp configuration. Eigrp supports message digest algorithm 5 md5 authentication to prevent the introduction of unauthorized information from unapproved sources.
As we know eigrp is a dynamic routing protocol and its work only for. It combines the features of both the distancevector and linkstate routing protocols and sometimes referred as hybridprotocol. These limitations we used to measure the performance of routing the network. Configuring basic eigrp eigrp is an extremely common routing protocol due to its simplicity and ease of configuration. Spt provides cisco enhanced interior gateway routing protocol eigrp setup tutorial and eigrp configuration in packet tracer. Copy the running configuration to the startup configuration. Eigrp is a ciscoproprietary hybrid routing protocol, incorporating features of both distancevector and linkstate routing protocols. By default, the network command uses a classful network as the parameter. Eigrp stands for enhanced gateway routing protocol. We will use rip and eigrp together and merge them to get the benefits of distance vector and link state. Eigrp and troubleshooting routing protocols objectives upon completion of this chapter, you should be able to answer the following questions.
Cisco eigrp configuration commands, troubleshooting eigrp are also discussed. Enhanced interior gateway routing protocol eigrp is a powerful distance vector routing protocol and is relatively easy to configure for basic networks. Eigrp is a very popular routing protocol selection for those. In this example, we will configure eigrp on packet tracer.
More detailed description of these three routing protocols will be included later. Comparison of rip, ospf and eigrp routing protocols based. Download this cisco router configuration commands cheat sheet in pdf format at the end of this post herethe most important cli commands are included that will help you in the field. An autonomous system is simply a group of eigrpenabled routers that should become eigrp neighbors and exchange routes. This command will enable eigrp routing protocol in router. Enhanced interior gateway routing protocol eigrp authentication is configurable on a perinterface basis. Configuring a dynamic routing protocol eigrp for connecting different networks. Since ios 15, eigrp has a new method of configuration called named mode eigrp. Our eigrp configuration network diagram shows complete approximation about enhanced interior gateway protocol eigrp. Cisco router configuration commands cli cheat sheet. It is a cisco proprietary protocol, so all routers in a. Eigrp configuration step by step guide computernetworkingnotes. 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. Enhanced interior gateway routing protocol eigrp border gateway protocol bgp intermediate systemtointermediate system isis lets discuss each of above protocols as below.
It uses three separate tables called routing table, topology table, and neighbor table. However, authentication is a different entity and must be placed within a. Eigrp is a ciscoproprietary hybrid routing protocol, incorporating features of both. To configure eigrp only on interface fa00, the network 10. Cisco enhanced interior gateway routing protocol eigrp. How to configure enhanced interior gateway routing. Eigrp is the enhanced interior gateway routing protocol. Configure the network above with eigrp using autonomous system number 90.
This article takes a look at the configuration of the enhanced interior gateway routing protocol eigrp. Use the show ip protocols and show ipv6 protocols command to verify both eigrp for ipv4 and ipv6 processes. Cisco ios router configuration commands cheat sheet pdf. Eigrp support equal and unequal cost load balancing equal cost load balancing is enabled by default. You also will see how to troubleshoot problems with eigrp. Enhanced interior gateway routing protocol eigrp configuration in router01. What is the enhanced interior gateway routing protocol. This lab will discuss and demonstrate the configuration and verification of the cisco eigrp dynamic routing protocol.
In this paper, eigrp and ospf protocols consume high bandwidth. 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. Comparison of rip, eigrp, ospf, igrp routing protocols in. In this video you will see how to configure eigrp and explain the processes what are happening on the background. Ccnp route chapter 2 lab 24, named eigrp configuration. To perform this lab we have used cisco packet tracer software here. Eigrp sample ccna lab eigrp routing the purpose of this lab is to explore the functionality of the eigrp routing protocol. Hi, i have provided the download link of the cisco ccnp routing pdf study guide in the below section please go there and click on the download link to download cisco. Routing information protocols rip rip routing information protocol is a forceful protocol type used in local area network and wide area network. How to configure eigrp on your cisco router by david davis in cisco intermediate. It is the ciscoproprietary protocol hence can be used only on cisco routers.
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