It is a cisco proprietary protocol, so all routers in a. How to configure enhanced interior gateway routing. Eigrp sample ccna lab eigrp routing the purpose of this lab is to explore the functionality of the eigrp routing protocol. These limitations we used to measure the performance of routing the network.
All interfaces inside that classful network will participate in the eigrp process. Eigrp stands for enhanced gateway routing protocol. Eigrp is the enhanced interior gateway routing protocol. Please refer the beginning of this lesson to view the enhanced interior gateway routing protocol eigrp configuration ios command. Eigrp is a ciscoproprietary hybrid routing protocol, incorporating features of both. Our eigrp configuration network diagram shows complete approximation about enhanced interior gateway protocol eigrp. Prerequisite eigrp fundamentals enhanced interior gateway routing protocol eigrp is a dynamic routing network layer protocol which works on the protocol number 88. This lab will discuss and demonstrate the configuration and verification of the cisco eigrp dynamic routing protocol.
More detailed description of these three routing protocols will be included later. In this video you will see how to configure eigrp and explain the processes what are happening on the background. What is the enhanced interior gateway routing protocol. After static routing configuration, and dynamice routing configuration we are going to introduce hybrid routing configuration here now. Enhanced interior gateway routing protocol eigrp configuration in router01. Configure the network above with eigrp using autonomous system number 90. Dual also helps ensure a loopfree routing environment. Eigrp supports message digest algorithm 5 md5 authentication to prevent the introduction of unauthorized information from unapproved sources. Since ios 15, eigrp has a new method of configuration called named mode eigrp. The eigrp named configuration is a base configuration that is required to define address family configurations that are used for routing.
Eigrp and troubleshooting routing protocols objectives upon completion of this chapter, you should be able to answer the following questions. Although named eigrp unifies configuration for eigrp for ipv4 and ipv6, the neighbor tables, topology tables and eigrp routing processes are still separate. Configuring a dynamic routing protocol eigrp for connecting different networks. By default, the network command uses a classful network as the parameter. This command will enable eigrp routing protocol in router. 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 very popular routing protocol selection for those.
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. Download cisco ccnp routing pdf study guide snabay. Eigrp is a ciscoproprietary hybrid routing protocol, incorporating features of both distancevector and linkstate routing protocols. This article is all about how easily we can configure egrp on cisco router. 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. To enable eigrp only on specific interfaces, a wildcard mask can be used. The configuration of eigrp is similar to other routing protocols.
Cisco eigrp configuration commands, troubleshooting eigrp are also discussed. Enhanced interior gateway routing protocol is ciscos proprietary routing protocol based on diffusing update algorithm. 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. Lets take a look to figure below and configure this topology via eigrp step by step. 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.
After overview of eigrp, it is time to take a look at eigrp configuration. Routes with equal feasible distance are installed by default in the. Connect to router01 console and use the following ios commands to configure enhanced interior gateway routing protocol eigrp in router01. 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. Cisco router configuration commands cli cheat sheet. Ccna certification eigrp configuration lab simulation. Igrp routes have an administrative distance of 100. 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. Routing table is anaddress list of source and destination address where the packet. Eigrp support equal and unequal cost load balancing equal cost load balancing is enabled by default. The messages on r1 are displayed below as an example. As we know eigrp is a dynamic routing protocol and its work only for.
Eigrp uses diffusing update algorithm dual to determine the best path among all feasible paths. Because of this, routes are summarized to classful address at network boundaries in the routing updates. Eigrp configuration step by step guide computernetworkingnotes. The performance like load, delay, throughput for various. Eigrp is a distancevector protocol and is based on the dual algorithms. Cisco enhanced interior gateway routing protocol eigrp.
Introduction to eigrpenhanced interior gateway routing. By default, eigrp has the auto summary feature enabled. Enhanced interior gateway routing protocol eigrp authentication is configurable on a perinterface basis. It combines the features of both the distancevector and linkstate routing protocols and sometimes referred as hybridprotocol. 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. Cisco ios router configuration commands cheat sheet pdf. Enhanced interior gateway routing protocol eigrp border gateway protocol bgp intermediate systemtointermediate system isis lets discuss each of above protocols as below.
Pdf configuration and evaluation of interior gateway routing. Eigrp is a ciscoproprietary routing protocol that is based on igrp. 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. Igrp uses bandwidth and delay of the line, by default, to calculate its. 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. Contents chapter 1 readmefirst 1 chapter 2 eigrp 3 findingfeatureinformation 3 informationaboutconfiguringeigrp 3 eigrpfeatures 3 eigrpautonomoussystemconfiguration 4. To configure eigrp only on interface fa00, the network 10. To better understand the concept of autosummarization, consider the. 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. Router interoperation with a site of origin extended community 75. This article takes a look at the configuration of the enhanced interior gateway routing protocol eigrp.
Eigrp has the fastest router convergence among the three protocols we are testing. Both are owned by cisco and operate only on their devices. To perform this lab we have used cisco packet tracer software here. Eigrp route summarizationautonomous system configuration 45. Ccna v3 200125 certification eigrp configuration lab simulation manual, exam answers 2017. You also will see how to troubleshoot problems with eigrp. Use the show ip protocols and show ipv6 protocols command to verify both eigrp for ipv4 and ipv6 processes. Eigrp will form neighbor relationships with adjacent routers in the. Basic cisco router eigrp configuration pluralsight. In order to become eigrp neighbors this number must be same on all participates.
The eigrp hello timer can be adjusted on a per interface basis. Eigrp supports classless routing, vlsm, route summarization, load balacing and many other useful features. Ccnp route chapter 2 lab 24, named eigrp configuration. We can use any asn autonomous system number from 1 to 65,535. Ip routing eigrp configuration guide, cisco ios release 12. Comparison of rip, eigrp, ospf, igrp routing protocols in. In this example, we will configure eigrp on packet tracer. Eigrp configuration guide americas headquarters cisco systems, inc. Comparison of rip, eigrp, ospf, igrp routing protocols in wireless local area network wlan by using opnet simulator tool a practical approach. Configuring the eigrp route summarization named configuration 24. It uses three separate tables called routing table, topology table, and neighbor table. The ip enhanced igrp route authentication feature supports md5 or hmacsha256 authentication of routing updates from the eigrp routing protocol. Eigrp enhanced interior gateway routing protocol, is a cisco proprietary hybrid routing protocol. The big brother of the show ip eigrp neighbor command.
This value can be adjusted to a maximum of 255 hops. Eigrp configuration is really awesome and not so hard if you compare with ospf or etc. Routing information protocols rip rip routing information protocol is a forceful protocol type used in local area network and wide area network. Enhanced interior gateway routing protocol eigrp is a powerful distance vector routing protocol and is relatively easy to configure for basic networks. We will use rip and eigrp together and merge them to get the benefits of distance vector and link state. How to configure eigrp on your cisco router by david davis in cisco intermediate. Configuring basic eigrp eigrp is an extremely common routing protocol due to its simplicity and ease of configuration. Router can route packet because there is a routing table in router configuration. 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.
Eigrp adheres to the following hybrid characteristics. 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. 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. In this paper, eigrp and ospf protocols consume high bandwidth. However, authentication is a different entity and must be placed within a. To begin the eigrp for ipv6 routing configuration process, issue the ipv6 router eigrp 1 command, where 1 is the as number. The purpose of this lab is to explore the functionality of the eigrp routing protocol. This tutorial explains how to configure eigrp routing protocol in cisco routers step by step with practical example in packet tracer. Eigrp supports cidr and vlsm, allowing network designers to maximize address space. Step by step eigrp configuration example networkel. An eigrp named configuration does not create an eigrp routing instance by itself.
In order to become eigrp neighbors, routers must be configured with the same as number. Pdf configuration and evaluation of interior gateway. When compared to igrp, a classful routing protocol, eigrp boasts faster convergence times, improved scalability, and superior management of routing loops. Eigrp routing information protocol is widely deployed interior gateway routing protocol. Comparison of rip, ospf and eigrp routing protocols based. An autonomous system is simply a group of eigrpenabled routers that should become eigrp neighbors and exchange routes. It is the ciscoproprietary protocol hence can be used only on cisco routers. They are limited to routing eigrp and nothing else. Enhanced interior gateway routing protocol eigrp is an advanced dynamic routing protocol that is used for routing decisions and configuration on the routers.
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