In this article we will mention about the eigrp protocol. Multipoint gre mgre nexthop resolution protocol nhrp dynamic routing protocol eigrp, rip, ospf. Eigrp is an advanced distance vector routing protocol. Connect to router01 console and use the following ios commands to configure enhanced interior gateway routing protocol eigrp in router01. This means that we can protect out network against any attacks designed to be carried out by peering with a malicious neighbour. Dmvpn stands for dynamic multipoint vpn and it is an effective solution for dynamic secure overlay networks. Once you are in the router eigrp configuration submode, configure the classful network 172. This tutorial explains how to configure eigrp routing protocol in cisco routers step by step with practical example in packet tracer. Eigrp enhanced interior gateway routing protocol, is a cisco proprietary hybrid routing protocol. Eigrp exchange messages for communication between the routers operating eigrp. To begin the eigrp for ipv6 routing configuration process. Configure the network above with eigrp using autonomous system number 90.
Fast reroute means we switch to another next hop, loopfree alternate is an alternative path in the network that is loop free. Router mgt is also running static routing to the isp. First you have to create the keychain and then you need to activate it on the interface. Basic cisco router eigrp configuration pluralsight. Please refer the beginning of this lesson to view the enhanced interior gateway routing protocol eigrp configuration ios command.
After overview of eigrp, it is time to take a look at eigrp configuration. The no network command will disable eigrp for the specified network. The two ethernet interfaces have ip addresses coresponding to subnets of 10. Configure r1 s0, e0, r2 s1, s0, e0 in eigrp as 100 and r3 s02 in eigrp as 200. Configuring basic eigrp eigrp is an extremely common routing protocol due to its simplicity and ease of configuration. Eigrp uses composite metric calculation formula to calculate the best path. In this lab, you will configure eigrp for the topology and networks shown above. Eigrp adheres to the following hybrid characteristics. Ipv6 eigrp configuration example stepbystep icnd2 200105. Eigrp introduction to eigrp basic eigrp conguration eigrp packets eigrp neighbor adjacency eigrp neighbor and topology table eigrp unequal load balancing eigrp variance command example eigrp. The configuration of eigrp is similar to other routing protocols. Ip routing eigrp configuration guide, cisco ios release 15s.
Enter a process id of 1 for the autonomoussystem parameter. Hi all lets say i enable eigrp on my router with router eigrp 900 network 10. Use the router eigrp command in global configuration mode to enable eigrp on the r1 router. How to configure eigrp in cisco packet tracer youtube. 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. Contents chapter 1 read me first 1 chapter 2 eigrp 3 findingfeatureinformation 3 informationaboutconfiguringeigrp 3 eigrpfeatures 3 eigrpautonomoussystemconfiguration. Step by step eigrp configuration example networkel.
Eigrp loopfree alternate lfa fast reroute frr is a feature that allows eigrp to switch to a backup path in less than 50 ms. This article takes a look at the configuration of the enhanced interior gateway routing protocol eigrp. The eigrpv6 is enabled per interface level with this command. Jun, 2012 eigrp for ipv6 configuration example the basic configuration of eigrp for ipv6 is not overly complex, but it often helps to see a working configuration. Its time for the exciting part of our enhanced interior gateway routing protocol, or eigrp, discussion, configuration. 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. Enhanced interior gateway routing protocol eigrp is a powerful distance vector routing protocol and is relatively easy to configure for basic networks. This type of configurational method is used when we want to inject all routes in eigrp autonomous system to rip database and show up as a regular rip route, and not. Auto summarization in eigrp, benefits of route summarization, no auto summary rip, rip configuration example, rip configuration step by step, rip summarization. Sep 25, 20 eigrp configuration example this video will walk you through a basic eigrp configuration. The network command in eigrp uses a classful network as the parameter by default, which means that all interfaces inside the classful network will participate in the eigrp process. The vrf configuration on cea and pe1 is straightforward, and the same on both devices ip vrf voice rd 26. This command is executed in eigrp configuration mode to statically specify an eigrp neighbor. To enable eigrp only on specific interfaces, a wildcard mask can be used. One of the biggest advantages that eigrp has over other highly scalable routing protocols is that its configuration is rather simple.
Enhanced interior gateway routing protocol eigrp configuration in router01. Configuring mutual eigrp and rip redistribution free. Home downloads download cisco ccnp routing pdf study guide. Configure r3 to redistribute eigrp routes into rip using a hop count of 3 then redistribute rip routes into eigrp using a t1 bandwidth and 20,000 microsecond delay. This article is mainly concentrated on configuration of rip and eigrp together to get the above mentioned benefits. Ccna certification eigrp configuration lab simulation. Eigrp introduction to eigrp basic eigrp conguration eigrp packets eigrp neighbor adjacency eigrp neighbor and topology table eigrp unequal load balancing eigrp variance command example eigrp summarization eigrp. Where we really see the major difference is in regards to the configuration. Download what is auto summarization in eigrp in pdf click here. Gateway routing protocol eigrp is an example of a balanced hybrid routing protocol. When enabled, any eigrp packets received with a tag not matching the tag configured will be ignored and dropped.
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. Lets take a look to figure below and configure this topology via eigrp step by step. Learn configuration, management, and troubleshooting techniques for the popular intervlan, ospf, and eigrp protocols, as well as tips for more. Lets setup eigrp on our branch router and our hq router. Equal and unequal cost load balancingautonomous system.
And lets ensure that hq has the ability to route to the 10. By default, eigrp has the auto summary feature enabled. Eigrp enhanced interior gateway routing protocol eigrp is a ciscoproprietary hybrid routing protocol, incorporating features of both distancevector and linkstate routing protocols. This command is executed in eigrp router configuration mode to specify which interfaces participate in the eigrp routing process. Eigrp is a classless routing protocol, meaning that it. This part explains these values with neighborship building process in detail with example. With this eigrp config, we will see important eigrp commands on cisco packet tracer. To better understand the concept of autosummarization, consider the following example. Loopback addresses are assigned in both routers, and they are configured to be in eigrp1. The big brother of the show ip eigrp neighbor command. All routers should be running an eigrp as number of 12.
The change is to simplify the configuration into one spot, which is under the router eigrp process instead of having some eigrp configuration under each interface. Eigrp is a very popular routing protocol selection for those. Sep 04, 2016 eigrp is an advanced distance vector routing protocol. The configuration for r1 is displayed below as an example. Pdf distance vector routing protocols were popular choice among network engineers. All interfaces inside that classful network will participate in the eigrp process. To begin the eigrp for ipv6 routing configuration process, issue the ipv6 router eigrp 1 command, where 1 is the as number. Nov 30, 2017 when enabled, any eigrp packets received with a tag not matching the tag configured will be ignored and dropped. In this example, two routers r1 and r2 are configured with ipv6 address. The first step is to gain access to the cisco device and access global configuration mode. Eigrp configuration example this video will walk you through a basic eigrp configuration.
Because of this, routes are summarized to classful address at network boundaries in the routing updates. Eigrp and troubleshooting routing protocols objectives. Now see the benefits of using this type of routing configuration. Comparison of rip, ospf and eigrp routing protocols based. The reason being the administrativedistance of eigrp internal routes is 90, but the ad of eigrp external routes is 170.
Currently, the eng router does not have connectivity to the isp router. Comparison of rip, ospf and eigrp routing protocols based on. The book provides an overview of essential concepts, terminology, and eigrp mechanisms, in addition to a look at the most important configuration options. 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. Pdf on the convergence of the eigrp routing protocol. By default, the network command uses a classful network as the parameter. Eigrp configuration is really awesome and not so hard if you compare with ospf or etc.
How to configure enhanced interior gateway routing. Adjustingtheintervalbetweenhellopacketsandtheholdtimenamed configuration 49 example. Use the ip defaultnetwork command to accomplish this task. Using vrflite, eigrp, and static routes netcraftsmen. Also, the administrativedistance of ospf is made higher to 200 or above. Eigrp uses diffusing update algorithm dual to determine the best path among all feasible paths. Interface eth0 and interface which address match to 10. How to configure enhanced interior gateway routing protocol. Enhanced interior gateway routing protocol eigrp is a dynamic routing network layer protocol which works on the protocol number 88. If youve completed lab 102 configuring mutual ospf and rip redistribution and lab 103 configuring mutual ospf and eigrp redistribution then you should be no stranger to mutual route redistribution if you did not complete the previous labs then to summarize mutual route redistribution up in a pretty little nut shell. Router r1 is connected with the local subnet that is 10.
Jun 30, 2017 after overview of eigrp, it is time to take a look at eigrp configuration. Eigrp has several advantages over routing information protocol rip and interior gateway. What is auto summarization in eigrp step by step configuration. 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.
If this process is not familiar, then read more about rip configuration. Eigrp configuration with example stepbystep icnd2 200105. Eigrp supports classless routing, vlsm, route summarization, load balacing and many other useful features. However, we can break this up into a simpler example with just 3 devices to illustrate the vrflite redistribution behavior. You will see neighbor adjacency messages as interfaces are added to the eigrp routing process. In short, dmvpn is combination of the following technologies. This command uses the network id of the subnet and a wildcard mask to identify the network range.
Enhanced interior gateway routing protocol eigrp is an example of a balanced hybrid routing protocol. Eigrp 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. Eigrp was designed by cisco system as a proprietary protocol which is available only on cisco routers. This document gives information about dmvpn with a configuration example. Router configured with eigrp routing protocol, send and receive messages to and. Disablingthesplithorizonautonomoussystemconfiguration 50 example.
289 816 290 462 1252 1073 1296 269 648 1245 379 167 1444 981 113 1114 1222 1546 913 891 1007 1069 967 604 1197 1449 1067 277 421 149 472 1146 941 1347 329 768 626 1155 51 702 380 39