Router on a stick is a network configuration used to allow the routing of traffic between different vlans almost all enterprise networks use vlans which stands for virtual local area network. Jun 30, 2017 after overview of eigrp, it is time to take a look at eigrp configuration. It is a cisco proprietary protocol, so all routers in a. Study plan cisco ccnp routingswitching 300101 route. Eigrp configuration is really awesome and not so hard if you compare with ospf or etc. In 2008 free ccna workbook originally started as a sharable pdf but quickly evolved into the largest ccna training lab website on the net. Cisco ios router configuration commands cheat sheet pdf.
Project scenario of communication network using cisco packet tracer article pdf available in international journal of computer applications 18129. Enhanced interior gateway routing protocol eigrp is one of the most used routing protocols in enterprise networks. Hi all lets say i enable eigrp on my router with router eigrp 900 network 10. Houston config router eigrp logneighborchanges changes with neighbors will be displayed. Configure the network above with eigrp using autonomous system number 90. Learn eigrp configuration commands, eigrp show commands, eigrp. We can verify that by typing the show vlan command from the ios enable mode of a switch. Eigrp is a ciscoproprietary routing protocol that is based on igrp. Use the router eigrp command in global configuration mode to enable eigrp on the r1 router. You can verify that routers have become neighbors by using the show ip eigrp neighbors command on either router. These ports need to be configured as access ports and assigned to their respective vlans by. In this lab, you will configure eigrp for the topology and networks shown above.
Enables the display of route tag values in dotteddecimal format. This time well take a look at redistribution between eigrp and rip. Ip routing eigrp configuration guide, cisco ios release 15s. Basic cisco router eigrp configuration pluralsight.
To better understand the concept of autosummarization, consider the following example. Eigrp uses ciscos reliable transport protocol rtp to send messages and uses the multicast address of 224. Eigrp and troubleshooting routing protocols objectives. This lab will discuss and demonstrate the configuration and verification of static eigrp neighbors. You cannot run eigrp on juniper or adtran or any other router for that matter since eigrp is special only to cisco. Alright lets take a look first at what that one is. It has a userfriendly and flexible graphical user interface that allows users to configure all relevant aspects of the network and the protocol. Configuring eigrp static neighbors free ccna workbook. This lab uses cisco 1841routers with cisco ios release 12. Gns3 labs for ccna eigrp configuration and verification. For these steps following commands are used respectively.
It is the first step in configuring eigrp on a router as done here on r1. Eigrp adheres to the following hybrid characteristics. He has more than 10 years of experience in cisco networks, including planning, designing, and implementing large ip networks running igrp, eigrp, and ospf. Eigrp can easily support large networks thanks to its large 32 bit metric. Basic cisco commands by marcus nielson 2014 configuring basic switch settings switch examples enter enable if the prompt has changed back to switch. Eigrp configuration is pretty straightforward itself as we are going to see first hand in the next couple of pages. Since these kinds of posts are useful as a reference for many people, i have decided to create also a cisco router commands cheat sheet with the most useful and the most frequently used command line interface cli configuration commands for cisco routers cisco ios routers are probably the most complete. For ipv6, this number must be configured under address family. How to configure eigrp on cisco routers with example. Houston config if ip authentication mode eigrp md5. Now, youve seen it done already,but were gonna get into more of the options,and the the different ways you can configure eigrp. It is a cisco proprietary protocol, with the good and the bad that comes with it. One of the biggest advantages that eigrp has over other highly scalable routing protocols is that its configuration is rather simple. By default, all ports on a switch are in the vlan 1.
Eigrp is an enhanced version of the igrp developed by cisco. It is an enhanced distance vector protocol that relies on the diffused update algorithm dual to calculate the shortest path to a destination within a network. Because of this, routes are summarized to classful address at network boundaries in the routing updates. Contents chapter 1 readmefirst1 chapter 2 eigrp3 findingfeatureinformation 3 informationaboutconfiguringeigrp 4 eigrpfeatures 4 eigrpautonomoussystemconfiguration 4. Configure r1 s0, e0, r2 s1, s0, e0 in eigrp as 100 and r3 s02 in eigrp as 200. One of the advantages of eigrp is that, unlike ospf and many other routing protocols, eigrp also supports unequalcost load balancing. Eigrp has been discussed through various articles on the intense school website. Enhanced interior gateway routing protocol eigrp is a powerful distance vector routing protocol and is relatively easy to configure for basic networks. Eigrp supports classless routing and vlsm, route summarization, incremental updates, load balacing and many other useful features. How to configure cisco switches a step by step guide. By default, eigrp has the auto summary feature enabled. Easyeigrp is an implementation of the enhanced interior gateway routing protocol developed in java. Lets take a look to figure below and configure this topology via eigrp step by step.
Eigrp named mode configuration since ios 15, eigrp has a new method of configuration called named mode eigrp. Go to the saved session field and enter a name for your settings e. Eigrp supports cidr and vlsm, allowing network designers to maximize address space. Host a and host b are in different vlans, vlan 1 and vlan 2. Configuring the eigrp route summarization autonomous system. Step by step eigrp configuration example networkel. Each vlan is a separate subnet and in order to route ip packets in and out of those vlans or more accurately, the subnets that sit on each of those vlans some router needs to have an ip address. Cisco supports this position and feels it would provide customers with the flexibility to deploy eigrp where it will best suit their needs.
Eigrp configuration guide, cisco ios xe release 3s. Eigrp is an enhanced distance vector protocol, relying on the diffused update algorithm dual to calculate the shortest path to a destination within a network. The following table lists the differences between ospf and eigrp. If this process is not familiar, then read more about rip configuration. Ip routing eigrp configuration guide, cisco ios release 15sy americas headquarters cisco systems, inc. Press the open button at the bottom of the page to launch the cli. The following message will display in the command prompt. The book provides an overview of essential concepts, terminology, and eigrp mechanisms, in addition to a look at the most important configuration options. This tutorial explains how to configure eigrp routing protocol in cisco routers step by. Configuring bgp neighbors on cisco routers flackbox. Enter a process id of 1 for the autonomoussystem parameter. For our eigrp config example, we will use the below topology on packet tracer. Chapter 2 lab 21, eigrp configuration, bandwidth, and. Configuration guides, command references, and supplementary resources table 1 lists, in alphabetical order, cisco ios software configuration guides and command references, including brief descriptions of the contents of the documents.
The cisco ios command references contain commands for cisco ios software for all releases. In order to become neighbors, all routers must be configured with the same as number. These configurations are also used on cisco packet tracer ccna labs adventure courses cisco packet tracer labs. Eigrp enhanced interior gateway routing protocol eigrp is a cisco proprietary hybrid routing protocol, incorporating features of both distancevector and linkstate routing protocols. The switch is a cisco wsc296024ttl with the cisco ios. Enter privileged exec mode and set a hostname for the switch. Two steps are required to create a vlan and assign a switch port to the vlan.
And, lets go ahead and take out,already, the eigrp we have in here. Houston config if ip address enable confjguration routing using ipv6 unicastrouting command. Eigrp can only be used on networks where all routers are cisco routers. Eigrp for ipv6 works in the same way as eigrp ipv4 where they can be configured and managed separately. Comparison of rip, ospf and eigrp routing protocols based on. Use the ip defaultnetwork command to accomplish this task. Eigrp uses diffusing update algorithm dual to determine the best path among all feasible paths. Hi everybody, im confused about ip summaryaddress eigrp command when it use on specific interface, when we need to use it and what is the difference between it and between manual summerization for network ex. As eigrp is not supported in the digi transport, this example will use ospf on the transport router. To configure a trunk interface, the switchport mode trunk interface command is used. Eigrp configuration, bandwidth and adjacencies chapter 2. For eigrp configuration information and examples, refer to the cisco ios ip routing. Eigrp is commonly the routing protocol of choice when using an all cisco network with no requirement for crossvendor operation.
Eigrp is a cisco proprietary routing protocol which means its only found on cisco equipment. You can download the cisco packet tracer example with. Without it, an administrative distance of 5 is automatically applied to the summary route. Appendix a scalability test bed configuration files a1 cisco 7200vxrnpeg1savam2 headend configuration a1. So lets go ahead and open the first router,which is labeled router 0. Dynamic multipoint vpn dmvpn design guide version 1. Ip routing eigrp configuration guide, cisco ios release 15sy. Eigrp configuration guide, cisco ios xe release 3s americas headquarters cisco systems, inc.
The router eigrp command entered in global configuration mode with autonomoussystemnumber argument creates an eigrp routing instance. The engineer asks you to show proofofconcept in the lab first, so you copy the configuration files to paste into your lab routers. Cisco ios software versions if they have comparable capabilities and features. In the past year, henry has focused on architectural design and implementation in cisco internal networks across australia and the asiapaci.
Displays contents of the current running configuration file. This chapter discusses common eigrp configuration tasks. Tunnel0 will use the ipsec profile cisco eigrp protocol will be used between ciscos for automatic route discovery. Eigrp configuration guide, cisco ios xe release 3e.
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. The first step is to gain access to the cisco device and access global configuration mode. Pdf project scenario of communication network using. This protocol is an evolution of an earlier cisco protocol called igrp, which is now considered obsolete. Eigrp supports classless routing, vlsm, route summarization, load balacing and many other useful features. The below section will describe you how to configure and verify the eigrp for ipv6. Use of enhanced interior gateway routing protocol eigrp as a routing protocol across the vpn.
To accomplish unequalcost load balancing, the variance command is used. An autonomous system is simply a group of eigrp enabled routers that should become eigrp neighbors and exchange routes. The website was founded in late 2009 with the goal of providing free cisco ccna labs that can be completed using the gns3 platform. This type of interface can carry traffic of multiple vlans.
Eigrp has the fastest router convergence among the three protocols we are testing. 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. R1 show ip protocols shows the entire routing table. Here is how we can configure eigrp on both routers. Eigrp is a very popular routing protocol selection for those. Since these kinds of posts are useful as a reference for many people, i have decided to create also a cisco router commands cheat sheet with the most useful and the most frequently used command line.
The cisco hub router will be configured to redistribute dynamic routes from eigrp into ospf also from ospf into eigrp. Bgp routing and path selection for service providers part 4. R1 config if ip hellointerval eigrp 3 r1 config if ip holdtime eigrp 10 impacting metric calculations by tuning bw and delay of the interface optional. Ip routing eigrp configuration guide, cisco ios release 12. You can set up your router to load balance over links with different metric to reach a destination. Eigrp is a cisco proprietary routing protocol based on their original interior gateway routing protocol. After overview of eigrp, it is time to take a look at eigrp configuration. To remove the match extcommunitycommand from the configuration file and remove the bgp or. This article takes a look at the configuration of the enhanced interior gateway routing protocol eigrp. 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. Path first spf algorithm which is used to calculate the shortest path to each node. We see eigrp as a strategic protocol for many of our customers and therefore plan to continue our investment in eigrp and to work with other vendors on supporting eigrp. In a previous post, i have published a cisco switch commands cheat sheet tutorial. Here, you can find cisco packet tracer configurations of various network protocols on different network topologies.
Cisco router configuration commands cli cheat sheet in a previous post, i have published a cisco switch commands cheat sheet tutorial. Once you are in the router eigrp configuration submode, configure the classful network 172. Each router has a directly connected subnet that needs to be advertised through eigrp. Basic router configuration routing protocols and concepts. The default administrative distance of eigrp is 90, which is less than the default administrative distances of rip and ospf, which means that eigrp routes will be preferred over rip and ospf routes. There are two major revisions of eigrp, versions 0 and 1. In previous lessons i explained the basics of redistribution and i also showed you how to configure redistribution between ospf and rip. Eigrp enhanced interior gateway routing protocol is ciscos proprietary routing protocol based on diffusing update algorithm.
In this cisco ccna tutorial, youll learn how to configure bgp the border gateway protocol neighbors in a service provider environment. It is the enhanced distance vector protocol, which relies on a diffused update algorithm to determine the shortest path to the destination within the network. 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. 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. The network depicted above consists of only two routers. We can enable eigrp only for specific networks using wildcard masks. Depending on the router model and cisco ios software version, the commands available and output produced might vary from what is shown in this lab. In the picture above, you can see that all of the 24 ports of the switch are in the same vlan, namely vlan 1.
Configuring the eigrp route summarization autonomous system configuration 22. Configuring the eigrp route summarization autonomous system configuration 27. Eigrp protocol operation is pretty complex but that complexity is handled by the cisco ios software behind the stage. The two ethernet interfaces have ip addresses coresponding to subnets of 10.