How to configure enhanced interior gateway routing protocol. Because of this, routes are summarized to classful address at network boundaries in the routing updates. To disable eigrp, use the no router eigrp 165535 command. Each router has a directly connected subnet that needs to be advertised through eigrp. Eigrp general hybrid rputing protocol uses dual algorithm protocol independant classless routing protocol. Lets take a look to figure below and configure this topology via eigrp step by step. Jun 30, 2017 eigrp configuration is really awesome and not so hard if you compare with ospf or etc. The book provides an overview of essential concepts, terminology, and eigrp mechanisms, in addition to a look at the most important configuration options. With rtp, eigrp can simultaneously multicast and unicast to different peers, which allows for maximum efficiency. Troubleshooting commands when problems arise on cisco devices, there are a number of show commands you can use to help identify what the problem is. Eigrp 97 configuring eigrp 97 eigrp auto summarization 98 verifying eigrp 98 troubleshooting eigrp 99 configuration example.
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. Eigrp supports classless routing, vlsm, route summarization, load balacing and many other useful features. Prerequisite eigrp fundamentals enhanced interior gateway routing protocol eigrp is a dynamic routing network layer protocol which works on the protocol number 88. To view a specific route within the ip routing table. 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. This tutorial explains how to configure eigrp routing protocol in cisco routers step by step with practical example in packet tracer. Essential cisco ios commands internetwork training. 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. Eigrp uses diffusing update algorithm dual to determine the best path among all feasible paths. The network depicted above consists of only two routers. Eigrp has predefined commands that lets the user check the networks status from the console. This section includes ios commands that are absolutely identical on both routers and switches, except the part of.
Figure 32 contents of the tables used by eigrp reliable transport protocol rtp is a transport layer protocol that guarantees ordered delivery. Configuring a dynamic routing protocol eigrp for connecting different networks. After overview of eigrp, it is time to take a look at eigrp configuration. Nov 04, 2019 to disable enhanced interior gateway routing protocol eigrp nonstop forwarding nsf, use the nsf disable command in appropriate configuration mode. How to configure eigrp in cisco packet tracer youtube. Eigrp was designed by cisco system as a proprietary protocol which is available only on cisco routers. Comparison of rip, ospf and eigrp routing protocols based on. Where we really see the major difference is in regards to the configuration. Once you are in the router eigrp configuration sub. With this eigrp config, we will see important eigrp commands on cisco packet tracer. To enable the logging of enhanced interior gateway routing protocol eigrp neighbor warning. You can verify that routers have become neighbors by using the show ip eigrp neighbors command on either router. Cisco ios router configuration commands cheat sheet pdf.
Sep 04, 2016 eigrp is an advanced distance vector routing protocol. Eigrp has the fastest router convergence among the three protocols we are testing. Ccnp routing and switching portable command guide cisco press. Eigrp enhanced interior gateway routing protocol is ciscos proprietary routing protocol based on diffusing update algorithm.
Specify vrf name if you want eigrp to work within the specified vrf. Here are all the ccnplevel commands youll need, in one handy resource. Eigrp configuration and troubleshooting commands sysnet. Figure 81 illustrates the network topology for the configuration that follows, which shows how to configure eigrp using the commands covered in this chapter. All routers should be running an eigrp as number of 12.
Eigrp configuration and troubleshooting commands sysnet notes. Basic cisco router eigrp configuration pluralsight. This section includes ios commands that are absolutely identical on both routers and switches, except the. Eigrp 99 chapter 4 switching concepts 103 chapter 5 switches 105 chapter 6 switch configuration 107 help commands 107 command modes 107 verifying commands 108 resetting switch configuration 108 setting host names 109. Bgp cisco configuration cisco products cloud comparison configuration dhcp eigrp high availability interview ip packet ip. Eigrp adheres to the following hybrid characteristics. Ccna certification eigrp configuration lab simulation. 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. Path first spf algorithm which is used to calculate the shortest path to each node. In this example, we will configure eigrp on packet tracer. This command is executed in eigrp configuration mode to statically specify an eigrp neighbor. To reenable the eigrp nsf from a disabled state, use the no form of this command. Eigrp and troubleshooting routing protocols 69 ip routing protocols eigrp appletalk routing protocol ipx routing protocols ip.
Use the router eigrp command in global configuration mode to enable eigrp on the r1 router. Eigrp is a very popular routing protocol selection for those. The first step is to gain access to the cisco device and access global configuration mode. This command provides us with information on eigrp timers, eigrp metrics and summarization. Continuing our cisco commands cheat sheet for ccna students, this is our 3rd post. An autonomous system is simply a group of eigrpenabled routers that should become eigrp neighbors and exchange routes. This article is mainly concentrated on configuration of rip and eigrp together to get the above mentioned benefits. 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. If this process is not familiar, then read more about rip configuration. How to configure enhanced interior gateway routing.
Eigrp cheat sheet successor primary route to a destination. To configure a router id for an enhanced interior gateway routing protocol eigrp process, use the routerid command in the appropriate configuration mode. Eigrp enhanced interior gateway routing protocol eigrp is a ciscoproprietary hybrid routing protocol, incorporating features of both distancevector and linkstate routing protocols. Enhanced interior gateway routing protocol is ciscos proprietary routing protocol based on. Eigrp enhanced interior gateway routing protocol, is a cisco proprietary hybrid routing protocol. Currently, the eng router does not have connectivity to the isp router. 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. Enhanced interior gateway routing protocol eigrp configuration in router01. Protocol select the protocols from which to redistribute routes into eigrp, for all eigrp sessions. In order to become neighbors, all routers must be configured with the same as number. By default, eigrp has the auto summary feature enabled. To remove the address family from the eigrp configuration, use the. Please refer the beginning of this lesson to view the enhanced interior gateway routing protocol eigrp configuration ios command.
Connect to router01 console and use the following ios commands to configure enhanced interior gateway routing protocol eigrp in router01. 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. Enhanced interior gateway routing protocol eigrp is one of the most. Router mgt is also running static routing to the isp. Comparison of rip, ospf and eigrp routing protocols based. Eigrp is an advanced distance vector routing protocol. Advertised distance cost between next hop and a destnation. The ccnp routing and switching portable command guide is filled with valuable, easytoaccess information, and its portable enough to use whether youre in the server room or the equipment closet. Ipv6 eigrp configuration example stepbystep icnd2 200105. The configuration of eigrp is similar to other routing protocols. This command uses the network id of the subnet and a wildcard mask to identify the network range.
Bgp cisco configuration cisco products cloud comparison configuration dhcp eigrp high availability interview ip packet ip routing ipv6 ip voice juniper configuration juniper routing juniper security lan technologies layer 1 load balancing monitoring and management mpls multicast nat. 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, easyto. Configure the network above with eigrp using autonomous system number 90. Enhanced interior gateway routing protocol eigrp is an advanced dynamic routing protocol that is used for routing decisions and configuration on the routers. This command is executed in eigrp router configuration mode to specify which interfaces participate in the eigrp routing process. Fast reroute means we switch to another next hop, loopfree alternate is an alternative path in the network that is loop free. To better understand the concept of autosummarization, consider the following example. To configure eigrp only on interface fa00, the network 10. Eigrp must be enabled before carrying out any of the eigrp commands. We want to enable eigrp only on the subnet connected to the interface fa00. One of the biggest advantages that eigrp has over other highly scalable routing protocols is that its configuration is rather simple.
Step by step eigrp configuration example networkel. Enhanced interior gateway routing protocol eigrp is a powerful distance vector routing protocol and is relatively easy to configure for basic networks. Eigrp can call on rtp to provide reliable or unreliable service as the situation warrants. Sep 23, 20 continuing our cisco commands cheat sheet for ccna students, this is our 3rd post. Eigrp configuration is really awesome and not so hard if you compare with ospf or etc. Ccnp routing and switching portable command guide cisco. The ccnp certification is the second most common cisco certification covering mastery of more advanced routing and switching topics, now including security and wireless. Eigrp timers do not have to match for two routers to form an adjacency. Comparison of rip, ospf and eigrp routing protocols based on opnet. 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 activated on a router by entering configuration mode and the eigrp command. Ccna v3 200125 certification eigrp configuration lab simulation manual, exam answers 2017. May 07, 2016 configuring a dynamic routing protocol eigrp for connecting different networks. To cause the software to use the default method of determining the router id, use the no form of this command.
Eigrp exchange messages for communication between the routers operating eigrp. Basic cisco commands by marcus nielson 2014 configuring basic switch settings switch examples enter enable if the prompt has changed back to switch. However, configuring the hold timer manually is done in seconds. Figure 31 routing protocols supported by eigrp figure 32 illustrates the fundamental contents of each table that eigrp uses. Eigrp loopfree alternate lfa fast reroute frr is a feature that allows eigrp to switch to a backup path in less than 50 ms. Configuring mutual eigrp and rip redistribution free. In this lab, you will configure eigrp for the topology and networks shown above. 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. Now see the benefits of using this type of routing configuration. This article takes a look at the configuration of the enhanced interior gateway routing protocol eigrp. Depending on the model and cisco ios version, the commands available and output produced might vary from what is shown in the labs. 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.
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