Basic cisco router eigrp configuration pluralsight. First, you need to start eigrp with the ipv6 router eigrp command. This book describes the commands used to configure and monitor enhanced interior gateway routing protocol eigrp routing capabilities and features. Eigrp command reference november 2010 routemap command. To better understand the concept of autosummarization, consider the following example. Basic cisco commands by marcus nielson 2014 configuring basic switch settings switch examples enter enable if the prompt has changed back to switch. We can enable eigrp only for specific networks using wildcard masks. In a previous post, i have published a cisco switch commands cheat sheet tutorial. Oct 22, 2014 i wont tell you the answer completely, but lets use the eigrp network. Enhanced interior gateway routing protocol eigrp is an enhanced version of igrp. Cisco eigrp is an open standard igp routing protocol that provides advantages such as. This time well take a look at redistribution between eigrp and rip. Ip routing eigrp configuration guide, cisco ios release 15s.
You can verify that routers have become neighbors by using the show ip eigrp neighbors command on either router. 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. Eigrp has been around for some time on cisco equipment and for the most part is only supported on cisco devices. Enhanced interior gateway routing protocol eigrp is an advanced dynamic routing protocol that is used for routing decisions and configuration on the routers. Igrp was still a distance vector routing protocol, but in addition to distance, cisco allowed the protocol to carry more information about the path. I wont tell you the answer completely, but lets use the eigrp network. This tutorial explains how to configure eigrp routing protocol in cisco routers step by step with practical example in packet tracer. It is regarded as an interior gateway protocol igp but has also been used extensively as an exterior gateway protocol for. Eigrp commands afinterface ire7 cisco ios ip routing. Eigrp enhanced interior gateway routing protocol is an advanced distance vector routing protocol. Eigrp configuration step by step guide this tutorial explains how to configure eigrp routing protocol in cisco routers step by step with practical example in packet tracer. Configuring eigrp 14 eigrp router id 15 eigrp autosummarization 15 passive eigrp interfaces 16 pseudo passive eigrp interfaces 17 eigrp timers 17 injecting a default route into eigrp. To reset the addressfamily interface setting to factory values, use.
For eigrp configuration information and examples, refer to the cisco ios ip routing. Enhanced interior gateway routing protocol eigrp is a powerful distance vector routing protocol and is relatively easy to configure for basic networks. Eigrp routes are denoted in the routing table with a d, which stands for dual diffusing update algorithm, which is the routing algorithm used by eigrp. Eigrp commands set metric eigrp ire114 cisco ios ip routing. Eigrp was also a proprietary protocol, but cisco decided in 20 to convert it to an open standard. Because of this, routes are summarized to classful address at network boundaries in the routing updates. Connect to router01 console and use the following ios commands to configure enhanced interior gateway routing protocol eigrp in router01.
In previous lessons i explained the basics of redistribution and i also showed you how to configure redistribution between ospf and rip. Eigrp is a cisco proprietary routing protocol which means its only found on cisco equipment. Continuing our cisco commands cheat sheet for ccna students, this is our 3rd post. In these lessons we start with the basics of eigrp and end with the most advanced topics. Eigrp enhanced interior gateway routing protocol eigrp is a ciscoproprietary hybrid routing protocol, incorporating features of both distancevector and linkstate routing protocols. This routing protocol is mostly used on cisco devices and all routers in the network must support it. Redistribution ospf, rip, eigrp, static cisco community. Enhanced interior gateway routing protocol eigrp dummies.
Routing protocol eigrp process, use the autosummary command in the appropriate. 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. A destination in the topology table can be marked either as passive or active. Eigrp is an exceptional option as it mixes a number of the major advantages of other routing. Next, we need to enable eigrp authentication on an interface. Enhanced interior gateway routing protocol eigrp is an update to ciscos now obsolete interior gateway routing protocol igrp. Eigrp enhanced interior gateway routing protocol is ciscos igp interior gateway protocol that was made an open standard in 20. Eigrp enhanced interior gateway routing protocol is a classless, distance vector routing protocol. Ccnp routing and switching portable command guide cisco press. Sep 06, 2017 eigrp enhanced interior gateway routing protocol is a classless, distance vector routing protocol. As with autosummarization, the router performing manual summarization will add the.
Eigrp has a default administrative distance of 90 for internal routes and 170 for routes imported from an external source, such as default routes. The configuration of eigrp is similar to other routing protocols. Configuring the eigrp route summarization named configuration 24. Igrp is ciscos interior gateway routing protocol used in tcpip and osi internets. This protocol is an evolution of an earlier cisco protocol called igrp, which is now considered obsolete. It is regarded as an interior gateway protocol igp but has also been used extensively as an exterior gateway protocol for interdomain routing. Eigrp is commonly the routing protocol of choice when using an all cisco network with no requirement for crossvendor operation. In this example, we will configure eigrp on packet tracer. All route 300101 and switch 300115 commands in one compact, portable resource.
Essential cisco ios commands internetwork training. Ccnp routing and switching portable command guide, 2e. Eigrp command reference november 2010 afinterface to enter addressfamily interface configuration mode and to configure interfacespecific enhanced interior gateway routing protocol eigrp commands, use the afinterface command in addressfamily configuration mode. Cisco ios router configuration commands cheat sheet pdf. How to configure enhanced interior gateway routing protocol. Redistribution of a static route 18 injecting a default route into eigrp. Shows information about the switch and its interfaces, ram, nvram, flash, ios, etc.
Eigrp can call on rtp to provide reliable or unreliable service as the situation warrants. With rtp, eigrp can simultaneously multicast and unicast to different peers, which allows for maximum efficiency. Ccnp routing and switching portable command guide cisco. Sep 23, 20 continuing our cisco commands cheat sheet for ccna students, this is our 3rd post. By default, eigrp has the auto summary feature enabled. Managing cisco ios software 33 boot system commands 33 configuration register 33 cisco ios software prerelease 12. The network depicted above consists of only two routers. You cannot run eigrp on juniper or adtran or any other router for that matter since eigrp is special only to cisco. 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.
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. Eigrp enhanced interior gateway routing protocol, is a cisco proprietary hybrid routing protocol. The local interface that received the neighbors hello packet. The original protocol was built to overcome issues in routing information protocol rip. The router will share the eigrp learned routes with the ospf routers in area 20. Here are all the ccnplevel commands youll need, in one handy resource. Eigrp configuration step by step guide computernetworkingnotes. Shows the current configuration file stored in dram. 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. Bgp cisco configuration cisco products cloud comparison configuration dhcp eigrp high availability interview ip. Eigrp supports classless routing and vlsm, route summarization, incremental updates, load balacing and many other useful features. Eigrp adheres to the following hybrid characteristics.
Gateway routing protocol eigrp commands, use the afinterfacecommand in. On the router thats running eigrp 200 and ospf 10, youll do dual redistribution. In order to become eigrp neighbors, routers must be configured with the same as number. Enhanced interior gateway routing protocol eigrp configuration in router01. Eigrp uses diffusing update algorithm dual to determine the best path among all feasible paths. Eigrp replaced interior gateway routing protocol igrp, an older proprietary cisco routing protocol. The chapter 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. From the interface mode, the following commands are used. Eigrp neighbors continued a neighbor table is constructed from the eigrp hello packets, which includes the following information. Ip default network 18 injecting a default route into eigrp.
Each router has a directly connected subnet that needs to be advertised through eigrp. The ip bandwidthpercent eigrp command limits the percentage of. You will modify bandwidth and configure passive interfaces to allow eigrp to function more efficiently. A passive state is a state when the router has identified the successors for the destination. Eigrp and troubleshooting routing protocols 69 ip routing protocols eigrp appletalk routing protocol ipx routing protocols ip. With this eigrp config, we will see important eigrp commands on cisco packet tracer. Eigrp uses the source code of d for dual in the routing table. Routing command reference for cisco ncs 6000 series routers. Eigrp command reference july 2010 introduction this book describes the commands used to configure and monitor enhanced interior gateway routing protocol eigrp routing capabilities and features. Summarization defined both auto and manual along with the metric associated with each summary.
This section includes ios commands that are absolutely identical on both routers and switches, except the part of. 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. The set commands specify the set actionsthe particular redistribution actions to perform if the crit eria enforced by the match commands are met. Please refer the beginning of this lesson to view the enhanced interior gateway routing protocol eigrp configuration ios command. This is an advantage and a disadvantage depending on what side of the debate you are on. To better understand the concept of autosummarization, consider the.
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