Tillywood is where all the famous blockbuster movies are created in Tilburg, The Netherlands. This year there is a convention and all big star actors will be there. Cisco is promoting the event and thus you are going to use EIGRP as the routing protocol of choice to get connectivity. Since you are close to passing your CCNA exam this should be no problem for you…get to work!


  • All IPv4 addresses have been preconfigured for you.
  • Each router has a loopback0 interface.
  • Configure EIGRP AS 1 on the frame-relay network connecting router Bates, Bond and Corleone. Advertise the loopback0 interfaces.
  • You notice that router Bond and Corleone do not see each others loopback interfaces in the routing table. Configure router Bates to solve this.
  • Configure EIGRP AS 1 on both fastethernet links connecting router Bates and oHara.
  • Change the bandwidth on the fastethernet 1/0 interfaces so only fastethernet 0/0 is used for successor routes.
  • Configure EIGRP AS 1 on router Dobbs and Corleone.
  • Make sure you disable auto-summary for EIGRP AS 1.
  • At this point you should have full connectivity for all networks and loopback0 interfaces.
  • Create a summary on interface serial0/0 of router Dobbs so it advertises /16 with an administrative distance of 85.
  • Change the EIGRP K-Values so only delay will be used as a metric.
  • Ensure router Bates can use the frame-relay network as a feasible successor route to network /24.
  • Make sure you see this feasible successor route not only in the topology table but also in the routing table.
  • Enable authentication between router Dobbs and Corleone.  Use a keychain called “VAULT” and password “LABS”.

It took me 1000s of hours reading books and doing labs, making mistakes over and over again until I mastered all the protocols for CCNA.

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I collected all my knowledge and created a single ebook for you that has everything you need to know to become a master of CCNA.

You will learn all the secrets about EIGRP, frame-relay, summarization, successors, feasible successors and more.

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EIGRP for CCNA Network Topology

Video Solution:

Configuration Files

You need to register to download the GNS3 topology file. (Registration is free!)

Once you are logged in you will find the configuration files right here.

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The How to Master series helps you to understand complex topics like spanning-tree, VLANs, trunks, OSPF, EIGRP, BGP and more.

Written by René Molenaar - CCIE #41726


  1. Profile photo of Rene Molenaar says

    @Adrian yes this is something I still have to fix. The PDF plugin is kinda buggy… 😀

    @Sallie the frame relay switch in this topology is emulated, it’s not a Cisco router. If you download my topology than the serial links should be connected already, it should work right away.

  2. Profile photo of Karthick.S says

    Can someone help me out for run this GNS3 Topology File in my GNS 3 which i have downloaded from the above link.
    Because when, i try to do that it is showing and prompt like:

    "Local IOS image /Data /IOS Images/c3640-jk903s-mz.124-16.bin
    cannot be found for hipervisor localhost:7200
    Please select an alternate image:\Networking\Emulator Software\IOS images\c3640-jk903s-mz.124-16a.image"

    then i click ok its prompting:

    open: permission denied.

    Any idea/sugession

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  3. Profile photo of Michael Cook says

    Hi Rene,

    Excellent lab. Thank you for the hard work you put into this. I had one question. For the step "Ensure router Bates can use the frame-relay network as a feasible successor route to network /24." would it be simpler to increase the delay on S2/0.1 rather than decreasing the delay through the other path? This seemed to work for me.



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  4. Profile photo of Vincent Guidi says

    When completing the EIGRP CCNA 1 lab, the serial link between Dobbs and Corleone remain up/down. I assume that this is a bug in GNS3 – just wondered if anyone else has experienced this and, if so, did they manage to resolve the issue ? Reloaded devices/PC and recreated the serial link etc, to no avail.

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  5. Profile photo of natash says

    *Mar 1 00:05:05.807: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor (Serial1/0) is up: new adjacency
    *Mar 1 00:08:10.355: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor (Serial1/0) is down: retry limit exceeded

    I tried a few IOS and chassis, it looks like GNS3 bug, which version are you using?

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  6. Profile photo of Alan says

    I have two questions.

    Firstly, I gather I use the topology.net file and the final cfg from the other file.

    Lastly, I can’t seem to get the cfg file to work with the routers. I am using the same router and IOS as you. I do have the two in a folder in the right place I believe.

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  7. Profile photo of Robert says

    I think this site is amazing and all that you are doing to help others. But I’ve run into confusion. You have two zip files to download but no information on why there are two and no description. Not even on your lab do you explain which file to use…

    EIGRPforCCNA1 – Final Configs.zip

    EIGRPforCCNA1.zip – EIGRPforCCNA1.zip

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    • Profile photo of jason r says

      @ntguy73- the final configs.zip is the config file once the lab has been completed. it’s what your config should look like once you’ve done the lab successfully. it’s posted so you can cross-check.

      the eigrpforccna1.zip contains the topology pre-built for this lab. using gns3, you open the topology file. make sure you’ve imported the ios image referred to here: IOS: c3640-jk9o3s-mz.124-16.bin
      without that ios though, the lab may not function according to spec.

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  8. Profile photo of mark says

    Rene – You have done a magnificent job working thru these topics. I was wondering if you could also do some coaching?
    I’m going from a old CCNA to my CCNP, and it would be great to have a schedule to follow. Something like:
    Week 1 EIGRP Packets and metrics > Lab (Example) Packets and metrics
    Week 2 EIGRP Authentication and Advanced features. > Lab XXXXXXX
    Week 3 OSPF > Lab XXXXXXXX
    It would be great for me on my journey to know that I am progressing with competency. If I can walk thru your labs on EIGRP and then do them on my own with confidence, I feel like I can move on to the next section/subject.
    The time line helps me set a expectation of progress. If I can bite off the whole CCNP course material (with labs) in XX weeks I can schedule that and know if I am on schedule of behind.
    Just a thought.
    Really appreciate the content.

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  9. Profile photo of Ezeh says

    This is a great Lab I just successfully working on but I really wonder whether if one could Create a summary on interface serial0/0 of router Dobbs so it advertises /16 with an administrative distance of 85. knowing well that there is no EIGRP configuration between router Dobbs and router oHara

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  10. Profile photo of Olawale Olaleye says

    Hello friends ..
    Please help me. I can’t open this lab. I realized this lab was saved with the new version of the gns3 1.1 which has the extension (.gns3). I tried opening it on my flawless 0.8.6 version, but it didn’t run. I eventually had to install the new version 1.1. but it still didn’t work. It keeps giving an error (Traceback (most recent call last): with some plenty jargon that I don’t understand. Am I missing something? please help. This is seriously standing in the way of CCNP route study. Please any assistance will be very much appreciated

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  11. Profile photo of Olawale Olaleye says

    Precisely this error
    Traceback (most recent call last):
    File “C:\Python33-64bit\lib\site-packages\cx_Freeze\initscripts\Console3.py”, line 27, in
    File “gns3-gui/gns3/main.py”, line 222, in
    File “gns3-gui/gns3/main.py”, line 87, in main
    File “C:\Python\64-bit\3.3\lib\argparse.py”, line 1708, in parse_args
    File “C:\Python\64-bit\3.3\lib\argparse.py”, line 2364, in error
    File “C:\Python\64-bit\3.3\lib\argparse.py”, line 2334, in print_usage
    File “C:\Python\64-bit\3.3\lib\argparse.py”, line 2345, in _print_message
    AttributeError: ‘NoneType’ object has no attribute ‘write’

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      • Profile photo of Rene Molenaar says

        I just tried this file on my Windows 7 machine and it’s working…I’ve seen this “cx_Freeze” error a couple of times now with GNS3 but never experienced it myself. Maybe check the GNS3.com forum to see how to fix it?

        If I know a solution I’ll let you know.

  12. Profile photo of Steve says

    Hello Rene,
    Thanks very much for this and all the work you have put into this site !I have piles of books to do the CCNA, but I really think doing it this way has far more benefits. I’m running GNS3 1.2.3 on Windows 7 Professional 64 bit and I did not have any issues running through this lab. ( with your help of course!) I made sure that I had the same IOS image file imported first, and was up and running in no time.

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  13. Profile photo of Edy says

    Rene, I need your helop please. I have the GNS ver 1.2.3 and downloaded these lab files. I keep getting error

    => Server error [-3200] : Dynamips executable C:\Program Files\GNS3\dynamips doesn’t exist
    Server error [-3200] : Dynamips executable C:\Program Files\GNS3\dynamips doesn’t exist
    Server error [-3200] : Dynamips executable C:\Program Files\GNS3\dynamips doesn’t exist

    It wont let me add the links because it says the devies are not configured. I have checked the path for IOS images, it seems ok. By the way the devices on the topology had letters E and S in Red. Not sure if that means anything,. Thanks

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  14. Profile photo of Al Etelman says

    I’m able to run this lab just fine, after I define the correct IOS. I’m using Windows 7 Professional. The IdlePC works great for this box.
    Only problem, the topology doesn’t match the website diagram, so I changed the router names, connections, etc, to agree with the diagram listed on the web site.

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  15. Profile photo of Ashwani Purohit says

    hello sir
    i want a question about goals which u achieved in your video tutorial….
    Ensure router Bates can use the frame-relay network as a feasible successor route to network /24
    to achieve this u change delay with FE int and serial int, of bates, ohara, dubbs etc.
    my question is can we change the delay of bates s2/0 int, to achieve this goal….
    actually i did.and its works fine..
    please tell me is i am right or wrong, and what is the effect will happen when i do with my way…

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