At first I had some trouble understanding route redistribution. I’ve tried getting better at it and now I have a solid understanding of it. Darren did some labs on his blog and I decided to give it a go as well. It is really good practice to create a lab of your own. Surprisingly it is more difficult than one would expect to create tricky scenarios, this is my go at it.

This is the topology.

The goal of the lab is to achieve full reachability and provide optimum routing. Since all links have the same bandwidth the fewer number of hops the better the route (try staying inside the routing domain if possible).

Follow these steps in order:

  • Configure mutual redistribution between RIP and EIGRP on R5
  • Configure mutual redistribution between OSPF and EIGRP on R3
  • Configure mutual redistribution between OSPF and EIGRP on R2
  • Configure mutual redistribution between RIP and OSPF on R7
  • Configure mutual redistribution between RIP and OSPF on R8

All interfaces have been preconfigured with IP-adresses.

Download the topology and initial config here. Post your findings in the comments section.


Redistribution lab in GNS3/Dynamips
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9 thoughts on “Redistribution lab in GNS3/Dynamips

  • July 31, 2011 at 6:20 pm

    Great effort !
    The only problem I have is that the net file on notepad can not be modified.
    I have a different IOS image and a different path to GNS3 so I need to change those but it does no allow me to do it.Can you do something about it ?
    Thank you

  • July 31, 2011 at 8:48 pm

    I tried downloading it myself and editing and had no issues. Anyone else having issues? What you could do is copy the text ctrl+c into a new file and then ctrl+v and do your edits. That should solve it.

  • August 1, 2011 at 6:13 pm

    I am using the same router platform that you are (3725). Only difference is the ios version. So mine opens just fine. I’m also able to modify the .net file.

  • Pingback:Redistribution lab in GNS3/Dynamips (via Daniels quest for CCIE) « mungauwamaseghe

  • April 26, 2012 at 12:09 pm

    thanks for this, I liked very much playing with it
    my strategy was to achieve full connectivity, and then playing with distance and distribute-liste to choose the shortest path, did you work that way ?

    • April 26, 2012 at 12:49 pm

      If it is a complex scenario I would usually start out by drawing the routing domains and looking for potential issues. If there is no requirement for optimum paths I would settle for loop free topology. If optimum paths need to be chosen then I would start to tweak topology with distribute-lists and distance command.

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  • March 19, 2017 at 3:33 pm

    Does anyone have solution for this?


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