Home > Checking Lab Challenge 4 (VTP, STP, EtherChannel, NAT, OSPF, HSRP)

Checking Lab Challenge 4 (VTP, STP, EtherChannel, NAT, OSPF, HSRP)

April 23rd, 2016 Go to comments


You are tasked to check the network configuration of a new company and answer some related questions. This company has four switches and four routers connected as shown in the topology. Because of security reasons, the traceroute commands are disabled on all devices.

Note: You are not allowed to configure anything by company policy. The network is operating correctly so just use various “show” commands to learn how this network works.

This lab is good to help you understand how a simple network with routers and switches work together. But it includes many CCNA topics so you should grasp the concept well before taking this lab challenge.

The topology of this lab is shown below.


This is the link to access this challenge: http://www.9tut.com/lab_challenges/Checking_Configs_CCNA/

Note: There is a question about HSRP Route Tracking which is out of scope of CCNA so please ignore it.

Comments (42) Comments
  1. chumo
    May 5th, 2016

    hello, i cant access to this labs, should i use a specific browser?
    thanks in advance

  2. Anonymous
    May 9th, 2016

    hello, i cant access to this labs ?

  3. Fancy
    May 11th, 2016

    I did the first , i had been failed so it was new about me . so will try more to complete achievement . any where than you

  4. johny bravo
    May 19th, 2016

    dear 9tut great lab , just notice there is a question with 2 answers the same :
    which path pc 13 use to reach r9……
    there is twice SW4-SW3-SW1-R9

  5. 9tut
    May 23rd, 2016

    @johny bravo: Thanks for your detection. We have just fixed that problem!

  6. talor
    July 4th, 2016

    dear 9tut,
    at the last question it says that there is load-balance between the 2 routers.
    how load balance is possible in ospf protocol?
    its only possible in EIGRP

  7. 9tut
    July 5th, 2016

    @talor: OSPF still supports load-balancing with equal-cost paths. EIGRP can support unequal cost path load balancing.

  8. Dear 9Tut
    July 8th, 2016

    Can I download this network topology? because I want to practice with the real.


  9. 9tut
    July 8th, 2016

    We are sorry but we don’t offer a file to download. You can create one with your networking simulator/emulator.

  10. Alf
    July 11th, 2016

    I think the question about Ospf R9 is incorrect:
    a backbone router has all interfaces in area 0, R9 is only an ABR attached to area 0 and other areas.

  11. Alf
    July 11th, 2016

    I apologize for the previous comment : I found 2 different ospf definition from offcial books:
    backbone router = Any OSPF router that has at least one interface connected to the backbone area.
    Backbone router = A router in one area (the backbone area).
    So a backbone router can be a ospf router sitting only in area 0 or an ABR!

  12. vaish
    July 15th, 2016

    I am also seeing blank page when clicked on SW, R, H for lab commands.
    I have packet tracer in my PC.
    kindly tell what to do

  13. vaish
    July 15th, 2016

    kindly ignore the above comment it is working now .

  14. Anonymous
    July 23rd, 2016

    Great exercise

  15. Snuque
    August 4th, 2016

    there is this question: if shut down interface Lo0 on R7 what will be the hsrp prio on SW2?
    is it really part of CCNA? I cannot find any reference to route tracking – not even to interface tracking in the books (100-101 and 200-101)

  16. Anonymous
    August 12th, 2016

    I am also seeing blank page when clicked on SW, R, H for lab commands. These are html pages. How can I check SW, R and H configuraitons ?

  17. 9tut
    September 19th, 2016

    @Snuque: You were right. We forgot route tracking is not for CCNA. Please ignore that question.

  18. mincha
    September 25th, 2016

    hello, in cant view the questions because i need a plugin
    do you know haw install these plugin?

  19. tim
    September 28th, 2016

    where can we download the topology from ?????

  20. Hasib
    November 1st, 2016

    hi! i cant access to this labs ?

  21. sgddgdxgxgxs
    December 9th, 2016


  22. G
    February 14th, 2017

    I can’t run a show glbp command on the switches, can you help with this?

  23. aj style
    February 28th, 2017

    very nice lab

  24. 9tut
    March 1st, 2017

    @G: This lab does not use GLBP so we don’t support that command.

  25. abcd
    March 1st, 2017

    I have a Cisco Packet Tracer 7, but I still cant get access, can u pls help

  26. abcd
    March 1st, 2017

    Guys pls help

  27. Train
    March 4th, 2017

    Very useful lab

  28. Alex
    March 24th, 2017

    cool stuff i ganed 155 points and it took me 40 min

  29. BBBB
    April 7th, 2017

    I can’t run commands

  30. loving network
    April 8th, 2017

    just good

  31. Mr. CCNA
    April 17th, 2017

    Do you guys have the latest VCE?

  32. Tbone
    May 20th, 2017

    I cannot see the CLI when I click on the buttons on the right. What am I doing wrong?

  33. CCNA soon
    September 8th, 2017

    Thanks for this lab.

  34. ROxan
    October 6th, 2017

    @9tut: Just for knowledge, can you elaborate or give a link maybe on why will the priority of the active router change if a loopback0 on router 7 goes down.
    anyways it will still be able to access ISP.

  35. 9tut
    October 7th, 2017

    @ROxan: We forgot route tracking is not for CCNA. Please ignore that question.

  36. nerdjv
    November 13th, 2017

    Hi! I’ve tried this on cisco packet tracer. R5 wasn’t able to translate any of, and to the internet. Can you possibly know why? I wasn’t able to ping from any of the hosts. Thank you.

  37. CCNA2017
    November 23rd, 2017

    @9tut: Thanks for this nice LAB, I failed just 1 question that is outside the scope of current INCD2v3. The question number 7. It is regarding the HSRP Track object.
    If that LAB is for CCNA, please edit this one. Thanks!

  38. FKD
    December 26th, 2017

    The guys who are having issues in accessing the lab on web browser. Please use IE since Chrome has stopped its support for Flash Player. If you still can’t access Lab on IE Browser. please make sure that flash player is installed or upgrade it. Some times, it could be asking for permission to be executed in Browser. Allow the flash to be able to load the lab. hope that helps.

  39. Sandeep Singh
    January 18th, 2018
  40. Atul Verma
    January 18th, 2018
  41. rika
    January 25th, 2018

    How can i get these gns3 labs files and IOS to practice on GNS 3? tHANKS FOR YOUR HELP

  42. Sweety Patel
    March 12th, 2018

    Hello,I can’t access this lab?can you give me any suggestion.

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