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/

Comments (31) 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?