Home > Troubleshooting Lab Challenge 1 (OSPF)

Troubleshooting Lab Challenge 1 (OSPF)

July 25th, 2015 Go to comments

Your customer network is running OSPF. An engineer has edited the network configuration and now their users are experiencing network issues. They have contacted you to resolve the issues and return the network to full functionality.

OSPF_Topology.jpg

Please access this lab challenge via this link: http://www.autismtoday.com/?page=lab_challenges/TroubleShooting_Lab_Challenge_1/

Comments (25) Comments
  1. Colin
    July 29th, 2015

    No network statements in router ospf 1
    R3 E0/0 admin shut

  2. Sultan
    July 30th, 2015

    hi there
    the lab is really messed up, plz check n confirm

  3. 9tut
    July 30th, 2015

    @Sultan: If you have any question about this lab, please post here. We will help you.

  4. Kreuxie
    August 13th, 2015

    How do I access the LAB?

  5. 9tut
    August 21st, 2015

    @Kreuxie: You just need to click on the link above.

  6. JD
    August 26th, 2015

    where is the link to get paid membership of 9tut?

  7. Rikki
    August 26th, 2015

    found 2:
    R3 – E0/0 shutdown
    router ospf – router id is wrong.

    please advise the correct answer. tq

  8. 9tut
    August 27th, 2015

    @Rikki: After answering all the questions in the quiz you will see the correct solution for each question.

  9. cisco lover
    September 13th, 2015

    if i provide wrong answer there is no correct answers given in review session
    for an example in question 2 there are 2 answers suitable those are
    2. an interface R3 is shutdown
    3. the ospf area IDs of R3 and R5 are mismatched
    but why you have given the 2nd answer ( an interface R3 is shutdown ) as correct ans

  10. 9tut
    September 13th, 2015

    @cisco lover: It is a bug in our simulator. Thanks for your information, we have just fixed it.

  11. cisco lover
    September 13th, 2015

    i noticed another problem on question 3 ( R1 and R4 cannot form an OSPF neighbor adjacency . what is causing this problem ? )

    actually there is Hello and dead time mismatch but you all given the answer as the ospf network between R1 &R4 are mismatched

    How could it be ???

  12. cisco lover
    September 14th, 2015

    hi 9tut any update regarding above question ??

  13. 9tut
    September 14th, 2015

    @cisco lover: Yes, thanks for your detection. We have just updated it.

  14. Coodyscoops
    October 21st, 2015

    hey @9tut, for question 4… I’m not sure if its intentional, but the correct answer isn’t entirely clear. The reason router 2 and 5 cant establish adjacency is because OSPF isn’t enabled on s1/0 on R5, but then the answer there is that the wrong network statement is on R5, which isn’t true since there weren’t any that I saw present on s1/0 anyway.

    Is question 4 supposed to be like that or am I right?

    Thanks!

  15. 9tut
    October 21st, 2015

    @9tut: The wrong network statement here is “network 192.168.125.0 0.0.0.255 area 125”. It should be “network 192.168.25.0 0.0.0.255 area 125”.

  16. coodyscoops
    October 22nd, 2015

    ah yeah… i didnt even see that… thanks

  17. Anonymous
    January 25th, 2016

    is this lab coming in exam

  18. Lawrence Nehlor
    March 3rd, 2016

    I think lab need IP addresses to point out if the configuration in the network are ok.

  19. Anonymous
    March 21st, 2016

    Hi! I am planning to take the exam next week.. Is there any changes on the lab in the real exam? How about the concepts, are the dumps have same questions to be asked in the real exam? TIA..

  20. abdulai
    March 30th, 2016

    This lab is helpful

  21. sysco
    April 6th, 2016

    thanks for sim – helps a lot

  22. chinna
    July 21st, 2016

    where can i find explanation for the labs..

    what commands are useful. can some one post apart from sh run

  23. Dipa
    August 14th, 2016

    Question 6

    R4 and R5 has no same Area ID as well as different Hello and Wait time intervals.

    Which option should be chosen as ans ?

  24. Chittu
    October 9th, 2016

    Area between Router 1 and Router 2 are different (i.e at r1 12 and at r2 125)

    and interface eth0/0 are down at router 3

  25. 9tut guide me
    December 27th, 2016

    all questions answers are right or not?