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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://congressreiki.ranm.org/?all=lab_challenges/TroubleShooting_Lab_Challenge_1/

Comments (14) Comments
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  1. Stan
    October 5th, 2017

    Noticed the same issue with EIGRP lab challenge.

  2. 9tut
    October 6th, 2017

    @Stan: Thanks for your information. We have just fixed the topology links.

  3. DustChains
    November 19th, 2017

    Question No: 6 (For Me, Might Change for others) R1 & R3 cannot form an OSPF neighbor adjacency. What is causing this problem?
    **They say that the answer is “R3 is configured with wrong router-id”. But when we see the configurations using “show ip ospf” both R1 & R3 has the same router-id.

  4. Anonymous
    December 7th, 2017

    hello any one have latest ccna ( 200 – 125 ) dumps ?? , kindly please sent me at syedabdulhaseeb93 @ gmail com , i will be very thankful . please

  5. John
    December 13th, 2017

    Thank you

  6. zsolt
    May 6th, 2018

    Could you please send me the latest questions of CCNA? I will take the exam next week.
    Thank you.
    (zsolt19950120(at)gmail(dot)com

  7. Iftikhar
    May 7th, 2018

    zsolt I have same matter like you. I am also appearing next week for CCNA (R&S)
    If your got dumps please share with me or if any body have it….. iftikhar(AT)WUM.EDU.PK

  8. chris
    June 6th, 2018

    R2 and R5 cannot form an ospf neighbor adjacency. what causing this problem?
    ans: wrong network statement on R5

    But in R5 there is no ospf defined in the interface s1/0. Either the config of R5 is wrong or the answer is wrong(choices is wrong

  9. JJ
    July 11th, 2018

    @chris:

    The lab ans is CORRECT. The ospf network statement should be declared inside R5 interface Serial 1/0.
    But instead, the network statement is declared as if its network type is ‘BROADCAST’. In this case, R5 running-config indicated that the network type of interface S1/0 is a ‘POINT TO POINT’. Thus the network statement on R5 is wrong.

  10. JJ
    July 11th, 2018

    Thank You 9tut!
    I am looking forward to more lab/troubleshooting exercises!

  11. Thang
    August 2nd, 2018

    tks

  12. Erik
    September 9th, 2018

    Be careful with some questions that have the choice: “Wrong network statement is on R5/R3/R1”.
    Because this one only cause to problem if we configure OSPF on router with “network” command:
    R1(config)# router ospf 1
    R1(config-router)# network 192.168.25.0 0.0.0.255 area 0

    However, in 9tut, they configure OSPF on each specific interface of router:
    R1(config)# int e0/1
    R1(config-if)# ip ospf 1 area 0

    There’s no “network” command here, that’s why we can immediately exclude that choice.
    Hope it help!!!

  13. Anonymous
    November 5th, 2018

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  14. Rold
    January 2nd, 2019

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