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EIGRP GRE Troubleshooting Sim

March 19th, 2018 Go to comments

Refer to the topology below. Your company asks you to identify the issues in Phase 1 EIGRP implementation. You have console access on R1, R2, R3 Branch1 and Branch2 routers. Only use show commands to troubleshoot the issues.

Topology.jpg

Question 1

Explanation

R1 routing table does not have any EIGRP learned routes so R1 or the link between R1 & R2 is the most likely problem. We should check if the IP addresses on R1 and R2 are correct or not with the “show ip interface brief” command.

R1_show_ip_interface_brief.jpg

Note: You should check the IP address of R2 E0/0 interface (the interface connected to R1) as well.

Question 2

Explanation

The “main office” here refers to R2 (and other routers behind it). Check Branch2 with the “show ip route” command:

Branch2_show_ip_route.jpg

We can see Branch2 only uses 192.168.12.1 (Branch 1 – the secondary path) to reach R2 and the subnets behind. Branch2 does not use the primary path (directly connected to R2) so there must be a problem with the connection between R2 and Branch2. Check Branch2 router with the “show running-config” command and we can see an access-list is blocking EIGRP packets advertised to Branch2.

Branch2_show_run.jpg

Question 3

Explanation

This issue is same as Question 2 but this time it is R3 which causes the issue. We can check R3 with the “show running-config” command.

R3_show_run.jpg

Question 4

Explanation

In this question we should check the local routers to see if these subnets have been advertised or not as there are many issues in the path which prevent these subnets from being shown in the routing tables.

When checking Branch1 router, we notice “network 172.16.0.0” is missing under EIGRP 200 so answer D is correct.

Branch1_show_run.jpg

Comments (27) Comments
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  1. Anonymous
    January 12th, 2020

    Please let me know if this lab has changed questions and answers?

  2. Please I need EIGRP GRE Troubleshooting Sim
    January 13th, 2020

    The .pkt file posted by ABDALLA ABDALLA is not opening in packet tracer

  3. AceMeng
    January 16th, 2020

    The file Anonymous posted says it isn’t compatible with packet tracer. Please help!

  4. jelilat
    January 19th, 2020

    This EIGRP GRE sim was in my questions yesterday with ACL sim 2… I passed it

  5. Herbie
    January 20th, 2020

    Can anyone forward latest CCNA dumps at hghiorsi at aol dot com. Thank you very much in advance.

  6. ???
    January 29th, 2020

    Hello
    Please CCNAv3 questions 7
    Thanks

    oa554537@gmail (.)com

  7. Wendel
    January 30th, 2020

    Just passed on the exam today with this same lab, and both ACL lab’s as well.
    A few bgp and qos questions were also on the exam along with the all question that they alreawndy have.

  8. H
    February 2nd, 2020

    Just passed on the exam today with this same lab, and both ACL lab’s as well.

  9. Question about real exam format:
    February 6th, 2020

    Hi 9tut and all, in the exam SIMs is it same format as here, that you just need to choose the right answer after troubleshooting, or do you (also) need to correct the configuration in CLI so that you restore the connectivity issues between routers?

    i.e you fix the Access List issue by removing it from the interface etc. and do copy running-config startup-config…?
    Thanks a lot for your replies…

  10. Frank
    February 6th, 2020

    Hi, I’ve tried to download and use it, but when I open the .pkt file it tells me that the version that I have from Cisco Packet Tracer is not compatible with the file. What version do you use?
    Thank you!

  11. BekshoX
    February 9th, 2020

    Hello
    i am taking the CCNA 200-125 on the 12th of February 2020, pleas kindly send me the latest dumps to my email
    CCNAV3 questions 1-7
    oa554537@gmail (.)com
    Thanks

  12. Anonymous
    February 9th, 2020

    evening people can someone share me ccna 200-125 dumpu and vce email {email not allowed}

  13. Anonymous
    February 9th, 2020

    Hello
    i am taking the CCNA 200-125 on the 12th of February 2020, pleas kindly send me the latest dumps to my email
    mahlangufolly@gmail (.)com

  14. certificadores
    February 10th, 2020

    Question 1
    Examine the R1 routing table. None of the internal routes other than
    locally connected appear in the routing table.
    Which cause of the issue is true?
    Answer:C. EIGRP packets were blocked by the inbound ACL on R1
    Question 2
    The traffic from Branch2 to the main office is using the secondary
    path instead of the primary path connected to R2. Which cause of the
    issue is true?
    Answer: C. EIGRP packets were blocked by the inbound ACL on
    Branch2
    Question 3
    The GRE tunnel between R3 and Branch1 is down. Which cause of the
    issue is true?
    Answer: D. The EIGRP neighbor relationship was not formed due to
    the IP address being misconfigured between the R2 and R3 interfaces.
    Question 4
    You are verifying the EIGRP configurations in the topology. Which
    statement is true?
    Answer: B. Branch2 LAN network 172.16.10.0/24 is not advertised
    into the EIGRP network

  15. certificadores
    February 10th, 2020

    in some versions, above questions are coming for the same sim. so there are two versions and answers for exact the same sim.

  16. Matt
    February 10th, 2020

    Passed the EXAM 920/1000 Feb 9th, This sim was in exam and ACL SIM 1 and ACL LAB. They manipulated all the question just learn how to advertise networks and the subnets double check it.
    Goodluck to all 9TUTers. 5 MCQ’s are new to me about MPLS, GRE TUNNEL IPV6

  17. Viin
    February 10th, 2020

    I don;t understand why the first question’s answer is “D” ?
    D. IP address was misconfigured between the R1 and R2 interface
    R1 Eth0/1 192.168.14.5
    R2 Eth0/0 192.168.14.2
    Any wrong?

  18. Candidate
    February 10th, 2020

    Exactly…how could this the ans is D … ??

    I can see both IP are correct…. 14.5 and 14.2
    Any clue ?

  19. Jonathan Sick
    February 11th, 2020

    @Candidate I 14.5/30 and 14.2/30 It’s in different subnet

  20. Candidate
    February 11th, 2020

    Hi @jonathan…

    It will be appreciate if you kindly explain a bit more…i am not getting the point unfortunately…

    Thank you.

  21. Laurita
    February 12th, 2020

    @Candidate interface Ethernet0/1on R1 has ip address 192.168.14.5/30 & interface Ethernet0/0 on R2 has ip address 192.168.14.2/30. They are directly connected but are on different subnets /30 has only 4 addresses in total (192.168.14.0-192.168.14.4) Hope this answer helped!

  22. Candidate
    February 12th, 2020

    @Laurita …

    Ahhh crap :3 My bad…. Thanks for enlighting me ^_^ .. Cheerz..

  23. Yacine
    February 14th, 2020

    I’m taking exam this comming weak please send to me the latest dumps {{email not allowed}} thank you so much for all person here!

  24. Anonymous
    February 14th, 2020

    I’m taking exam this comming weak please send to me the latest dumps thank you so much for all person here!

  25. Abraham
    February 20th, 2020

    Anyone passed exam in last 2-3 days, which lab was part of exam.
    i have on tomorrow

  26. victor cortez
    February 21st, 2020

    I made exam today at 14pm. Same lab.
    Do

  27. riv
    February 22nd, 2020

    today I present 9xx
    3 lab
    dhcp
    acl2
    eigrp

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