Home > Ticket 1 – OSPF Authentication

Ticket 1 – OSPF Authentication

March 30th, 2015 in TSHOOT v2 Go to comments

1.Client is unable to ping R1’s serial interface from the client.

Problem was disable authentication on R1, check where authentication is not given under router ospf of R1. (use ipv4 Layer 3)

Configuration of R1:

interface Serial0/0/0
 description Link to R2
 ip address 10.1.1.1 255.255.255.252
 ip nat inside
 encapsulation frame-relay
 ip ospf message-digest-key 1 md5 TSHOOT
 ip ospf network point-to-point
!
router ospf 1
 router-id 1.1.1.1
 log-adjacency-changes
 network 10.1.2.0 0.0.0.255 area 12
 network 10.1.10.0 0.0.0.255 area 12
 default-information originate always
!

Configuration of R2:
interface Serial0/0/0.12 point-to-point
 ip address 10.1.1.2 255.255.255.252
 ip ospf authentication message-digest
 ip ospf message-digest-key 1 md5 TSHOOT
!

Answer: on R1 need command ip ospf authentication message-digest”

Ans1) R1
Ans2) IPv4 OSPF Routing
Ans3) Enable OSPF authentication on the s0/0/0 interface using the “ip ospf authentication message-digest” command.

Note:

There are two ways of configuring OSPF authentication:

interface Serial0/0/0
  ip ospf message-digest-key 1 md5 TSH00T
!
router ospf 1
  area 12 authentication message-digest

OR

interface Serial0/0/0
  ip ospf authentication message-digest
  ip ospf message-digest-key 1 md5 TSH00T

So you have to check carefully in both interface mode and “router ospf 1”. If none of them has authentication then it is a fault.

Comments (45) Comments
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  1. sandy
    June 3rd, 2017

    Guys, can anyone please help me understand what is the difference between normal networktut and becoming a premium member of it?will I get notified with any changing questions if I enroll as a premium member?

  2. Anonymous
    June 8th, 2017

    Hi Sandy,
    This is just a name premier member. once you pay monthly subscription, you become premium member. yes, you will get to see all updated questions once you become premium member.
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  3. alpha
    June 10th, 2017

    hi i dont see topology here. I just see question and answer. I am confused . Can someone tell me how to see the topology for question

  4. prison2722
    June 16th, 2017

    can someone send last updated questions to me. Thanks a lot
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  5. Real Questions
    July 3rd, 2017

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  6. Anonymous
    July 3rd, 2017

    Hello NetTut, R4 should not have 0.0.0.0/0 learned via ospf because there are no ospf neighbors between R1 and R2 and R1 is the only one who advertises default route into internal network via OSPF with “default-information originate always”

  7. Nick
    July 15th, 2017

    How many M/C questions on the exam?

  8. Kash
    July 17th, 2017

    hi good pple,
    with this tickets are you meant to solve the question or just find where the problem is??

  9. Mkzozo
    July 25th, 2017

    this is old stuff but it is more than enough to pass the exam. some of the questions have been removed from the exam. check for bgp lab ibgp

  10. REALL
    August 2nd, 2017
  11. mkzozo
    August 2nd, 2017

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  12. Peter
    August 2nd, 2017

    Passed today with 1000. Ticket valid.

  13. BIGKIDS
    August 12th, 2017

    hi

    R1 ospf does not cover 10.1.1.0/24 range.

    so we have 2 problems that ip ospf authen and network for 10.1.1.0/24

    how do we determine to choose one of those ?

  14. Sid
    August 24th, 2017

    Does the real exam support sh run configuration command? I don’t see that option showing up on Cisco demo exam. Could anyone answer?

    Appreciate your help!

  15. Prem
    August 25th, 2017

    regarding ticket 1 answer :

    there is no serial 0/0/0 interface on R1
    and on ethernet 0/0 authentication is not configured on R1 as well as on R2
    please reply

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    August 25th, 2017

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  18. bariu
    September 20th, 2017

    where I can get the full configuration of “IPv4 Layer 3 Topology”

  19. amba
    September 25th, 2017

    If you do a traceroute from DSW1 to the WEB Server, it will show you that the trace is working up to 10.1.1.9 of R3. However, that traceroute should be going one hop further. It should really stop at 10.1.1.5 of R2. I think it is an error in this simulation. And that error can mislead somebody into thinking that the problem lies between R2-R3 but it really isn’t.

  20. mdee
    October 1st, 2017

    hello. im a new premium member. this question is a bit confusing. the ospf neigh is not forming on R1, so it is ospf problem. however, it CANNOT BE the authentication, because both routers have the correct settings/syntax. however, the network statement in R1 doesn’t include it’s serial 10.1.1.0 0.0.0.3 area 12, and so i thought the correct answer was to configure R1 with 10.1.1.0 0.0.0.255 area 12. was this a typo?

  21. networktut
    October 2nd, 2017

    @mdee: Note:

    There are two ways of configuring OSPF authentication:

    interface Serial0/0/0
    ip ospf message-digest-key 1 md5 TSH00T
    !
    router ospf 1
    area 12 authentication message-digest

    OR

    interface Serial0/0/0
    ip ospf authentication message-digest
    ip ospf message-digest-key 1 md5 TSH00T

    So you have to check carefully in both interface mode and “router ospf 1”. If none of them has authentication then it is a fault.

  22. Dave
    October 8th, 2017

    Took the exam 6/10/17 and everything on this website is correct. Fantastic work Networktut.com. You would have to be beyond CCNP level to easily solve all the problems inside two hours. Help from sites like these is essential for most people.

  23. Student CCNP
    October 15th, 2017

    Can someone pls share path or link for PDF having all above mentioned questions and answers for tshoot exam.

  24. covlack
    October 18th, 2017

    is this ticket still valid ?

  25. CCNP student
    October 21st, 2017

    Took the exam on 10/18/17, everything is different. Please update

  26. Mark
    October 21st, 2017

    @CCNP student
    Different questions or different Tickets?

  27. valdi
    October 25th, 2017

    @CCNP student

    Please don’t confuse people here.

    All tickets/questions are still the same.

  28. Tshoot1Fail
    October 26th, 2017

    Took exam today..Failed.
    The answers to the faults are already present in the tickets. Eg BGP Ticket already has correct IP but for question has an option to change IP from 56 to 65 and few other options which are not even related. Please let me if if its ok to leave the fault answer as open and close the ticket i mean with answer the 3rd question can we still mark ticket done because in BGP case the IP was correct in show run

  29. CCNP
    November 1st, 2017

    I took the same a couple of days ago and everything was the same as here.

  30. daoquocsiatgmail.com
    November 17th, 2017

    Hi,

    Someone can let me know how I can see questions?
    Or I have to become premium member and how come?

    Brs,

  31. Chris
    November 18th, 2017

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  32. Anonymous
    November 19th, 2017

    This question was still in the exam today.

  33. Fern
    November 20th, 2017

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  34. Network-student
    November 20th, 2017

    Can anyone please share the latest dumps link

  35. Miguel
    December 6th, 2017

    Hello team,

    The real exam shows the topology of the network?

  36. SAm
    December 9th, 2017

    Team anyone please share ocn Tshoot me the latest valid dump of Tshoot. Exam is on next week.Thanks in advance,please help. email id {email not allowed}

  37. Anonymous
    December 13th, 2017

    Hello All,

    Please can anyone send me the pdf 300-135 to me {email not allowed}
    Am planning to write the exam by 15 of Dec, 2017.looking forward to hear from you.

    Thanks

  38. Anonymous
    December 18th, 2017

    please could anyone send me the 300-135 to me
    {email not allowed}

  39. Anonymous
    December 19th, 2017

    hello All

    about this certification CCNP 300-135

    tell me please the step to validate ticket for ccnp 300-135 troublehoot

    i must valide each of this question ?

    Question-1 Fault isfound on which device,
    Question-2 Fault condition is related to,
    Question-3 What exact problem is seen & what needs to be done for solution

    then ticket is validate

    or i can switch between this 3 questions

    why i say that : cause if i have the response of question 3 then i can answer question 1 and 2.

    OR

    i must find the solution for each ticket : hsrp, eigrp, ospf, bgp, authentification ospf, access list etc.

    thanks a lot

  40. geo
    December 26th, 2017

    Yea! You have possibility to return to the previous question and change it
    but for each your new answer it’ll be available different variants of answers for next question (“tree” scheme). Ticket validation is required only when You are sure found the correct answers.

  41. luks4real
    January 2nd, 2018

    pls i need the dump for 300-135.. luks4real at yahoo.com

  42. jgsodia
    January 2nd, 2018

    i took the exam last 20th Dec and i failed, i retook the exam 28th Dec and i passed. all you need is here, the exam is the same in both ocasions

  43. tim
    January 7th, 2018

    do I have to make any configuration or answering the questions is enough ???????

  44. engineer
    January 10th, 2018

    please, I need labs to practice, Can you show me where I can found them?

  45. NotAnonymous
    January 12th, 2018

    @engineer – They are available with the premium version. Just sign up for that, and you have it made.

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