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OSPF Sim

June 23rd, 2011 in LabSim Go to comments

Question

9tut.net company has decided to network three locations to improve efficiency in inventory control. The routers have been named to reflect the location: Boston, Frankfurt, Lancaster.

OSPFSim

The necessary networking has been completed at each location, and the routers have been configured with single area OSPF as the routing protocol. The Boston router was recently installed but connectivity is not complete because of incomplete routing tables. Identify and correct any problem you see in the configuration.

Note: The OSPF process must be configured to allow interfaces in specific subnets to participate in the routing process.

You can download this lab and open with Packet Tracer here: http://www.9tut.net/download/OSPF_Sim_with_Solution.zip. Please say thanks to Renan who shared the files with us!

Answer and Explanation:

The question mentioned Boston router was not configured correctly or incomplete so we should check this router first. Click on PC-B to access the command line interface (CLI) of Boston router.

 

Boston>enable (type cisco as its password here)

Boston#show running-config

 

OSPF_sim_show_run

First, remember that the current OSPF Process ID is 2 because we will need it for later configuration. Next notice that in the second “network” command the network and wildcard mask are 192.168.155.0 and 0.0.0.3 which is equivalent to 192.168.155.0 255.255.255.252 in term of subnet mask. Therefore this subnetwork’s range is from 192.168.155.0 to 192.168.155.3 but the ip address of s0/0 interface of Boston router is 192.168.155.5 which don’t belong to this range -> this is the reason why OSPF did not recognize s0 interface of Boston router as a part of area 0. So we need to find a subnetwork that s0 interface belongs to.

IP address of S0 interface: 192.168.155.5/30

Subnet mask: /30 = 1111 1111.1111 1111.1111 1111.1111 1100

Increment: 4

Network address (which IP address of s0 interface belongs to): 192.168.155.4 (because 4 * 1 = 4 < 5)

Therefore we must use this network instead of 192.168.155.0 network

Boston#configure terminal

Boston(config)#router ospf 2

Boston(config-router)#no network 192.168.155.0 0.0.0.3 area 0

Boston(config-router)#network 192.168.155.4 0.0.0.3 area 0

Boston(config-router)#end

Boston#copy running-config startup-config

Finally, you should issue a ping command from Boston router to Lancaster router to make sure it works well.

Boston#ping 192.168.43.1

Other lab-sims in ICND2 Exam:

ICND 2 – Nat Sim Question

VTP SIM (on 9tut.com)

EIGRP Lab sim (on 9tut.com)

 

Other lab-sims might appear in the real ICND 2 exam, read and understand them if you have enough time.

Comments
Comment pages
1 2 3 54
  1. Helper
    May 28th, 2014

    Hi, just curious, I see loads of people asking for the .pkt file for this ospf sim, can some please just post it on this site :-)

  2. Bambi
    June 7th, 2014

    Alright everyone, just passed today with a 933! The Hush dump is pretty accurate along with the questions on this site. Memorize these like the back of your hand so you can spend your brain power on the labs.

    On one of the above labs, someone mentioned that they changed one of the answers to the PPP as the issue (may have been the 6 router one from what I recall). This seems to be true. I eliminated all the answers except for that one. If you get nervous on tests, it is important to really think about what interface you are looking at for each router and eliminate the multiple choice answers one by one.

    Study the hush dump like crazy, and the labs even more so by setting up a packet tracker environment similar to the three labs on the test (OSPF, security simlet and the show lab).

    Good luck!!

  3. kenneth
    June 23rd, 2014

    can anybody send me a vce player please. my email is kenneth.mulaudzi@yahoo.com

  4. Bacon
    August 2nd, 2014

    Hello All,

    I’ve noticed there is no download .PKT file. So I’ve created this Lab SIM.

    https://www.sendspace.com/file/042ijg

    Good Luck to all candidates :)

  5. Rokan
    September 3rd, 2014

    Thanks Renan

  6. hubuda
    September 11th, 2014

    thanks to Renan for the pkt tracers

  7. Thanks Renan
    October 17th, 2014

    Thanks Renan your awesomeness :-)

  8. Anonymous
    October 28th, 2014

    always thought the OSPF process was locally significant ? not like EIG|RP which is the Autonomous system ID ??

    #router ospf 1 – process id
    #network a.b.c.d 0.0.0.0 area 0 – areas need to match for neighbours to work

  9. Anonymous
    November 6th, 2014

    The OSPF process ID is locally significant, however if you place networks into a separate process ID from the rest of your network entries it will not consider it a part of the existing routing process. For example using two different ospf process id’s on a single router you could have two separate area 0’s within your network environment.

  10. Carlos
    November 21st, 2014

    Just passed the ICDN2 today, scored 990!!

    Questions here are dead on however there are way too many that are no longer valid, for the latest buy pass4sure and you will be all good!
    l

    Later

  11. Kurkure
    November 30th, 2014

    Looks like Carlos works for Pass4sure.

  12. OSPF sim commands not working
    December 5th, 2014

    THANKS RENAN! 😉

  13. ThisKid
    December 16th, 2014

    Thanks Renan!

  14. Koke
    January 2nd, 2015

    Can someone please confirm if this SIM is still valid on the new ICND2.

  15. Rafael ccent
    January 18th, 2015

    I will let you know KOKE i
    am taking the test on the 20th of january 2015

  16. surfsup
    January 24th, 2015

    can anyone confirm that this is the same ospf sim with the same ip addresses? sitting exam soon.

  17. Mr.Paul
    January 27th, 2015

    no one has pointed out that you can just do a show run on router Frankfurt to get the ospf adjacency.
    you still have to remove the network but it is a lot quicker.

    router ospf 2
    log-adjacency-changes
    network 192.168.155.8 0.0.0.3 area 0
    network 192.168.155.4 0.0.0.3 area 0
    network 192.168.29.0 0.0.0.255 area 0
    !

  18. HR
    February 4th, 2015

    I appreciated to Renan

  19. Sakhi
    February 4th, 2015

    Please tell me friends….i heard that after 29th January 2015 the ccna exam course will b change…is it true ??????

  20. Victor
    February 6th, 2015

    Yea it seems it is true. I failed today. I think it is approximately 40% of the questions that were completely new ones.

  21. moha
    February 9th, 2015

    thnx Renan

  22. BR
    February 14th, 2015

    Hello Everyone, can someone please send me the latest dumps for 200-120 at brbyfar@yahoo.com?

  23. Anonymous
    February 17th, 2015

    hi all
    can any body tell us more about ospf lab ?
    thank you

  24. K4l-eL
    February 18th, 2015

    Thanks Renan!

  25. ali
    February 19th, 2015

    hi all
    is ospf lab as 9tut icnd2 lab or any change ?
    thank you

  26. Anonymous
    February 23rd, 2015

    thanks renan

  27. Anonymous
    February 26th, 2015

    hi zain and all
    can send me the latest dump for icnd1 / icnd 2 exam?
    i going to take exam at march

  28. A.
    February 28th, 2015

    Thanks Amigo – Great SIM

  29. Nic
    March 3rd, 2015

    Hi Guys, who will be able to help me with braindumps? everywhere I search on the internet, I have to pay and if you from South Africa, and you must multiply the amount that is in $ by 14 , it comes to a enormous amount :) . Please it would be appreciated if someone can mail me a few. Thank you in advance. nallers@grintek.com

  30. JustMe
    March 12th, 2015

    Just passed my ICND2, 920/1000. 98% of the questions is http://www.9tut.net/category/icnd2.

    Thank you!

  31. Eric
    March 15th, 2015

    Hi all, Im new on here. Can someone pls send me latest dump for ICND1 and 2..Thank You all

  32. jack
    March 27th, 2015

    thanks Renan for sharing this pkt file

  33. Jennifer
    March 29th, 2015

    Hey guys is this OSPF simulation still valid for ICND2 in 2015?

  34. Anonymous
    March 30th, 2015

    Hi! I’m new here. Can someone please send me the latest dumps for ICND1 and ICND2 ?
    Thanks!!
    jver1111@yahoo.com

  35. Jayzee
    April 2nd, 2015

    is it valid dump till now as some ppl saying that exam has been changed and this is not valid now.. any one??

  36. stand
    April 21st, 2015

    is this sim 4 icnd1 or icnd2

  37. Anonymous
    April 29th, 2015

    Hi.

    May I have the latest dumps for ICND1 and ICND2?

    Thanks,

    edmonkg@yahoo.com

  38. Anonymous
    May 3rd, 2015

    are these sims still valid?

  39. anonymous1000
    May 4th, 2015

    if someone could send me the new dumps that would be freaking amazing

  40. anonymous1000
    May 4th, 2015

    my email address is jethurman@embarqmail.com

  41. Jonny
    May 6th, 2015

    Can you send latest ccna dump to ksoom2001@yahoo.com. Thanks

  42. Anonymous
    May 14th, 2015

    please send the latest icdn1 dump to courtneyalove@yahoo.com

  43. Rob
    May 19th, 2015

    Took the test 19/5/15, there was an OSPF sim but it was completely different to this one. It was a testlet (no configuration needed).

  44. Anonymous
    June 4th, 2015

    |——————————————————————————————|
    | WinMTR statistics |
    | Host – % | Sent | Recv | Best | Avrg | Wrst | Last |
    |————————————————|——|——|——|——|——|——|
    | 10.9.0.2 – 73 | 1090 | 300 | 2 | 20 | 68 | 5 |
    | 172.16.24.2 – 1 | 1090 | 1089 | 3 | 8 | 844 | 4 |
    | 172.16.25.20 – 1 | 1090 | 1089 | 4 | 15 | 6710 | 5 |
    | 116.68.208.90 – 1 | 1090 | 1089 | 3 | 14 | 7015 | 5 |
    | 116.68.214.75 – 0 | 1090 | 1090 | 9 | 22 | 6860 | 11 |
    | ix-0-1-0-0.tcore1.MLV-Mumbai.as6453.net – 0 | 1090 | 1089 | 46 | 61 | 6701 | 51 |
    | if-9-5.tcore1.WYN-Marseille.as6453.net – 20 | 1089 | 882 | 164 | 172 | 1474 | 169 |
    | if-8-1600.tcore1.PYE-Paris.as6453.net – 2 | 1089 | 1072 | 153 | 166 | 6328 | 157 |
    | if-2-2.tcore1.PVU-Paris.as6453.net – 2 | 1089 | 1072 | 150 | 157 | 954 | 157 |
    | 80.231.153.66 – 1 | 1089 | 1085 | 184 | 203 | 5837 | 232 |
    | ae-2-70.edge3.Washington4.Level3.net – 29 | 1089 | 778 | 268 | 287 | 610 | 323 |
    | ae-2-70.edge3.Washington4.Level3.net – 32 | 1089 | 747 | 270 | 286 | 423 | 369 |
    | 4.53.116.78 – 1 | 1089 | 1080 | 284 | 300 | 860 | 343 |
    | be12.bb01.iad3.tfbnw.net – 1 | 1089 | 1087 | 285 | 300 | 482 | 331 |
    | ae12.bb04.frc3.tfbnw.net – 1 | 1089 | 1084 | 285 | 305 | 589 | 352 |
    | ae63.dr02.frc3.tfbnw.net – 1 | 1089 | 1087 | 285 | 300 | 511 | 334 |
    | No response from host – 100 | 1089 | 0 | 0 | 0 | 0 | 0 |
    | No response from host – 100 | 1089 | 0 | 0 | 0 | 0 | 0 |
    | edge-star-shv-12-frc3.facebook.com – 1 | 1089 | 1086 | 285 | 302 | 1716 | 365 |
    |________________________________________________|______|______|______|______|______|______|
    WinMTR – 0.8. Copyleft @2000-2002 Vasile Laurentiu Stanimir ( stanimir@cr.nivis.com )

  45. Abhishek
    June 15th, 2015

    ICND2 200-101 above 15 dumps are valid or expired?
    Anybody currently given ICND2 200-101 exam with above dumps?

  46. Anonymous
    June 22nd, 2015

    Find this helpful video related to ip addressing on youtube:
    https://www.youtube.com/watch?v=m3pxEZBpaZY

  47. Jane
    June 26th, 2015

    I was not able to get the pkt file Renan created to work. Packet Tracer becomes unresponsive.. Please advise!!

  48. Anonymous
    June 26th, 2015

    just follow the link for dumps
    wurl. cc/dumps

  49. Anne Normous
    July 1st, 2015

    This was on my exam today – scored 980/1000. Thanks 9tuts

  50. James
    July 6th, 2015

    What program file do I need to open a file 100-101vce from examcollection?
    I can open it but its not readable.

  51. penis
    July 10th, 2015

    wtf is this on ICND2 exam? I thought it was only Frame Relay and EIGRP lab sims…

  52. medidi
    July 21st, 2015

    check out the exam topics from the sisco website, i just don’t NAT and Access list, but you still have to know them cause they could be part of the T/S questions

  53. Jay
    August 4th, 2015

    passed ICND 2 today
    know this sim
    no need for dump, this site is all you need to pass!

  54. Allan kiptalam
    August 6th, 2015

    what is the passmark ?

  55. Anonymous
    August 13th, 2015

    Anyone have a software to open the test (VCE) ?

  56. Sasha(Russia)
    August 16th, 2015

    Thank you, renan!

  57. Samson
    August 26th, 2015

    Hi all,its exciting reading the positive feedback on this forum.
    I am also in line to sit for my ICND1 in less than a month.

    DUMPS for ICDN1(and ICND2) would be greatly appreciated.
    Thanx in Advance

  58. Josh
    August 29th, 2015

    In packet tracer, I have tried different OSPF related show commands. But none of them showing this problem “192.168.155.0 255.255.255.252”
    How come ??’
    Can’t we use other command to troubleshoot this problem ??

  59. codplay12
    September 3rd, 2015

    just had icndi 2 and passed with 960 most questions came from here. however, you must prepare sims as i had 2 sim one eigrp one frame relay both sim are explained above. But instead of having OSPF there was just 4 questions where you had to provide answer how many network will be installed on R1 if OSPF was config with classful mask the topology was based on 6 routers and networks of 172.162.
    some of the questions were changed but if you study all tut and you get the idea then new questions will be answered without any pro

    good luck

  60. Bish
    September 9th, 2015

    Could someone send me the latest Dump please

    Bishopmike1218@me.com

  61. Safa
    September 13th, 2015

    Jay, my ICDN 2 is on the end of this month, how was yours, did you find all questions you expected according to 9tut or you had some different questions?

  62. papa
    September 14th, 2015

    Got icnd1 easily without vce or 9tut. Its just a basic stuff.
    Now doing icnd2 / next week and must say to all of you, 9tut is all you need for your ccna exams.
    Read ccna books and use 9tut.
    good luck all

  63. Dinesh
    September 14th, 2015

    I still understand and write Chinese, just not type fast engouh. Tell you guys with same name as mine, it is wonderful name according to the fortune-teller and I can be a witness too.

  64. Nona
    October 5th, 2015

    where can the dumps be downloaded from?

  65. Simao B.
    October 19th, 2015

    Please help!!!!!!!

    my ccna will expire on december ,in order to extend do i must recertified with ICND2????? Right!

  66. roberto
    October 30th, 2015

    tank you!!

  67. sikorka
    January 17th, 2016

    Great Explanation 😉

  68. yemi007
    January 26th, 2016

    Are this questions and sims up-to-date?

  69. kitkat
    January 29th, 2016

    passed ICND 2 today. most questions came from 9 tut. I had 2 sim: frame relay and ospf, just answer 4 questions!! Enter IOS commands to verify network operation and answer four multiple-choice questions. THIS TASK DOES NOT REQUIRE DEVICE CONFIGURATION. This is true. Thanks 9tut, good luck!

  70. yggd
    February 1st, 2016

    @9tut – There’s no sign in/sign up link anymore. What happened?

  71. yggd
    February 2nd, 2016

    Did they refund you money? or ..

  72. yggdwondering
    February 2nd, 2016

    Did they refund you money? or …

  73. wise
    February 3rd, 2016

    Hi everyone i passed my ICND2 on January 26 with 907/1000 all you need is this site and can you guys please help me with the site for CCNP now please. my email address is:{email not allowed}

  74. 9tut
    February 5th, 2016

    @yggd: Please send an email to support@9tut.net so that we can help you.

  75. Charles
    February 17th, 2016

    Someone please help me find the actual questions and not just the explanation
    Thanks

  76. Charles
    February 19th, 2016

    which is the questions for this sim ??pls help me

  77. haile2nice
    February 24th, 2016

    can some one please point me to the right direction at least. I needs dumps for ICND2. please email me at {email not allowed}

  78. yggd
    March 4th, 2016

    no need for refund, I can still sign in typing in the url but there’s no link at the top of the page anymore….

  79. Anny
    March 28th, 2016

    Hi, nice example about Open shortest path first (OSPF)..you can also use this…
    http://ipcisco.com/ospf-area-types-on-packet-tracer-part-3-stub-area-totally-stub-area-nssa-totally-nssa/

  80. SURAJ
    April 11th, 2016

    I am going to Write the CCNA ICND1 exam on May 1st Week . Is all the dumps in 9tut are valid. Since I here that the Cisco will change the questions frequently . Please help !! I am very much tensed

  81. tb123
    May 4th, 2016

    Guys not buying the brain dumps. Some of the questions were on my exam. As a matter of fact about 30% of the questions were on the exam – I used the answers that were provided and still did not pass .

    I should not rely on sites to help me as we should know the material. It is quite disappointing but for those of you wishing to continue to cheat – It is not worth it if you do not know the subject at hand!

  82. choto
    July 10th, 2016

    anyone has the current dumps for ccda?

  83. Peanut
    July 18th, 2016

    this is a great problem and answer.

    Thanks
    Peanut

  84. Peanut
    July 18th, 2016

    I would have thought to only type SHOW RUN but I guess this is the short cut or alias of SHOW RUNNING-CONFIG

    PT

  85. Anonymous
    July 30th, 2016

    what should a person focus on regarding the international exams

  86. naina
    August 20th, 2016

    i m going for icnd 2 exam at the end of this month any update about valid dumps
    i will be thankful

  87. Anonymous
    August 24th, 2016

    Please can anyone send me the latest dumps on clebaah@gmail. Thank you

  88. Lucas
    September 3rd, 2016

    naina. How was your exam. Are those question still up to date?

  89. Anonymous
    September 4th, 2016

    Great

  90. fish
    September 9th, 2016

    Hi deae/sir
    could you help how cold I get the questions I got only the answers.

  91. PS
    September 10th, 2016

    can anybody tell me why can’t I see the questions, i am already 9tut.net member. Today I am facing this problem ,it was not as before. I have my exam ICND2 this week? Kindly help me ??

  92. looking for help
    September 15th, 2016

    Used CBT nuggets and passed ICND1 now I did the same but I am afraid that I have no time to solve all questions. Can anyone help to send me valid dump to kamoona@gmail.
    my exam next week.
    Thanks

  93. looking for help
    September 15th, 2016

    Used CBT nuggets and passed ICND1 now I did the same to pass ICND2 but I am afraid that I have no time to solve all questions. Can anyone help to send me valid dump for ICND2 to kamoona@gmail.
    my exam next week.
    Thanks

  94. Ken
    September 23rd, 2016

    Appears there is mis-config in OSPF simulator ICND2

    Boston#config t
    Enter configuration commands, one per line. End with CNTL/Z.
    Boston(config)#router ospf 2
    Boston(config-router)#no network 192.168.155.0 0.0.0.3 area 0
    Boston(config-router)#network 192.168.155.4 0.0.0.3 area 0
    Boston(config-router)#end
    Boston#
    %SYS-5-CONFIG_I: Configured from console by console

    Boston#copy running-config startup-config
    Destination filename [startup-config]? y
    %Error copying nvram:y (Invalid argument)

    Tried twice no good-any ideas?

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