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OSPF Evaluation Sim

February 9th, 2015 in Lab Sim Go to comments

You have been asked to evaluate an OSPF network and to answer questions a customer has about its operation. Note: You are not allowed to use the show running-config command.

OSPF.jpg

Although in this sim we are not allowed to use “show running-config” command but we post the configuration here so that you can understand more about the topology.

R1
interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
interface Serial0/0
ip address 192.168.13.1 255.255.255.0
ip ospf network non-broadcast
no shut
!
router ospf 1
network 192.168.13.0 0.0.0.255 area 0
network 1.1.1.1 0.0.0.0 area 0
R2
interface Loopback 0
ip address 2.2.2.2 255.255.255.255
!
interface S0/0
ip address 192.168.23.2 255.255.255.0
ip ospf network non-broadcast
no shut
!
router ospf 1
network 192.168.23.0 0.0.0.255 area 0
network 2.2.2.2 0.0.0.0 area 0
neighbor 192.168.23.3
R3
interface Loopback 0
ip address 3.3.3.3 255.255.255.255
!
interface Ethernet0/0
ip address 192.168.34.3 255.255.255.0
no shut
!
interface S1/0
ip address 192.168.23.3 255.255.255.0
ip ospf network non-broadcast
no shut
!
interface S1/1
ip address 192.168.13.3 255.255.255.0
ip ospf network non-broadcast
no shut
!
router ospf 1
network 192.168.13.0 0.0.0.255 area 0
network 192.168.23.0 0.0.0.255 area 0
network 192.168.34.0 0.0.0.255 area 1
network 3.3.3.3 0.0.0.0 area 0
area 1 virtual-link 4.4.4.4
neighbor 192.168.23.2
R4
interface Loopback 0
ip address 4.4.4.4 255.255.255.255
interface Ethernet0/0
ip address 192.168.34.4 255.255.255.0
no shut
!
interface Ethernet0/1
ip address 192.168.45.4 255.255.255.0
no shut
!
interface Ethernet0/2
ip address 192.168.46.4 255.255.255.0
no shut
!
router ospf 1
network 192.168.34.0 0.0.0.255 area 1
network 192.168.45.0 0.0.0.255 area 2
network 192.168.46.0 0.0.0.255 area 3
network 4.4.4.4 0.0.0.0 area 1
area 1 virtual-link 3.3.3.3
area 2 nssa
area 3 stub no-summary
R5
interface Loopback0
ip address 5.5.5.5 255.255.255.255
interface Loopback1
ip address 5.5.1.1 255.255.255.255
interface Loopback2
ip address 5.5.2.1 255.255.255.255
interface Loopback3
ip address 5.5.3.1 255.255.255.255
interface Loopback4
ip address 5.5.4.1 255.255.255.255
interface Ethernet0/0
ip address 192.168.45.5 255.255.255.0
no shut
!
router ospf 1
network 192.168.45.0 0.0.0.255 area 2
network 5.5.0.0 0.0.255.255 area 2
area 2 nssa
R6
interface Ethernet0/0
ip address 192.168.46.6 255.255.255.0
no shut
interface Loopback 0
ip address 6.6.6.6 255.255.255.255
!
router ospf 1
network 192.168.46.0 0.0.0.255 area 3
network 6.6.6.6 0.0.0.0 area 3
area 3 stub

Some notices from above configuration:

+ The OSPF network type between R2 & R3 is non broadcast.
+ R3 and R4 is running virtual-link to connect Area 2 & 3 to Area 0
+ Area 2 is a NSSA area while Area 3 is a Totally Stubby area

You can download this sim to practice at http://www.digitaltut.com/download/ROUTE_OSPF.zip. Please use GNS3 with version older than v1.0 to open it (v0.8.3.1 for example). IOS used in this lab: c3640-jk9s-mz.124-16.bin

Question 1

Explanation

To check OSPF LSA we should use the “show ip ospf database” command on R5:

R5_show_ip_ospf_database.jpg

In this sim there is no LSA Type 4 because there is no ASBR so maybe this question wants to ask about LSA Type 3 (Summary Net Link States).

Note: LSA Type 4 is generated by ABR, not ASBR but without ASBR inside the network there are no LSA Type 4 generated. For more information about OSPF LSA Types please read our OSPF LSA Types Lab tutorial.

R3 advertises LSA Type 1 to R4 then R4 converts it into Type 3 and sends to R5 (because R4 is the ABR) so we see the “Link ID” 3.3.3.3 of R3 is advertising by R4 (4.4.4.4). According to the “Age” column, this LSA was advertised 1858 seconds ago.

Question 2

Explanation

Check the Serial1/0 interface of R3 which is connected to R2 with the “show ip ospf interface serial 1/0” command:

R3_show_ip_ospf_interface_serial.jpg

There are two things we should notice from the output above:
+ The “network type” connection between R2-R3 is “NON_BROADCAST” (usually we have “BROADCAST”). OSPF neighbors are discovered using multicast Hello packets. In non broadcast environment, multicast (and broadcast) messages are not allowed so OSPF neighborship cannot be formed automatically. Therefore we have to establish OSPF neighborship manually by using “neighbor ” command under OSPF process (OSPF will send unicast Hello message to this address). For example on R2 we have to use these commands:

router ospf 1
neighbor 192.168.23.3

And on R3:

router ospf 1
neighbor 192.168.23.2

+ For non broadcast environment the default Hello timer is 30 seconds; Dead timer (time to wait before declaring a neighbor dead) is 120 seconds and Wait timer (causes the interface to exit out of the wait period and select a DR on a broadcast network. This timer is always equal to the dead timer interval) is 120 seconds. In the output we also see the default timers for non broadcast network.

Question 3

Explanation

We can check the number of executed SPF algorithm via the “show ip ospf” command on R4:

R4_show_ip_ospf.jpg

In the output above we can see SPF has been executed 9 times.

Question 4

Explanation

Area 2 (of R5) is a Not-so-Stubby area (NSSA). You can check it by the “show ip ospf” command on R4 or R5 (in Area 2 section). For example, below is the output of “show ip ospf” command on R5:

R5_show_ip_ospf.jpg

In general, NSSA is same as normal area except that it can generate LSA Type 7 (redistribute from another domain) so we can see both Loopback interfaces of R5 & R6 in the routing table of R5.

R5_show_ip_route.jpg

Note: NSSA does not receive a default route by default so you will not see a default route on R5.

Area 3 (of R6) is a Totally-Stubby area so R6 only has one default route to outside world. You can check with the “show ip ospf” command on R4 and R6 (area 3 section):

R4_show_ip_ospf_area3.jpg

R6_show_ip_ospf.jpg

Notice that on R4 you will get more detail (shows “stub area, no summary LSA”) than on R6 (only shows “stub area”).

R6 is in a totally-stubby area so we will not see any R5’s Loopback interfaces in R6 routing table:

R6_show_ip_route.jpg

Note: You can see a default (summary) route to the outside (O*IA 0.0.0.0/0 …)

Comments
Comment pages
1 2 3 11 1016
  1. GoGo
    February 10th, 2015

    Q1: Shouldn’t we look for type 4 LSA under section “Summary ASB Link States” ? Summary Net link is type 3

  2. Anwar
    February 12th, 2015

    i have Routing exam today. Is there any can tell me,if this OSPF Evaluation Lab is coming or NOT……

  3. Anwar
    February 12th, 2015

    Hi, guys…..

    I passed today 300-101. This OSPF Evaluation Lab does not came.

    All the questions are 100 % correct according to this VCE File. Following are the labs which came in my exams.

    1- EIGRP STUB
    2- OSPF STUB
    3- EIGRP OSPF REDISTRIBUTION
    4- POLICY BASED ROUTING
    5- IPV6 OSPF VIRTUAL-LINK

    And rest of the MCQs like piece of cake.

  4. Anonymous
    February 13th, 2015

    Hi,

    I’m thinking on taking my CCNP Route exam in to weeks or so. I would like to know where I can find all the material like questions, labs and things like that.

    Thank you

  5. qayyum
    February 13th, 2015

    can anyone share latest vce player

    thansk

  6. Anonymous
    February 15th, 2015

    pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee SEnd me the exam lab sims on my email nomansp2016@yahoo.com

  7. Muhammad
    February 19th, 2015

    @efe
    Please check your email. I already sent to you.

  8. odia festus
    February 19th, 2015

    pls someone help me with the ccnp route 300-101 PDF , lab sim and dump. pls send it to odiafestus1@yahoo.com thanks and God bless you

  9. ihsan
    February 19th, 2015

    are the above sim are the part of exam?????????????????

  10. fanx
    February 20th, 2015

    @Muhammad, can you also send me the pdf file. Thanks in advance! fanx04@yahoo.com

  11. Abdul Nasir
    February 21st, 2015

    Dear all ,
    need for your kindly help tomorrow i have CCNP 300-101 route exam need for exam sim please send me the link (waiting)

  12. Abdul Nasir
    February 21st, 2015
  13. ukm
    February 24th, 2015

    Q2
    Link on R1-R2 is Serial so from OSPF view it is a Point to Point Link with timers as 10,40,40
    Link on R2-R3 is Serial is made as NBMA so the timers are 30,120,120.

    B. The R2-R3 link OSPF timer values are 30, 120, 120
    C. The R1-R3 link OSPF timer values should be 10,40,40

    Shouldn’t both answers be correct!!

  14. ukm
    February 24th, 2015

    for
    Question 3
    How many times was SPF algorithm executed on R4 for Area 1?

    better command is ” sh ip ospf stat ”

    R4#sh ip ospf stat

    OSPF Router with ID (4.4.4.4) (Process ID 1)

    Area 0: SPF algorithm executed 6 times

    Area 1: SPF algorithm executed 9 times

  15. Question
    February 25th, 2015

    1- EIGRP STUB
    2- OSPF STUB
    3- EIGRP OSPF REDISTRIBUTION
    4- POLICY BASED ROUTING
    5- IPV6 OSPF VIRTUAL-LINK

    where are these on this website ? sorry for repeating. I wasn’t clear in my initial question. please help.

  16. digitaltut
    February 25th, 2015
  17. CCNP
    February 26th, 2015

    In OSPF Evaluation Sim on router 6 loopback address is missing on the config. Many thanks for this great web site.

  18. digitaltut
    February 27th, 2015

    @CCNP: Thanks for your detection. We have just updated it.

  19. lionel
    February 27th, 2015

    hello every one… please can i get a valid vce reader from any one here ?my exam is at the end of the month….. thanks. eemail me at nlt101kl213@yahoo.com
    thanks a lot.

  20. Shamsullah
    February 28th, 2015

    Asalamu Alaikum!
    Dear Friends Please Can someone send me CCNP Route Latest Dumps in PDF file.

    Thanks

    Regard’s
    Your Brother

  21. Shamsullah
    February 28th, 2015

    abdulsami787@ymail.com this my mail address

  22. Anonymous
    March 1st, 2015

    Please can any one send me the current 300-101 dumps for CCNP Route. I will appreciate it. Thanks in advance. rogasta@yahoo.com

  23. stack_pointer
    March 2nd, 2015

    For question 4 you can also use “show ip ospf statistics”.

  24. Sunil
    March 2nd, 2015

    there is a mistake in Question 2 as both links R1-R3 and R2-R3 are non-broadcast and therefore for both links, neighbor command must be applied

  25. digitaltut
    March 3rd, 2015

    @Sunil: Maybe the configuration of R1-R3 we listed here is not correct. The connection between R1 – R3 is “broadcast”. We will update it soon.

  26. Felix
    March 3rd, 2015

    Digitaltut.
    The LSA keeps changing. Is it always static in the exams ?

  27. Lawrence
    March 3rd, 2015

    Hi Muhammad and all.

    Can somebody please send me the questions for Cisco.Certkiller.300-101.v2015-01-02.by.Casey.82q.vce. If someone can point me to the right direction on how to view all of the questions, I’d be in your debt.

    Thank you very much.

    lawrenceg081990@yahoo.com

  28. lynxx
    March 3rd, 2015

    please i need study material . dumps, vce simulator, study material in pdf pleaaaase
    nlt101kl213@yahoo.com, thanks a million

  29. Awais
    March 4th, 2015

    Hi All, Just cleared my CCNP route exam 2 hours back with 1000/1000 marks. Every question was from digitual tut. Total 6 Labs ; Ipv6 ospf, OSPF Evaluation, Eigrp ospf Redistribution, PBR, Eigrp stub, OSPF sim. If anyone is going to take the exam, i would recommend to just study at digitultut and you will pass.

  30. wahoo
    March 4th, 2015

    Can someone send me sim on the below headings to ighodaroosagie@yahoo.com
    1- EIGRP STUB
    2- OSPF STUB
    3- EIGRP OSPF REDISTRIBUTION
    4- POLICY BASED ROUTING
    5- IPV6 OSPF VIRTUAL-LINK

    Thanks

  31. wahoo
    March 4th, 2015

    Pls i will need all materials needed to pass ccnp 300-101

  32. needhelp
    March 5th, 2015

    can someone please help…cant open this lab in gns3. What I am doing wrong?

  33. CL
    March 5th, 2015

    @Digitaltut:
    I tried to open the topology.net in your ROUTE_OSPF.zip with GNS3 0.7.4, but failed with a pop window “203-Bad number of parameters (1 with min/max=2/2)”. And, c3640-jk9s-mz.124-16.bin had been saved. Searched for clue, but not solved it. Is there anything I didn’t do?

  34. Nims
    March 5th, 2015

    For those who are looking for dumps PDFs or Vce. All files are found at the following link.
    http://www.mediafire.com/folder/9bmteb9f67uet#ki4a8te7vu1jc
    I was able to open Vce file on my old version of Vce player.
    Thanks to the guy who posted about media fire on one of the labsim.
    Good luck guys.

  35. digitaltut
    March 7th, 2015

    @CL: We used GNS3 v0.8.3 to create it so you should try this version of GNS3.

  36. ajay
    March 11th, 2015

    Dear 9tut , is 9$ subcription in available for route( 300-101 ) ,switch( 300-115 ) and
    t-shoot( 300-135 ) with lab solution

  37. sohail
    March 11th, 2015

    dear
    CCNP dumps Cisco.Certkiller.300-101.v2015-01-02.by.Casey.82q.vce still valid. I have my exam after two days.

    thanks

  38. Dereje
    March 12th, 2015

    Thank You!

  39. VAN-MALI
    March 12th, 2015

    Sohail @ALL THE QUESTIONS WERE IN 82 QUESTIONS?NOT EIGRP NOR BGP NOR OSPF IN LAST EXAM 642-902.

  40. JD
    March 12th, 2015

    Q2 above i got and answer was different could be due to some different timer was set, i choose c and scored 1000. So please check the timers before answering.

  41. Silent
    March 13th, 2015

    hi could someone help me and tell me those who just pass the exam for route for 300-101 is there any Labsim from 600series/old version came out from the exam or none? please help

  42. DsD
    March 13th, 2015

    I pass today with 967/1000
    Thanks Digitaltut!
    All the questions were in 82q.vce

    The ip of the ospf lab was 192.168.33.4! and area 8 ospf 21

  43. Chri
    March 13th, 2015

    Thanks for sharing DsD.

  44. Chri
    March 13th, 2015

    Thanks to you JD as well.

    Those are the comments we want to hear here.

  45. Chri
    March 13th, 2015

    Dsd.

    What was the Mask for 192.168.33.4 on area 8?.

  46. Chri
    March 13th, 2015

    *ip subnet mask.

  47. ap
    March 14th, 2015

    hello those who just pass the exam for route for 300-101, how many lab and 82q.vce are valid? there is any drag and drop?
    thank you very much..

  48. Sebakeng
    March 16th, 2015

    Guys please advice; is the answers to ospf evaluation sim and eigrp evaluation sim the same in all exams? Meaning if i see and memorize these answers here, will see exactly the same on the exam with no changes?? PLEASE ADVICE Good People!

  49. Chri
    March 16th, 2015

    What!!!!!!!!, Sebakeng.

    You should know what you are doing, you can’t just remember the answers.

    Am I bad People ?

  50. Bizzer
    March 16th, 2015

    …. and then Sebakeng? Do not be lazy dude. Learn the material and you will be a better engineer.

  51. JD
    March 16th, 2015

    @ap there are at least 4 to 5 labs with no drag n drop. 82q dumps are still valid. last thursday i wrote my exam.

  52. Sebakeng
    March 17th, 2015

    Yah I understand guys sometimes the time is just too little, Im good with the syllabus, done cbtnuggets “Jeremy Cioara” Am good with simulations it’s just that for my CCNP Switching exam which I passed last year July the simlet for EIGRP was all simillar that is why I ask whether it’s like that!

  53. Sebakeng
    March 17th, 2015

    @All and @Chri/Bizzer;
    Afterall guys most of us do memorize go write and pass, sounds wrong but works. It’s like football match you keep 80% possession and you don’t score then ur opponent scores 1 goal and all the time ellapses, who wins the match? Is it the team with 80% ball possession without a goal OR the team with 20% ball possession with 1 goal??
    WAS JUST MY THOUGHT OF VIEW!

  54. Sebakeng
    March 17th, 2015

    SO BACK TO MY QUESTION; SAME ANSWERS OR NOT? STRAIGHT AND DIRECT RESPONSE PLEASE. YES OR NO.

  55. Bizzer
    March 17th, 2015

    Sebakeng, there is no need for shouting. Mina what I think is that you should understand the NP material and then use this forum to practice and ask questions.

  56. Kashyap
    March 18th, 2015

    Pls share Latest dumps on desaikashyap99@yahoo.com, i want to pursue CCNP 300-101 Routing exam
    PLS….

  57. Yacin
    March 19th, 2015

    Thank you very much.

    Can anyone send me the pdf of 300-101 at yacin.siad@yahoo.fr ?

  58. Anatole
    March 19th, 2015

    Thank you

  59. DJ
    March 26th, 2015

    How old is the Type 4 LSA from Router 3 for area 1 on the router R5 based on the output you have examined?

    A. 1858
    B. 1601
    C. 600
    D. 1569

    Here my argument is you should check network 192.168.34.0 which is the only network in area 1 related to R3
    network 192.168.34.0 0.0.0.255 area 1

    Please comment guys..

  60. Sonik
    March 27th, 2015

    Nailed 300-101 today with a 990. 5 Labs Eigrp Simlet 53 Questions
    Eigrp OSpf redistribution asked for telnet and ping from loopback 101 but did not let the command function. Still got 990

  61. Arben
    March 28th, 2015

    Can somenone send me lab sims PLEASEEE??!!
    arben1292@yahoo.it

  62. Misho
    March 28th, 2015

    Can someone please send me the latest dumps for 300-101
    elkateb_fci@yahoo.com

  63. hasan zain
    March 28th, 2015

    All question from digital tut don’t look for any dumps

  64. Dan
    March 31st, 2015

    Can someone send me CCNP Route Latest Dumps in PDF file to my email diytoday@comcast.net

  65. Dream
    April 2nd, 2015

    So is this sim on the exam? Some people say sims are exact 5 on this site but then others say they are exact same as the VCE’s which contains this sim.

  66. Anonymous
    April 6th, 2015

    hi guys! please share the latest 300-101 dumps both in vce and pdf formats on email: ciscotocisco123@gmal.com , i would appreciate your help!

  67. GT
    April 8th, 2015

    Hello friends,

    In ROUTE 300-101 is included OSPFv3 and OSPFv3 with address-family
    for example
    R(config)# ipv6 unicast-routing
    R(config)# router ospfv3 1
    R(config-router)# address-family ipv6 unicast
    R(config-router-af)#

    R(config-router)# address-family ipv4 unicast
    R2(config-router-af)#

    Please help to deal with GNS3 -what IOS version is working on GNS3 with OSPFv3 AF ?

    Thank you for that OSPF Evaluation Sim example.Would ask about question 1:”How old is the Type 4 LSA …” Should be Type 3 LSA ? –we are referring to the summary LSA and we have not external routes in the example ?

  68. Fazal Rahim
    April 10th, 2015

    If any one need to open the 300-101 vce file then email me on fazalrahim166@gamil.com.

  69. Yannick
    April 10th, 2015

    I am trying the confgs on GNS3.
    Little problem. If you have “ip ospf network non-broadcast” between R1 and R3, OSPF will never work. So 1.1.1.1 will never be see in R5.
    So, the configs have to be changed if you want to be able to see 1.1.1.1 in R5.

  70. maestro
    April 10th, 2015

    Q2

    I don’t understand why Q2 is not true? Because of R1-R3 link Non-broadcast, when we implement neighbor command both on R1 and R3 neighbor adj will occur. Answer A should be correct?Am I worng?
    And I accept B is correct, as well.

  71. king
    April 11th, 2015

    Successfull with 967 points this friday April 10th….
    Dumps are correct….
    Just add #distance command in EIGRP/OSPF redistribution lab..

    R2#router eigrp 100
    R2#redistribute ospf 1 metric 100000 10 255 1 1500
    R2#distance eigrp 90 105

    note that “#copy running-config startup-config” does not work, it works only in one lab…So do not worry if you don’t copy your current configuration….

  72. Anonymous
    April 13th, 2015

    @DJ, review the questions again, I think you are correct, 192.168.34.0 0.0.0.255 is the only netwo5rk in area 1. But there is no answer matching that option.

    Did you get further comments?

  73. gilberto
    April 15th, 2015

    Can anyone send me the pdf of 300-101(free) at gilbertogiba28@yahoo.com.br

  74. Anonymous
    April 18th, 2015

    hi, please kindly also send me the latest dumps in pdf or vce file at artppe@yahoo.com thanks in advance :)

  75. jds
    April 18th, 2015

    hi team,
    i have downloaded ospf evalution sim & eigrp evalution sim, but not able to start the router.
    i am using GNS version 0.8.7
    please suggest

  76. speed
    April 18th, 2015

    hi digitaltut, is there a link that you can share where to download the old gns3 version (v0.8.3.1) I tried looking for it on the gns3 site but I was not able to find one ( or did not search enough :)) thanks

  77. speed
    April 18th, 2015

    just found one. thanks :)

  78. GNS 3
    April 18th, 2015

    I created this LAB in the latest gns3 version…. Everything is running.

    IOS c7200 – Version 15.1(4)M4
    GNS3 Version – GNS3 1.3.0

    Thanks for the explanation.

  79. solid
    April 20th, 2015

    are the show command part of the answers , can you just chose the correct choices to get full mark or show command still need to be performed ?

  80. Lucy
    April 21st, 2015

    @GNS3
    Could you please upload or attached the latest lab that u created on :

    [I created this LAB in the latest gns3 version…. Everything is running.
    IOS c7200 – Version 15.1(4)M4
    GNS3 Version – GNS3 1.3.0 ]

  81. hassan
    April 23rd, 2015

    how can we download labs of CCNP Route v.02

  82. CCNP2be
    April 24th, 2015

    Did anybody get any BGP questions on the exam, either SIMs or any other type of BGP question?

  83. Anonymous
    April 24th, 2015

    Can anyone tell me why is question 2 answer is B and not A ???

  84. Prezes
    April 26th, 2015

    @Anonymous,
    I’m not sure, but the question ask about SERIAL links and its configuration of fact about them. Static neighborship is not defined in interface configuration.

  85. Mr. Duk
    April 27th, 2015

    @ Anonymous April 24th, 2015

    >>> Can anyone tell me why is question 2 answer is B and not A ???

    – Firstly, is for sure B as you can see with the #show ip opsf interface se1/0 command

    – Is not A, because that answer is only partially correct. If you type the #neighbor command on R1, the adjacency will never come up as you need to type it as well on R3

    Hope it helps, good luck to all you guys!!

  86. HiTmAn47
    April 28th, 2015

    Hello ,
    If I memorized the answers and didn’t use the commands that gets the answer , they will deduce marks or they only check the final answer choice ?

  87. Mr. Duk
    April 28th, 2015

    @HiTmAn47

    Probably the labs won’t have the exact same results or IPs, so if I were you I would learn how it really works.

  88. HiTmAn47
    April 28th, 2015

    Thx Mr Duk ,
    I know now how to get each result myself ,
    my exam is today …. wish me luck

  89. Anonymous
    April 29th, 2015

    I pass my exam thanks to therout dumpss

    http://tinyurl.com/okr6sy4 all material and tips available

  90. thehk
    May 1st, 2015

    Thank for lab sim and great explanation for each question. I am preparing for ccnp exam.

  91. yasir
    May 3rd, 2015

    Please send the latest dumps CCNP Route to my email id yazvkd@gmal.com

  92. sswj
    May 6th, 2015

    Just passed CCNP Route 300-101 today, and this question came out the first on me!
    Thanks a lot digitaltut.com and other fellow’s comment. Everything you need is here in this site.

  93. Alex
    May 6th, 2015

    Question 2

    Which of the following statements is true about the serial links that terminate in R3?

    A. The R1-R3 link needs the neighbor command for the adjacency to stay up
    B. The R2-R3 link OSPF timer values are 30, 120, 120

    Both answers are correct , R1-R3 Network type is NON_BROADCAST So network command must be used.
    And B is correct Because that the timers that in use in OSPF NON_BROADCAST network.

    Is there an error in the Lab Sim?

  94. Anonymous
    May 7th, 2015

    A. The R1-R3 link needs the neighbor command for the adjacency to stay up
    IT IS WRONG………….WHY?

    WELL IT IS EASY… IF YOU TAKE A CLOSER LOOK AT THE QUESTION IT SAY “….to stay up” this suggests that the adjacency is already formed. NO the adjacency is not formed.

    For the question to be correct it should have been

    A. The R1-R3 link needs the neighbor command for the adjacency to form

  95. Rajat
    May 8th, 2015

    Cisco.Certkiller.300-101.v2015-01-02.by.Casey.82q is still valid…please confirm i have exam on monday…

  96. Anonymous
    May 9th, 2015

    when i type sh ip ospf database command, nothing comes up. It goes back to the exec mode prompt, with no output.

  97. Anonymous
    May 9th, 2015

    How come no one has made this simulator in packet tracer? Will it not work?

  98. Cross
    May 13th, 2015

    Anonymous,

    “For the question to be correct it should have been
    A. The R1-R3 link needs the neighbor command for the adjacency to form”

    But if you remove the neighbor command, the adjacency won’t stay up right?

    My way of interpreting that A is wrong is because the neighbor command only needs to be configured on one end of the link whereas A implies that it is needed on both ends.

  99. Steve
    May 13th, 2015

    the sim doesnt work on any version of GNS3 !

  100. Alex
    May 14th, 2015

    “Anonymous” and “Cross”
    Thanks for your response i didn’t note this little change :)

    “Steve” – It works fine to me with the latest gns3 with the required Io’s.

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