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IPv6 OSPF Sim

September 14th, 2017 Go to comments

Question

All routers are running IPv6 OSPF with process ID 100. The loopback0 IPv4 address is the OSPF router ID of each router.

On HQ router, a provider link is provided and you have to configure an IPv6 default route on HQ and make sure this route is advertised in IPv6 OSPF process. Also troubleshoot why HQ is not forming IPv6 OSPF neighbor with BR.

Requirements:

1. Configure IPv6 default route on HQ router with default gateway of 2001:DB8:B:B1B2::1
2. Verify by pinging provider test IPv6 address 2001:DB8:0:1111::1 after configuring default route on HQ
3. Make sure that the default route is advertised in IPv6 OSPF router HQ. This default route should be advertised only when HQ has a default route in its routing table
4. Router HQ is not forming IPv6 OSPF neighbor with BR. Troubleshoot and solve the problem

Special Note: To gain the maximum number of points, you must complete the necessary configurations and fix IPv6 OSPF neighbor issue with router BR. IPv6 OSPFv3 must be configured without using address families. Do not change the IPv6 OSPF process ID.

IPv6_OSPF_Topology.jpg

Solution

1. Configure IPv6 default route on HQ router with default gateway of 2001:DB8:B:B1B2::1:

HQ(config)#ipv6 unicast-routing
HQ(config)#ipv6 route ::/0 2001:DB8:B:B1B2::1

First we have to enable IPv6 routing with the “ipv6 unicast-routing” command then we configure a default route on HQ router.

2. Verify by pinging provider test IPv6 address 2001:DB8:0:1111::1 after configuring default route on HQ:

HQ#ping ipv6 2001:DB8:0:1111::1

Issue the ping test to see if the default route works. The ping must be successful.

3. Make sure that the default route is advertised in IPv6 OSPF router HQ. This default route should be advertised only when HQ has a default route in its routing table:

HQ(config)# ipv6 router ospf 100
HQ(config-rtr)#default-information originate

The command “default-information originate” will generate a default route and send to all other routers in the OSPF domain, provided that the local router has a default route configured.

4. Router HQ is not forming IPv6 OSPF neighbor with BR. Troubleshoot and solve the problem

Maybe interface S1/0 of HQ was not enabled with IPv6 OSPF (verify by the “show run” or “show ipv6 ospf interface” command) so we have to enable it.

HQ(config)#interface s1/0
HQ(config-if)#ipv6 ospf 100 area 0

After configuration use the “show ipv6 ospf neighbor” on HQ to see if BR is listed in the output.

Comments (24) Comments
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  1. Nos of simulation questions and total sub question in them
    February 10th, 2018

    Can anyone tell me number of simulation questions they have asked and how many of them are for configuring and how many of them for troubleshooting. Also can you please let me know total number of questions you people got in exam and number of sub-questions under each simulation question and troubleshooting question suing show commands ?

    M going to write on 14th feb so please if anyone could let me know exact number of sim questions as earlier they used to ask 2 to 3 simulations only and there used to be 2 to 3 sub questions in that. so its kind of confusing when other people have told that they got 8simulation questions.

  2. help
    February 14th, 2018

    where can i find sims that will be on the ICND 1?

  3. NBA
    February 15th, 2018

    @Nos of simulation questions and total sub question in them—– How was the exam? no of simulation you received for config,and for troubleshooting??? Ans on which points??

  4. EMMY
    February 15th, 2018

    I never knew a site like this is available. I am so much in love with this site.

  5. Bouya
    February 22nd, 2018

    beware guys. i’ve passed my exam today. there are new question for multiple question and drag&drop. the simlets and labs are the old ones. i used 1.23v as a reviewer

  6. MM
    February 26th, 2018

    Hi i’ve passed the exam new questions and new drag and drop, labs almost the same from 9tut

  7. Kumar
    February 28th, 2018

    I am trying to perform this lab on packet tracer, can anyone tell me which cable is connected b/w ospf areas, i am failing to connect serial

  8. Mona
    March 7th, 2018

    Which statement about spanning-tree root-bridge election is true?

    A. It is always performed automatically
    B. Each VLAN must have its own root bridge
    C. Each VLAN must use the same root bridge
    D. Each root bridge must reside on the same root switch

  9. milos
    March 10th, 2018

    @mona the correct answer is A

  10. N/A
    March 11th, 2018

    Thank you so much for this site i t hel me a lot of achieve my CCNA cert

  11. Merkel
    March 12th, 2018

    You can not PASS!!!!

  12. @Mona
    March 15th, 2018

    the Annswer is B i think.

  13. ethan
    March 19th, 2018

    Passed CCNA today.

    Got few news questions . The one that i remembered are as below :

    1. https://www.google.com/search?q=verify+nic+operation+drag+and+drop&tbm=isch&source=lnms&sa=X&ved=0ahUKEwjuvqyzwfjZAhXMrY8KHXLjDU8Q_AUICygC&biw=1910&bih=878&dpr=1#imgrc=5yEAMOSR63Hp8M:

    2. It will asked why choose chassis aggregation instead of stacking switches .

    3. I got 2 LAB ( ACL + IPV6 OSPF )

    4. Multiples choice from LAB ( GRE + EIGRP + OSPF ) — Please take note the answer is not the same anymore because they have tweak all the questions with different scenarios. Please make sure you understand how to use all the output commands to get the answers .

  14. Mustafa
    March 19th, 2018

    @ethan
    congrats .. ACL and IPV6 laps are the same as here?

  15. Nawras
    March 19th, 2018

    Passed today :)

    this lap included with same AS and area + ACL sim

  16. milos
    March 20th, 2018

    @mona, sorry , i chacked it now on cisco site, the correct answer is B

  17. ethan
    March 21st, 2018

    Hi Mustafa,

    You are right. Both ACL and IPV6 are exactly same from 9tut.

  18. umer
    March 27th, 2018

    Any have the lab for this one?

  19. Anonymous
    March 28th, 2018

    This lab was in my exam. EXAM DATE 3/17/2018

  20. OSI Model
    April 9th, 2018

    @9Tut: Do you have the packet tracer package for the above scenario? it will be good if we can practice ourselves rather then getting confused and wasting time on your dummy toys.

  21. THIS IS THE WORDING FOR THIS QUESTION
    April 14th, 2018

    You work as a network engineer for SASCOM Network Ltd company. On router HQ, a provider link has
    been enabled and you must configure an IPv6 default route on HQ and make sure that this route is
    advertised in IPv6 OSPF process. Also, you must troubleshoot another issue. The router HQ is not forming
    an IPv6 OSPF neighbor relationship with router BR.
    Topology Details
    Two routers HQ and BR are connected via serial links.
    Router HQ has interface Ethernet0/1 connected to the provider cloud and interface Ethernet 0/0 connected
    to RA1
    Router BR has interface Ethernet 0/0 connected to another router RA2.
    IPv6 Routing Details
    Ail routers are running IPv6 OSPF routing with process ID number 100 Refer to the topology diagram for
    information about the OSPF areas The Loopback 0 IPv4 address is the OSPF router ID on each router
    Configuration requirements
    • Configure IPv6 default route on router HQ with default gateway as 2001:DB8:B:B1B2::1.
    • Verify by pinging provider test IPv6 address 2001 :DB8:0:1111:1 after configuring default route on HQ.
    • Make sure that the default route is advertised in IPv6 OSPF on router HQ This default route should be
    advertised only when HQ has a default route in its routing table.
    • Router HQ is not forming IPv6 OSPF neighbor with BR. You must troubleshoot and resolve this issue
    Special Note: To gain the maximum number of points, you must complete the necessary
    configurations and fix IPv6 OSPF neighbor issue with router BR IPv6 OSPFv3 must be
    configured without using address families. Do not change the IPv6 OSPF process ID.

  22. QK
    April 19th, 2018

    I have just passed the exam today with 940, i got this lab IPV6 OSPF Sim, as well as ACL, EIGRP, OSPF, and D&D about four Questions. I got many question that i have not seen here, but i made it. I would like to say. not all sims questions are the same as we learned here, but if you understand how to troubleshooting with show command, u will be fine. GOOD LUCK GUYS IN YOUR EXAM

  23. MatejJens
    April 20th, 2018

    can anyone tell me why the first command in question 1 is “ipv6 unicast-routing” when show run command for HQ router states that ipv6 unicast-routing is already enabled?

  24. TIWARI
    April 22nd, 2018

    Hi everyone,
    could anyone help please?
    In the answers to this sim we have got 7 lines while in the test engine there are 6.
    7 line can fit in 6.
    Thank you kindly

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