Home > Ticket 12 – IPv6 OSPF

Ticket 12 – IPv6 OSPF

April 25th, 2018 in TSHOOT v2 Go to comments

DSW1 & R4 can’t ping R2’s loopback interface or s0/0/0.12 IPv6 address.
R2 is not an OSPFv3 neighbor on R3
Situation: ipv6 ospf was not enabled on R2’s serial interface connecting to R3. (use ipv6 Layer 3)

Configuration of R2
ipv6 router ospf 6
!
interface s0/0/0.23
 ipv6 address 2026::1:1/122

Configuration of R3
 ipv6 router ospf 6
 router-id 3.3.3.3
!
interface s0/0/0.23
 ipv6 address 2026::1:2/122
 ipv6 ospf 6 area 0

Answer:

In interface configuration mode of s0/0/0.23 on R2:
ipv6 ospf 6 area 12

Ans1) R2
Ans2) IPv6 OSPF Routing
Ans3) Under the interface Serial 0/0/0.23 configuration enter the ‘ipv6 ospf 6 area 0’ command. (notice that it is “area 0”, not “area 12”)

Bug in this ticket: There is a bug in this ticket in the exam that under interface s0/0/0.23 the IPv6 address is /123, not /122 but this is not the fault of this ticket so be careful. Also there is no option about “change /123 to /122”.

Comments (18) Comments
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  1. Anonymous
    November 22nd, 2018

    @Wolverine im talking about this sim

  2. @justheretohelp
    January 15th, 2019

    OSPFv3 uses LL addresses to form neighbor adjacency so having a different subnet mask is not an issue, so don’t let that confuse you.

  3. Anonymous
    March 26th, 2019

    Had this on the exam, I got it wrong.

    It’s important to note, all the devices can ping R1 but R1 can’t ping out. That’s the give away for this ticket. It’s because R2 is advertising it’s connected prefix (the R1 address), so everyone can see a path to it. But because R1 is not receiving any ipv6 routes, it only know how to ping R2.

  4. fail
    May 21st, 2019

    In my exam on interface s0/0/0.23 already was ipv6 ospf 6 area 0’

  5. Doug Funny
    June 5th, 2019

    I cant ping IPv6 On lab, i’ve tried with:
    ping 2026::12:2
    and
    ping Ipv6 2026::12:2

    And I have problems in use “:” => currently we don’t support “command?” form (without space).

    But when i copied the command from a “notepad”, I pasted in router CLI Works!

    Im doing something wrong?

  6. Doug Funny
    June 5th, 2019

    I cant ping IPv6 On lab, i’ve tried with:
    ping 2026::12:2
    and
    ping Ipv6 2026::12:2

    And I have problems in use “:” => currently we don’t support “command?” form (without space).

    But when i copied the command from a “notepad” and pasted in router CLI Works!

    Im doing something wrong?

  7. Tshoothelp
    June 13th, 2019

    @ALL ping ipv6 work in the exam ?

  8. anonymous
    June 19th, 2019

    @fail I also had s0/0/0.23 being ipv6 ospf 6 area 0 does anyone know what the actual answer is to this question when it is alrady set

  9. Anonymous
    June 21st, 2019

    fail today, same issue as above came on the exam, you can’t ping 2026::1:2 from R1!! I had this two times. One was OK, but when the same issue occured againg I got confused, and find it hard to pin point to the problem, which I assumed is a Router 4 Problem, as I can’t skip the ticket with at least trying an answer. The answer I gave was based on the fact that R4 did not have RIP redistributed on IPv6 OSPF, this is the only clue I got get my hands on!

  10. Anonymous
    June 24th, 2019

    best thing do to is show ipv6 route on R1, R2, and R3. If you see the learned routes from R4 RIP redistribution

    Also do a show ipv6 ospf neighbor on R1, 2, 3 and 4 and see if there is an ospf neighbor relationship between them.

  11. ipv6 ticket bug
    June 30th, 2019

    I passed today, I had the same issue on the ipv6 ticket the the answer is Ticket 16 – IPv6 RIPng OSPFv3 Redistribution

  12. TE
    July 14th, 2019

    I failed today because of this ticket. It repeated itself in the exam.

  13. Bobo
    July 19th, 2019

    I had this question in the exam a few days ago, seems that there are two versions :

    question version1 :

    on interface s0/0/0.23 there was already “ipv6 ospf 6 area 0” configured, ping from R1 to 2026::12:2 was ok, but ping from R1 to 2026::1:1 and 2026::2 failed.

    question version2 : on interface s0/0/0.23 the “ipv6 ospf 6 area 0” was missing.

    A probably failed question version 1: has anyone an idea?

  14. Bobo
    July 22nd, 2019

    seems that the question version2 was question 16 (IPv6 RIPng OSPFv3 Redistribution) including a ping-bug.

  15. Bobo
    July 22nd, 2019

    i meant that question version1 (not 2) was question 16 (IPv6 RIPng OSPFv3 Redistribution) including a ping-bug.

  16. Peeved
    July 31st, 2019

    @Bobo I ran into the same issue today only thing I noticed was the message-digest (Ticket 1) was on R1 and not R2. I understood that it was for IPv4 but that was the only thing I could find wrong. Failed the test not saying 100% because of this ticket but I’m sure it added to it.

  17. crudo
    September 13th, 2019

    Recently met this ticket in real exam, but in configuration on R2 everything was OK
    interface s0/0/0.23
    ipv6 address 2026::1:1/122
    ipv6 ospf 6 area 0
    . I chose an answers for this ticket and it worked.

  18. Ziggi
    September 17th, 2019

    Crudo, What answer did you choose?

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