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EIGRP Troubleshooting Sim

October 7th, 2014 Go to comments

Question

The topology below is running EIGRP. You are required to troubleshoot and resolve the EIGRP issues between the various routers. Use the appropriate show commands to troubleshoot the issues.

EIGRP_Troubleshooting_Sim_2.jpg

Instead of posting the output of “show run” commands we post here the commands entered on each router to reduce some useless lines. Also you can try solving questions by yourself before reading the answers.

R1:
int lo0
ip address 10.1.1.1 255.255.255.255
int e0/0
ip address 192.168.16.1 255.255.255.0
int s1/1
ip address 192.168.13.1 255.255.255.0
bandwidth 1000
int s1/3
ip address 192.168.12.1 255.255.255.0
!
router eigrp 1
network 192.168.12.0
network 192.168.13.0
network 192.168.16.0
R2:
int lo0
ip address 10.2.2.2 255.255.255.255
int e0/0
ip address 192.168.123.2 255.255.255.0
int s2/1
ip address 192.168.12.2 255.255.255.0
!
router eigrp 1
network 10.2.2.2 0.0.0.0
network 192.168.12.0
network 192.168.123.0
R3:
int lo0
ip address 10.3.3.3 255.255.255.255
int e0/0
ip address 192.168.123.3 255.255.255.0
int s2/1
ip address 192.168.13.3 255.255.255.0
!
router eigrp 1
network 10.3.3.3 0.0.0.0
network 192.168.13.0
network 192.168.123.0
R4:
int lo0
ip address 10.4.4.4 255.255.255.255
int lo1
ip address 10.4.4.5 255.255.255.255
int lo2
ip address 10.4.4.6 255.255.255.255
int e0/0
ip address 192.168.123.4 255.255.255.0
!
router eigrp 2
network 10.4.4.4 0.0.0.0
network 10.4.4.5 0.0.0.0
network 10.4.4.6 0.0.0.0
network 192.168.123.0
R5:
int lo0
ip address 10.5.5.5 255.255.255.255
int lo1
ip address 10.5.5.55 255.255.255.255
int e0/0
ip address 192.168.123.5 255.255.255.0
!
router eigrp 1
network 10.5.5.5 0.0.0.0
network 10.5.5.55 0.0.0.0
network 10.10.10.0 0.0.0.255
network 192.168.123.0
R6:
int lo0
ip address 10.6.6.6 255.255.255.255
int e0/0
ip address 192.168.16.6 255.255.255.0
!
router eigrp 1
network 10.6.6.6 0.0.0.0

Note: In the exam, this sim uses IOS version 15 so “no auto-summary” is the default setting of EIGRP. You don’t have to type it.

You can download the pkt file to practice here: http://www.9tut.com/download/9tut.com_CCNA_EIGRP_Troubleshooting_Sim.zip

Question 1

Explanation

On R4 we see EIGRP is configured with AS 2 (router eigrp 2) while other routers are using AS 1 (router eigrp 1). Therefore R4 cannot see other routers and vice versa.

Note: There is another version of this question but the answer is D (as R4 misses the “network 10.4.4.4 0.0.0.0”, “network 10.4.4.5 0.0.0.0” and “network 10.4.4.6 0.0.0.0” statements).

Question 2

Explanation

For this question we have to check the routing table of R1 to find out the answer. Use the “show ip route” command on R1 we will get something like this:

ccna_EIGRP_Troubleshooting_sim_R1_show_ip_route.jpg

There are three interfaces on R5 which are Loopback0: 10.5.5.5 ; Loopback1: 10.5.5.55; Ethernet0/0: 192.168.123.5 and all of them are advertised via 192.168.12.2 so we can conclude traffic from R1 to R5 goes through R2 (192.168.12.2 is the IP address of S2/1 interface of R2).

Note: Maybe there is another version of this question in the exam in which the answer should be “The traffic is equally load-balanced over R2 and R3”. Therefore please check the “show ip route” output carefully to see if there are more than one route to the destination.

Question 3

Explanation

From the configuration of R6 we learn that R6 is missing “network 192.168.16.0” command (the network between R1 & R6) under EIGRP so EIGRP neighbor relationship will not be formed between them.

Note: Please check the configuration of R6 carefully. If the “network 192.168.16.0” is not missing on R6 but the “metric weights” is configured like this:

R6:
router eigrp  1
 network 10.6.6.6 0.0.0.0
 network 192.168.16.0
 metric weights 0 0 0 1 1 1

Then you should check if R1 has the same “metric weights” or not. If not then the answer should be “K values are mismatched”.

For your information, EIGRP K values are the scale numbers that EIGRP uses in metric calculation . Mismatched K values can prevent neighbor relationships from being established. The syntax of “metric weights” command is:

metric weights tos k1 k2 k3 k4 k5 (with tos is the type of service and must always be zero)

Question 4

Explanation

R1 does not advertise its loopback 0 (10.1.1.1) to EIGRP therefore a ping to destination 10.5.5.55 (R5) from 10.1.1.1 will not be successful because R5 does not know how to reply to R1.

Comments (21) Comments
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  1. TN
    April 11th, 2017

    EIGRP SIM has changed . please share new one.

  2. Anonymous
    April 13th, 2017

    Are you sure? Nt

  3. Everette Knapko
    April 15th, 2017

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  4. ali
    April 17th, 2017

    please any one have latest ccna 200-125 dumps.. i need it.. i am going to take exam next week..
    asgharshahhashmi @ gmail . com (remove space)

  5. Asad
    April 17th, 2017

    mail me latest EIGRP lab or Dumps
    as*adsumm022@gm*ail.c*om
    Remove *

  6. nina
    April 18th, 2017

    please share the EIGRP Lab and the lust valid dump PLZ, PLZ , PLZ it’s very urgent , i’m taking the exam this thursday

  7. Anonymous
    April 19th, 2017

    Please can some one send me the latest dump for ccna 200-125 .
    i am planning to write my exam next week
    josifaz474 at yahoo * com

  8. Abdelrhmanmax8@gmail.com
    April 19th, 2017

    this is a new one

    QUESTION 1
    The loopback interfaces on R4 with the IP addresses of 10.4.4.4/32, 10.4.4.5/32 and 10.4.4.6/32 are not appearing in the routing table of R5. Why are the interfaces missing?
    A. The interfaces are shutdown, so they are not being advertised.
    B. R4 has been incorrectly configured to be in another AS, so it does not peer with R5
    C. Automatic summarization is enabled, so only the 10.0.0.0 network is displayed.
    D. The loopback addresses haven’t been advertised, and the network command is missing on R4
    Answer: D
    QUESTION 2
    Which path does traffic take from R1 to R5?
    A. The traffic goes through R2.
    B. The traffic goes through R3
    C. The traffic is equally load-balanced over R2 and R3
    D. The traffic is unequally load-balanced over R2 and R3.
    Answer: C
    QUESTION 3
    Router R6 does not form an EIGRP neighbor relationship correctly with router R1.
    What is the cause for this misconfiguration?
    A. The K values mismatch
    B. The AS does not match.
    C. The network command is missing.
    D. The passive-interface command is enabled.
    Answer: A
    QUESTION 4
    Study the following output taken on R1:
    R1#ping 10.5.5.55 source 10.1.1.1
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 10.5.5.55, timeout is 2 seconds:
    Packet sent with a source address of 10.1.1.1
    . . . . .
    Success rate is 0 percent (0/5)
    Why are the pings failing?
    A. The network statement is missing on R5
    B. The loopback interface is shut down on R5 .
    C. The network statement is missing on R1 .
    D. The IP address that is configured on the Lo1 interface on R5 is incorrect .
    Answer: A

  9. Haran03
    April 20th, 2017

    Hello Guys,

    Have successfully completed my CCNA with 924 points. The 266q dump is valid. Hurry up, mates.

  10. SXI
    April 20th, 2017

    hay guys i have ccna exam today are there any updates kindly inform me.
    How many simlets are comming in exam and do e actually have to do the config in simlets or just point out the problems in config

  11. SXI
    April 20th, 2017

    kindly help i have exam in 6 hour

  12. Gigi
    April 23rd, 2017

    will the 266 dumps still be valid next week?

  13. falcon
    April 24th, 2017

    i have exam in 2 hour later
    after this i will share the result and dump valid
    wish me luck

  14. Mam
    April 24th, 2017

    Hello guys,
    i will take my exam next week.
    Please send me last dumps and labs.
    I nedd your support

  15. T
    April 24th, 2017

    Hello all,Please send me the latest dump “266q” on {email not allowed}

  16. semo
    April 24th, 2017

    Hello all,Please send me the latest dump “266q” at managershkov(at)gmail.com

  17. lisa.sweeheat.ccna@gmail.com
    April 24th, 2017

    Hi guys pls send the updated questions 266q pretty plz…
    To lisa.sweeheart.ccna (at) gmail.com

  18. BIGBEAR
    April 24th, 2017

    Hello all,Please send me the latest dump “266q” at rngeanmongkoln @ gmail.com

  19. SONY
    April 24th, 2017

    falcon – passed?

  20. Sulabh
    April 24th, 2017

    Hi can someone confirm the eigrp lab answers?

  21. Qusay
    April 25th, 2017

    Hi,
    Can you add the questions plz

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