Home > RIPv2 Troubleshooting Sim

RIPv2 Troubleshooting Sim

October 16th, 2016 Go to comments

Refer to the topology below and answer the questions using “show” commands.

Question 1

Server1 and Server2 are unable to communicate with the rest of the network. Your initial check with system administrators shows that IP address settings are correctly configured on the server side. What could be an issue?

A. The VLAN encapsulation is misconfigured on the router subinterfaces.
B. The Router is missing subinterface configuration.
C. The Trunk is not configured on the L2SW1 switch.
D. The IP address is misconfigured on the primary router interface.


Answer: A


Check the configuration of the interface that is connected to Server1 and Server2 on R2 with “show running-config” command.

We see that subinterface E0/1.100 has been configured with VLAN 200 (via “encapsulation dot1Q 200” command) while Server1 belongs to VLAN 100. Therefore this configuration is not correct. It should be “encapsulation dot1Q 100” instead. The same thing for interface E0/1.200, it should be “encapsulation dot1Q 200” instead.

Question 2

Users in the main office complain that they are unable to reach internet sites. You observe that internet traffic that is destined towards ISP router is not forwarded correctly on Router R1. What could be an issue?

Ping to Internet server shows the following results from R1:

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to, timeout is 2 seconds:
Success rate is 0 percent (0/5)

A. The next hop router address for the default route is incorrectly configured.
B. Default route pointing to ISP router is not configured on Router R1.
C. Default route pointing to ISP router is configured with AD of 225.
D. Router R1 configured as DHCP client is not receiving default route via DHCP from ISP router.


Answer: B


When all the users cannot reach internet sites we should check on the router connecting to the ISP to see if it has a default route pointing to the ISP or not. Use the “show ip route” command on R1:

We cannot find a default route on R1 (something like this: S* [1/0] via so maybe R1 was not configured with a default route. We can check with the “show running-config” on R1:

We need a default route (like “ip route”) but we cannot find here so we can conclude R1 was not be configured with a default route pointing to the ISP router.

Question 3

Examine R2 configuration, the traffic that is destined to R3 LAN network sourced from Router R2 is forwarded to R1 instead R3. What could be an issue?

R2#traceroute source
Type escape sequence to abort.
Tracing the route to
VRF info: (vrf in name/id, vrf out name/id)
1 0 msec 1 msec 0 msec
2 !H !H *


A. RIPv2 enabled on R3, but R3 LAN network that is not advertised into RIPv2 domain.
B. RIPv2 routing updates are suppressed between R2 and R3 using passive interface feature.
C. RIPv2 not enabled on R3.
D. No issue that is identified; this behavior is normal since default route propagated into RIPv2 domain by Router R1.


Answer: C


First we should check the routing table of R2 with the “show ip route” command.

In this table we cannot find the subnet “” (R3 LAN network) so R2 will use the default route advertised from R1 (with the command “default-information originate” on R1) to reach unknown destination, in this case subnet -> R2 will send traffic to to R1.

Next we need to find out why R3 did not advertise this subnet to R2. A quick check with the “show running-config” on R3 we will see that R3 was not configured with RIP ( no “router rip” section). Therefore we can conclude RIPv2 was not enabled on R3.

Question 4

What is the correct statement below after examining the R1 routing table?

A. Traffic that is destined to from R1 LAN network uses static route instead RIPv2 because the static route AD that is configured is less than the AD of RIPv2
B. Traffic that is destined to from R1 LAN network uses RIPv2 instead of static route because the static route AD that is configured is higher than the AD of RIPv2
C. Traffic that is destined to from R1 LAN network uses static route instead of RIPv2 but the traffic is forwarded to the ISP instead of the internal network
D. Traffic that is destined to from R1 LAN network uses RIPv2 instead of static route because the static route AD that is configured is 255


Answer: B


Surely we have to use the “show ip route” command to check the R1 routing table.

As we see here, 10.10.10/24 is learned from RIP. Notice that although there is a static route on R1 to this destination (you can check with the “show running-config” on R1 to see the line “ip route 200”), this static route is not installed to the routing table because it is not the best path because the Administrative Distance (AD) of this static route is 200 while the AD of RIP is 120 -> R1 chose the path with lowest AD so it chose path advertised via RIP.

Comments (24) Comments
Comment pages
1 11 12 13 2853
  1. Ali
    April 12th, 2018

    I got exam for this lab

  2. @Ali
    April 14th, 2018

    could u plz share the dumps to me .what was the questions u got in the exam.i am panning to take exam this month end.kindly pass on to my email {email not allowed}

  3. @Ali
    April 14th, 2018

    could u plz share the dumps to me .what was the questions u got in the exam.i am panning to take exam this month end.kindly pass on to my email shafiuddinh(at)gmail(dot)com

  4. Sinix
    April 24th, 2018

    Is there a .pkt file for this sim?

  5. Marco
    May 2nd, 2018

    good lab example, many thanks!

  6. Anonymous
    May 3rd, 2018

    Can anyone send me the latest CCNA dump please?
    My email address is samra138 @ yahoo . com
    Thanks for helping :)

  7. Anonymous
    May 6th, 2018

    could you please share the dumps to me.
    What was the questions you got in the exam. i am planning to take exam this month end.
    kindly pass on to my email {email not allowed}

  8. Anonymous
    May 6th, 2018

    could you please share the dumps to me.
    What was the questions you got in the exam. i am planning to take exam this month end.
    kindly pass on to my email granferchu(at)yahoo(dot)com(dot)ar

  9. umer
    May 7th, 2018

    Pass my CCNA Exam this sim was in exam but questions are bit different

  10. Ankur
    May 7th, 2018

    How come is que 4’s answer is B? and how come in the explanation it say Static route have greater AD than RIP??? Static route has AD of 1 right?? so why it says 200??

  11. Ankur
    May 7th, 2018

    @Umer the sims here are good enough for the exam???

  12. umer
    May 8th, 2018

    @Ankur Sim is good. I got the same in the exam. I will suggest to understand the logic not memorizing.
    for example ping is not working why is not working?
    Ping is working why is working?

  13. botocador
    May 10th, 2018

    @Ankur, the answer is in the sh run command
    when the static route was entered, they add the number 200 at the end which means the AD is set to 200. 200 is not part of the IP address

  14. Ankur
    May 11th, 2018

    @botocador, oh sorry my bad, i just saw the run config again, thanks a lot mate, are u planning to take exam? or you already done with it? Is there some other suggestions for the exam ? i am taking it on monday.

  15. Ankur
    May 11th, 2018

    @umer Thanks Umer

  16. Niggarachi
    May 16th, 2018

    Is there a premium version for CCENT/ICND1 ?

  17. Sinix
    May 28th, 2018

    Fellas, I can´t find the file sim to practice, could someone point it out, pls? There is no hint to its location. It´s not in F.A.Q. list.

  18. Anonymous
    May 29th, 2018

    how many labs are coming exam.

  19. Abdisalan
    May 29th, 2018

    Normally what types of labs exam consist?

  20. Luis
    June 2nd, 2018

    I had my exame today and I fail but this one was there.

  21. Lily
    June 3rd, 2018

    @Luis, Was it exactly like this or there were some changes?

    Im scared mine is on friday

  22. Anonymous
    June 8th, 2018

    jjggf buuu

  23. Ngo Ngoc Luu
    June 15th, 2018

    Hi everyone,

    Please share the latest dump 200-125, my mail ngongocluuuct@ gmail com


  24. Sinix
    June 19th, 2018

    Guys, there is no way to input “show” command, there is no file sim, or other material source? How can I consult the devices??

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