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CCNA Configuration SIM Question

January 10th, 2014 Go to comments

Question:

To configure the router (R2-RC) click on the console host icon that is connected to a router by a serial console cable (shown in the diagram as a dashed black line)

ccna__configuration_sim_lab_4

CCNA Training Company recently installed a new router in their office. Complete the network installation by performing the initial router configurations and configuring RIPV2 routing using the router command line interface (CLI) on the R2-RC.

Name of the router is R2-RC
Enable-secret password is cisco1
The password to access user EXEC mode using the console is cisco2
The password to allow telnet access to the router is cisco3
IPV4 addresses must be configured as follows:
Ethernet network 209.165.202.128/27 – router has last assignable host address in subnet
Serial network is 192.0.2.16/28 – router has last assignable host address in the subnet. Interfaces should be enabled.
Router protocol is RIP V2

Attention :
In practical examinations, please note the following, the actual information will prevail.
1. Name of the router is xxx
2. Enable-secret password is xxx
3. Password to access user EXEC mode using the console is xxx
4. The password to allow telnet access to the router is xxx
5. IP information

Solution

(Note: If you are not sure how RIP works, please read my RIP tutorial: http://www.9tut.com/rip-routing-protocol-tutorial. Note: You can download this sim to practice here: http://www.9tut.com/download/9tut.com_CCNA_RIP_Configuration.zip)

1) Name the router:

Router>enable
Router#configure terminal
Router(config)#hostname R2-RC

2) Set secret password:

R2-RC(config)# enable secret cisco1

3) Set password for the console:

R2-RC(config)#line console 0
R2-RC(config-line)#password cisco2
R2-RC(config-line)#login
R2-RC(config-line)#exit

4) Set the Telnet password:

R2-RC(config)#line vty 0 4
R2-RC(config-line)#password cisco3
R2-RC(config-line)#login
R2-RC(config-line)#exit

5) Assign IP address for Ethernet interface (Fa0/0):

The Ethernet network 209.165.202.128/27 has:

Increment:32 (/27 = 255.255.255.224 or 1111 1111.1111 1111.1111 1111.1110 0000)
Network address: 209.165.202.128
Broadcast address: 209.165.202.159 (because 128 + 32 – 1 = 159)

Therefore the last assignable host address in this subnet is 209.165.202.158 and we will assign it to Fa0/0 interface with these commands:

R2-RC(config)# interface fa0/0
R2-RC(config-if)#ip address 209.165.202.158 255.255.255.224
R2-RC(config-if)#no shutdown
R2-RC(config-if)#exit

6) Assign IP address for Serial interface (S0/0/0):

Serial network 192.0.2.16/28 has:

Increment:16 (/28 = 255.255.255.240 or 1111 1111.1111 1111.1111 1111.1111 0000)
Network address: 192.0.2.16
Broadcast address
: 192.0.2.31 (because 16 + 16 – 1 = 31)

So the last assignable host address in this subnet is 192.0.2.30. Finally we assign it to s0/0/0 interface:

R2-RC(config)# interface s0/0/0
R2-RC(config-if)#ip address 192.0.2.30 255.255.255.240
R2-RC(config-if)#no shutdown
R2-RC(config-if)#exit

7) Configure RIP v2 routing protocol:

R2-RC(config)#router rip
R2-RC(config-router)#version 2
R2-RC(config-router)#network 209.165.202.0
R2-RC(config-router)#network 192.0.2.0
R2-RC(config-router)#end
R2-RC#copy running-config startup-config

Note: We should use classful networks (209.165.202.0 & 192.0.2.0) when configuring RIP. If we use detailed networks (209.165.202.128 & 192.0.2.16) the router will automatically convert them into classful networks.

Comments
Comment pages
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  1. hack
    January 7th, 2015

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  2. hack
    January 7th, 2015

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  3. Mary
    January 18th, 2015

    Could anyone tell me if I need to include the “no-autosummary” command in this lab? I think it’s more correct, and it’s included in the solution indeed (just check the running-config file and the ripv2 section…) Please, help me!!!!

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    January 20th, 2015

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  6. SB
    January 26th, 2015

    Can anyone tell me , if I use exact networks in RIP V2 configuration, use no auto-summary, will the answer be right?

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    January 31st, 2015

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  8. sneha
    February 11th, 2015

    In the above sim why do we use classful networks when RIP v2 supports classles networks/VLSM

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    February 12th, 2015

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  10. NW
    February 16th, 2015

    I am unsure why we do not check that RIP is advertising the route out. I have completed the lab and typed ‘show ip route’ to see the rip route in there and it was not there. I f i was in the exam i would be thinking i have done it wrong.

  11. bkool
    February 26th, 2015

    @NW, if you are config as the answer you are Ok, but you need to config RIPV2 on the router R-RT. After that you can issue “show ip route” on both.

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    March 2nd, 2015

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  13. Sergio
    March 8th, 2015

    R1-RT is not enabled RIP routing.

  14. Anony
    March 19th, 2015

    Does anyone know why ‘sh ip route’ command on R2-RC doesn’t show the ‘RIP’ update with all the above mentioned configuration?

  15. Anony
    March 19th, 2015

    Please some one reply on the above question soon I have exam to take.

  16. jj
    March 22nd, 2015

    You don’t see the routes because you are Advertising the networks not learning them on R2-RC. A better command to use is “show ip rip database”; this will show what is being advertised. Using “show ip route” shows what you are learning.

  17. Anonymous
    April 4th, 2015

    After the configuration on R2-RC all thing work fine but serial protocol is down can someone tell me why?

  18. AN
    April 7th, 2015

    Its a layer 2 issue… you need to sync the clock between the serial

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    April 7th, 2015

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    April 11th, 2015

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    April 24th, 2015

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    May 1st, 2015

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    May 2nd, 2015

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  27. Agya
    May 5th, 2015

    How do we differentiate between the two passe-words cisco1 and cisco3, I mean is the enable secret password not also a console password? After setting the enable secret password, would the console password not be redundant? In other words, are they both not initiated with the enable command: don’t they both enable the USER EXEC mode?

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    May 7th, 2015

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  29. testtaker
    May 7th, 2015

    Guys the commands are ok for the purpose of answering the question but if you are practicing on RIP with this pkt and you wanna have route exchanged you should also configure it on R1-RT same way as you’ve done on R2-RC and then you will notice that routes are still not exhanged. Why?

    Because line protocol on the Serial link is down. Why?

    Because a clock rate is not set on the DCE side of the cable. Which side is the DCE?

    Check it this way: Router#sh controllers
    and then configure a clock rate on the right interface. How?

    Router(config-if)#clock rate 4000000
    Line protocol will go up and everything will work like a charm. Check “sh ip route” to verify.
    I hope this helps :)

  30. jkkj
    May 9th, 2015

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