CCNA EIGRP LAB Question
Question
After adding R3 router, no routing updates are being exchanged between R3 and the new location. All other inter connectivity and Internet access for the existing locations of the company are working properly.
The task is to identify the fault(s) and correct the router configuration to provide full connectivity between the routers.
Access to the router CLI can be gained by clicking on the appropriate host. All passwords on all routers are cisco.
IP addresses are listed in the chart below.
| R1 Fa0/0: 192.168.77.33 S1/0: 198.0.18.6 S0/1: 192.168.60.25 S0/0: 192.168.36.13 |
R2 Fa0/0: 192.168.60.97 Fa0/1: 192.168.60.113 S0/0: 192.168.36.14 |
| R3 Fa0/0: 192.168.77.34 Fa0/1: 192.168.60.65 Fa1/0: 192.168.60.81 |
R4 Fa0/0: 192.168.60.129 Fa0/1: 192.168.60.145 S0/1: 192.168.60.26 |
Answer and explanation
(Note: If you are not sure how EIGRP works, please read my EIGRP tutorial: http://www.9tut.com/eigrp-routing-protocol-tutorial. Note: You can download this sim to practice here: http://www.9tut.com/download/9tut.com_CCNA_EIGRP_sim_question.zip)
We should check the configuration of the new added router first because it does not function properly while others work well. From the command line interface of R3 router, enter the show running-config command
From the output above, we know that this router was wrongly configured with an autonomous number (AS) of 22. When the AS numbers among routers are mismatched, no adjacency is formed.
(You should check the AS numbers on other routers for sure)
To solve this problem, we simply re-configure router R3 with the following commands:
R3>enable (you have to enter cisco as its password here)
R3#configure terminal
R3(config)#no router eigrp 22
R3(config)#router eigrp 212
R3(config-router)#network 192.168.60.0
R3(config-router)#network 192.168.77.0
R3(config-router)#no auto-summary
R3(config-router)#end
R3#copy running-config startup-config
Check R1 router with the show running-config command:
Notice that it is missing a definition to the network R3. Therefore we have to add it so that it can recognize R3 router
R1>enable (you have to enter cisco as its password here)
R1#configure terminal
R1(config)#router eigrp 212
R1(config-router)#network 192.168.77.0
R1(config-router)#end
R1#copy running-config startup-config
Now the whole network will work well. You should check again with ping command from router R3 to other routers!
Modifications:
Maybe in this EIGRP Sim you will see the “passive-interface …” command somewhere in R1 configuration. If the link between R1 to R2; or R1 to R3; or R1 to R4) routers has the “passive interface” then we have to remove it with the “no passive-interface …” command because it prevents EIGRP update from being sent on that interface. But if the “passive interface” is applied to the link between R1 and ISP router like this:
R1:
!
router eigrp 212
passive-interface s1/0
!
then we just leave it. Don’t use the “no passive-interface s1/0″ on R1 because the link between R1 & ISP doesn’t need EIGRP to run on it. A static route from R1 to ISP & “ip default-network” command in R1 are correct so that all the routers (R1, R2, R3, R4) can access the Internet.
(Note: The “ip default-network” command in R1 will advertise the static route of R1 (to go to the Internet) to other routers (R2,R3,R4) so that they can access the Internet too). In the exam you will see these lines in R1 configuration:
!
ip default-network 198.0.18.0
ip route 0.0.0.0 0.0.0.0 198.0.18.5
!
If you want to learn more about “ip default-network” command please read: http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094374.shtml
I read recent comments and realized that you will see the “passive-interface” in the link between R1 & ISP router so just leave it.
Note: Also some readers confuse about if we should use the wildcard masks on the “network” statements under EIGRP process or not. For example should we use:
router eigrp 212
network 192.168.77.0 0.0.0.3
The answer is: we can use wildcard masks or not, it does not matter. Not having a wildcard mask does not make the routes conflicting. The “network …” command in EIGRP (and OSPF, RIP) does not means “advertise this network” but means “If I has interface(s) belongs to this network please turn on EIGRP on that interface. Therefore when you don’t use wildcard mask EIGRP will turn on EIGRP on all interfaces that belongs to the network you specify in the “network …” command.
You should only use wildcard mask on EIGRP if you have 2 or more interfaces that belong to the same major networks but you don’t want to run EIGRP on all of them. For example if your router has 2 interfaces whose IP addresses are 192.168.30.1/28 and 192.168.30.17/28 but you only want to run EIGRP on the first interface, you can type “network 192.168.30.0 0.0.0.15″ under EIGRP process.
Other lab-sims on this site:
CCNA Configuration SIM Question (RIPv2 SIM)
as per question I think
What destination Layer 2 address will be used in the frame header containing a packet for host 172.30.4.4?
the answer.
A – 704
B – 196
C – 702
D – 344
Answer: C
I passed ccna on 29 th sep.Scored 978!!!
All Q came fom 9tut and bain dumps, Watson.Except Following this Multiple Q asked based on given LAB scenario.1 fom Eigrp and Ospf…Practice all adjacency troubleshooting commands and concepts,.All the best
I passed ccna on 29 th sep.Scored 978!!!
All Q came fom 9tut and bain dumps, Watson.Except Following this Multiple Q asked based on given LAB scenario.1 fom Eigrp and Ospf…Practice all adjacency troubleshooting commands and concepts,.All the best
where can I download VCE 1.1.5 guys
Hi all, I passed the exam yesterday with 985/1000. Thanks to 9tut and Watson. Watson dump is still valid. Better be careful because the answer order is jumbled. Please have an idea of the questions and answers in the dump.
5 Sims(only two configurations).
1. 9tut – EIGRP
Topology and the questions are similar but the IPs are difference.
2. 9tut- Access List Sim 2
Only two servers in the switch (Fin and Public). Only “C” can go through 80. No other resources in Fin Web can be accessed as mentioned in 9tut. All LAN, Core and C must be able to access the Public Server. Be careful, they change the requirement. So, read the question carefully.
3. 9tut- Access List Sim
Show run
4. EIGRP – Troubleshooting
5. OSPF – Troubleshooting
Good luck guys…
passed today the exam with 1000/1000. just 3 LABs ACL 1, ACL 2 mod 3, Eigrp AS 12.
there are 4 question came up. Etherchannel, OSPF.. i didnt encounter the new simlet OSPF and EIGRP..
my exam pass today 972.Sims ACL, ACL2 different ip mode 3 and EIGRP AS112.
thanks 9tut and watson.
everybody good luck.
I just passed CCNA exam an hour ago, All thanks to 9tut, there we two labs, eigrp and access-list they only changed the ip addressess
I pass CCNA exam yesterday 13 oct 2014, I record my thanks to 9tut ,there are two labs, eigrp and access-list they only changed the ip addreses..
thanks
Passed today with a score of 986. All questions were from Matthew 319 on examcollection, there were no new questions. I had 3 labs, EIGRP, ACL1 and ACL2. Router names and ip addresses will be different. Host D was used to connect to the Finance Server in the ACL question.
Thanks 9tut +Watson dump.
I passed Yesterday, score: 1000
3 sims: eigrp 2, acl1 and acl2 – mod 3 (my answer to 3rd command is: access-list 100 permit ip any any).
There were slight variation on some questions.
there are one question each from new questions (hsrp, snmp, netflosw,ethernet channel,syslog, ospf3).
“?” and short commands are ok.
Thanks and Best regards.
I have passed my ccna Today. Thanks to 9tut .
I have passed CCNA Exam…Simulations are ACL,ACL2,EIGRP AS=12, IP Address was Changed….Thanks 9 tut
Just passed. Score 958.
In this question, beside the already notice IP in interface to core wrong (i wans’ t able to ping Core, using 198.18.196.65 or 198.18.196.66. I used .65), ther is a neighbor that didnt show in any configuration of any routers. I take it off too (since isnt in use by no one router).
I dont know i which part os % grades thisnlab are included, but i got 90% in routing, 100% in TS and 80% in WAN)
I wish the best for every one that are trying. Good luck!
Passed with 1000
This sim was in today exam. ‘Passive Interface’ command was there only for ISP link. Therefore nothing to do with that command.
please, could some one send me the the correct dumps, I have the exam next month
tzarayass@gmail.com
Passed today 945/1000
Thanks to examtut.278q.vce,Watson.314q and 9tut simulations.
EIGRP LAB,ACL 1 and ACL 2 was there. Good luck everyone!!
Pass my exam today 100%, LAB’s ACL1, ACL2, EIGRP with AS 12, I have seen 1 new question
about OSPF Process Identifier.. I don’t recall whole question. 9tut Thanks for all the help.
Passed exam today 890/1000
Simulation helped me a lot.
Read watson and Examtut dumps + All sim , you will clear the exam
where can i find that mode 3 you all talking guys? pls, i’ll be taking the exam soon
Kylie check CCNA Lab at home page there you will find ACL 2 sims click on that and scroll down, you will see all 4 modifications
ahh.. thanks syed. found it now.. :D
today passed exam lab acl acl 2 eigrp dumps waston
Need help
I took the exam recently and did not get the 212 AS . Instead I got the AS different and IPs are very different though its the same scenario issue. I was not able to do the EIGRP simulation correctly.
First its asking to ensure if I can ping successfully the ISP Network from R3 that was newly added
I fixed the wrong AS number and I added the missing network portion in R3 connection between R3 and R1
I checked for passive interface other than s1/0 and no other interface was configured with passive interface. so nothing to worry for removing passive interface
finally I checked whether default network configured correctly in the R1.. I could never ping the isp network from R1 any help appreciated..
sorry I was meaning to say I could never ping the ISP network from R3
Passed exam today 935/1000 in Germany. Simulation helped me a lot.
Read watson and Examtut dumps. Lab was Eigrp and ACl 1+2
@Anonymous i can ping tru from R3 to the ISP, my exam is this week guys any update or advice?
I can’t belive what happened the questions were changed and labs too
Vtp I guess so
Please can someone confirm if the exam pool has changed taking mine on the 13th
Dump still valid my friend checked the exam tody and pass with 958
I confirm dump and lab exam still valid
Any one who could successfully finish EIGRP lab this month please advise if apart from adding missing network, checking for passive interface, checking and correcting the AS number & checking the default route configured in R1 will help R3 ping the ISP. Is there still any thing that is missing should be checked.
Thanks
I had this simulation, in addition I also had a network configured in the central router that was advertised without existing. I think it was 192.168.74.0. I issued the no network 192.168.74.0 in router-config mode. Passed with 1000. Thanks everyone!!!
Please i need working vce 1.1.7. please help me.
another modification in EIGRP lab in todays exam, Two networks are missing in router R1. Be careful
hi averyone
i score today 903/1000
thks
I passed my exam today. 971..All qstns from 9tut..ACL1, ACL2 and EIGRP SIM.
Thanks to Jesus Christ. I passed my CCNA exam. Thanks to 9tut. I passed with 1000/1000 marks.
I got 2 Lab simulations and 1 simlet. Eigrp 112 AS Number, Access-List 2 and Access-list 1.
Eigrp As 112 and I encountered different IP Address than this site.
On Access-list 2 different IP Address for LAN hosts and Finance server.
1. Host A accessing Finance web Server through web browser
2. Prevent all other Traffic for accessing Finance web server
3. Allow all traffic to Public Server.
****Please use permit ip any any for accessing public server *in this 9tut are 100% true * I got 100%.
Please for anybody who wants to Pass CCNA 9tut are more than enough!!!!!!!!!!!!!!!!
I passed my CCNA exam. Thanks to 9tut. I passed with 958/1000 marks.
All Questions from Dumbs
ACL1 ACL2 EIGRP 122 Practicals …
THnaks
Thank You 9TUT..!! Crazy story: In the middle of my CCNA exam today, (Eigrp Lab) the fire alarm went off in the building. Everyone had to evacuate. I lost 20 minutes off my exam time, but stayed calm and recovered, passed with a 920. Whew.! ACL1 and 2 (mod 3) and EIGRP. Dumps are for chumps, all you need is here…
thank 9tut, and all comments, pass exam ,score 1000/1000
sim EIGRP,ACL2(mod 4),ACL1
Questions – 51
new question from Either channel – ANS=speed miss match
EIGRP little bit Tricky – Add wrong network(192.168.20.0) and missing correct network (remove wrong one using no network 192.168.20.0 command and add correct network) , passive interface also their to ISP so I ignore it, First time ping was unsuccessful but i try second time it was successful I don’t know why, careful guys if your ping is not successful try twice before recheck you configurations, good luck all!!!!!!!!!!!!!!!!!!!!!
short command are working well (ex- conf t) , tab also working but only for first word in the command
EX- rou–>(TAB)–>router
router eig–>(TAB)–>not working(because you have to type eigrp 22)
? is working well in exam
pass exam today 14/11/14
Thank 9tut, and all comments, pass exam ,score 1000/1000
sim EIGRP,ACL2(mod 3),ACL1
Questions – 51
new question from Either channel – ANS=speed
and also one question little bit change loopback zero from dumps
EIGRP little bit Tricky – Add wrong network(192.168.18.0) and missing correct network (remove wrong one using no network 192.168.18.0 command and add correct network)
tnx to all
pass today 945/1000
Thank 9tut
sim EIGRP,ACL2(mod 3),ACL1
was a new question on SNMP
Well done BIlan4ik, what was the SNMP question?
Hello guys! I passed today. ACL 1, ACL 2 and EIGRP lab practical exam is very helpful for the high points. Thank you 9tut and dumps, watson.
passed yesterday ACL1,ACL2,and EIGRP kudos 9tut
I am planing to do my CCNA exam on 24th November. Can anyone send me the latest dumps plz. Here is my email- tik.kira@yahoo.com . Thanks.
Thanks for the effort guys
I’m planning to take the test on the 23th of November. can you send me the latest dumps at zool_4_life@hotmail.com