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)
can someone kindly send the CCNA 640-802 latest dumbs 2 my e-mail address: oluwashinasamson67@gmail.com. My exam is near plz. 10ks
I Passed 24.03.2015, with 917/1000
thanks u SO much 9tut…
THIS LAB WAS IN YESTERDAY PAPER.
I Passed 25.03.2015 , with 972/1000 . This lab and acl 1 and acl 2 were in exam
Thankx 9tut .
@mohammed
SNMPv2c not use MD5…only community string that are not encrypt
you sure about 1000/1000???
I passed 3-25-15, with 968/1000.
-ACL, ACL2 mod2 and EIGRP.
Thanks 9tut!
Hi
where I can get the watson dump ?
Thanks to God Passed CCNA exam with 962? How wonderful is that.
Read 9tut everything is there.
Thanks alot
I passed on 22 March . Labs were ACL 1 , ACL 2 ( Modification 1 ) & EIGRP. Read 9tut and mathew 319q .
Passed the exam with flying colours 9tut does well
EIGRP 212
ACL MOD 3
VLAN Trunking
ACL
STP
Switching
Netflow
SNMP
Subnetting
Basically all the questions where here besides 4 new questions. You guys will be fine just practise these questions to get a good understanding of what CCNA is about. Make sure you understand what each section is about e.g. frame-relay, WAN, etc etc.
Because at the end of the day you can pass the exam but wont understand j@ck Sh!t about what networking is all about.
Still valid in London?
Yes
I took the CCNA today and saw the “No Passive-Interface” on the connection to R3. The “no passive-interface” command was not working so I had to do a “no eigrp 212″ and redo the entire configuration.
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Passed CCNA Today with SCORE = 1000/1000
Thanks to 9tut
Labs ACL 1 ACL 2 mod 3 EIGRP Sim AS 221
All Questions from Watson 325Q Dump which is enough to pass the exam.
This Lab was on my today’s Exam… Thanks to 9Tut…. My total score: 876
Passed CCNA Today with SCORE = 1000/1000
Thanks to 9tut
Labs
1.ACL 1 the same lab
2. ACL 2 mod 3 but for host b instead of c and change in IP’s ,
3.EIGRP Sim AS 12 not and it was 22 in the wrong router only IP addresses are different and router names .
all other question are the same as 9 tut with some change in order
Hello John any advise about the test ?
can someone tell me where I can get the Watson Dump please
thanks in advance
this lab was on my yesterdays exam.. Passive interface applied on the interface s1/0 to ISP. But i am not able to ping serial int of ISP router. Is it because of passive interface command ???
After correcting EIGRP config at new Router and adding the network statement(network 192.168.77.0) at R1 , i am able to ping 198.0.8.6 but not able to ping 198.0.8.5(int IP of ISP Router), but as per Q, we can able to access to internet. Ca any one explain.
Thanks to 9tut…i have passed yesterday exam with 958/1000.
Hi all,
in the exam, is it ok to use copy run start instead of copy running-config startup-config?
Passed CCNA today with 1000/1000… Thanks a lot 9tut. You guys Rock.
SIM:- ACL2 (modification 3 but router A), ACL and eigrp [router ip and names changed so be careful ]
47 question from 9tut. So 9tut is enough, i would say to crack the CCNA exam. No need of any other docs to refer.
My advice:- Practice SIM using packet tracer, dont forget to use “copy run start-config command”. See yon on other side. Read question carefully, As some small modification will be there to change ip address or subnet mask etc.
@Ani
did you used “permit ip any any” in acl2 mod 3?
hEY……..so watsO
Ani today exams Acl3 mod 3 was in there Eigrp 112 and some drag n drop questions it was easy I passed with 1000/1000
9tut u guys rock.i passed 1000/1000 yesterday.labs acl1,acl2 with host D accessing finance server with http.Eigrp 112.thank God i made it next level on point.
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Passed 903/1000 today. Labs are ACL 1, ACL 2, and EIGRP(very buggy lab sim). 9tut have all new questions for 200-120, BUT 60-70% ARE OLD QUESTIONS FROM OLD EXAM.
passed 1000/1000
11/4/2015
watson 314 & 9tut
labs acl1 + acl2 + EIGRP 23
Hey everyone…I just Passed my CCNA composite exam two days ago. I was scared as hell but once I sat for the exam, everything started to become smooth as water. I was really amazed to see that the question were exactly the same as 9tut. Even the options are same. Not only I PASSED, i GOT 1000/1000. Credit goes to 9tut. Without you guys, it would have been impossible. So those of you who wants to sit for the exam just do this 3 things to prepare.
1) Finish all the questions available in 9tut.( Dont just do them, understand them and do them
2) Finish some latest dumps such as Watson
3) Try to practice all types of lab but certainly practice and learn ACL1, ACL2 and EIGRP212.
If this 3 things are done properly, be sure that you will get 1000/1000. (email me only if you really need more help) Thank you.
Thanks today i passed my CCNA 200-120 exam ,glory be to God ! Thanks so much to 9tut .
Hi all….Passed 1000/1000
This is the best site .I got all the questions from this site only.Same sim ACl1,ACL 2 with mode 3 and eigrp 112 with default network and passive interface configured on the link connected to ISP.
can someone send the simulation topologies to my email? I have no idea which one is ACL1, ACL2 with mode 3 and EIGRP 112… my email is gundam747@yahoo.com
I request you all that if you have update dupms of CCNA so please e-mail me I’ll be thakful to you for that.
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Score 1000/1000. All you need is here, lab eigrp 212, acl1, acl2. careful with the names of the routers and ip, thanks people 9tut
Passed 1000/1000. This lab, acl1 and acl2. Most questions from 9tut. Thanks
Passed 917/1000… ACL 1, ACL 2 with modification 2 & EIGRP LAB with AS 2.
ALL watson dumps are valid 312.
Good Luck.
THANKS 9tut…….
@Raza pls do u mean EIGRP LAB with AS 212
?
Can I ask you guys what program u use to run the dumps? if you have an answer can u just please email me? torontoman66@gmail.com
sorry but where on this site are the Packet tracer labs that one can down load and practice.
I am especialy lost on the eigrp sims and MUST practice
much obliged
hey guys what do u mean by “be careful or router name and IP ” how is that
Hi rush I have the packet tracer for eigrp , acl and acl2 if you want i can email them
Email me those labs, much appreaciated zeyt-88@hotmail.com
am passed yesterday in exam 200120
this lap and ACL1 , ACL 2
passed 931
thanks 9tut
congrats Diaa…
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“Finish some latest dumps such as Watson”
Hi sanamchowdhury007@gmail.com, could you send me some dumps, thanks so much.