OSPF Sim
Question
9tut.net company has decided to network three locations to improve efficiency in inventory control. The routers have been named to reflect the location: Boston, Frankfurt, Lancaster.
The necessary networking has been completed at each location, and the routers have been configured with single area OSPF as the routing protocol. The Boston router was recently installed but connectivity is not complete because of incomplete routing tables. Identify and correct any problem you see in the configuration.
Note: The OSPF process must be configured to allow interfaces in specific subnets to participate in the routing process.
You can download this lab and open with Packet Tracer here: https://www.9tut.net/download/OSPF_Sim_with_Solution.zip. Please say thanks to Renan who shared the files with us!
Answer and Explanation:
The question mentioned Boston router was not configured correctly or incomplete so we should check this router first. Click on PC-B to access the command line interface (CLI) of Boston router.
Boston>enable (type cisco as its password here)
Boston#show running-config
First, remember that the current OSPF Process ID is 2 because we will need it for later configuration. Next notice that in the second “network” command the network and wildcard mask are 192.168.155.0 and 0.0.0.3 which is equivalent to 192.168.155.0 255.255.255.252 in term of subnet mask. Therefore this subnetwork’s range is from 192.168.155.0 to 192.168.155.3 but the ip address of s0/0 interface of Boston router is 192.168.155.5 which don’t belong to this range -> this is the reason why OSPF did not recognize s0 interface of Boston router as a part of area 0. So we need to find a subnetwork that s0 interface belongs to.
IP address of S0 interface: 192.168.155.5/30
Subnet mask: /30 = 1111 1111.1111 1111.1111 1111.1111 1100
Increment: 4
Network address (which IP address of s0 interface belongs to): 192.168.155.4 (because 4 * 1 = 4 < 5)
Therefore we must use this network instead of 192.168.155.0 network
Boston#configure terminal
Boston(config)#router ospf 2
Boston(config-router)#no network 192.168.155.0 0.0.0.3 area 0
Boston(config-router)#network 192.168.155.4 0.0.0.3 area 0
Boston(config-router)#end
Boston#copy running-config startup-config
Finally, you should issue a ping command from Boston router to Lancaster router to make sure it works well.
Boston#ping 192.168.43.1
Other lab-sims in ICND2 Exam:
Other lab-sims might appear in the real ICND 2 exam, read and understand them if you have enough time.
I have the OSPF lab sim.
greetings. send me ospf lab sim pls, eigrp, acl and vtp
jim.tagadan@yahoo.com
Hi guys I do appriciate all the data I have just gain for just going through all your comment
hi Ally_Makongo & jitin, whoever is having the sim.
I created the sim . i got the sh run in frankfurt :
router ospf 2
log-adjacency-changes
network 192.168.155.8 0.0.0.3 area 0
network 192.168.29.0 0.0.0.255 area 0
network 192.168.155.4 0.0.0.3 area 0
!
lancaster :router ospf 2
log-adjacency-changes
network 192.168.155.8 0.0.0.3 area 0
network 192.168.43.0 0.0.0.255 area 0
!and boston as well. BUT i dont know y am not able to ping it 🙁 Feeling very frustrated.
Can anyone send me a stimulated Lab of this OSPF and if u have for NAT sim as well ( In the NAT Lab, i was unable to ping 🙁 .. ) …
its urgent – Thanks a lot – My email id is creativeme777@yahoo.com.au
Thanks
Hi, Can I have a copy of the OSPF sim??
Hi, should the command be
network 192.168.155.5 0.0.0.3 area 0
instead of
network 192.168.155.4 0.0.0.3 area 0
as the .4 is the network address ?
Nav, sorry I mean why can’t
network 192.168.155.5 0.0.0.5 area 0
be used. It does fall into the range of the subnite 192.168.155.4 – 192.168.155.7
I passed mi INCD2 today with 902 – OSPF was not in, only VLAN & FRAME-REALLY
I want ospf lab simulator. Kindly send on my email tayyeb.88@live.com
Does anyone know which labs come up on the icnd2 exam?
It’s random Paul. Just make sure you’re familiar with the basics of how to configure the ones listed on ehre and you’ll be fine. At CCNA level you don’t really have much to configure.
Can you send me please the OSPF sim to my email avp144 at yahoo.com?
Thanks in advance! 🙂
Hi everybody,
is there anyone so kind to send me over the .pkt file for this OSPF Sim lab?
Here my email address: flen77@libero.it
Thanks in advance to all and good luck for whom, like me, is preparing ICND2! 🙂
I made the lab, it doesn’t take long to make, maybe 15 minutes. Making it also gave me a greater understand of the situation. I suggest you do the same. Just don’t forget to set the clock rate on the serial links to bring them up. I stumbled on this for a little.
I take my ICND 2 tomorrow at 6:15pm! I will let you guys know what SIMs I run into!
Any update on what SIMS you’ve gotten people?
Anyone have any information on the FRAME RELAY SIM that everyone is talking about that is on the exam?
sim labs and packet trace could be sent to jufabre@yahoo.com thx !
Anyone know if this sim could be on the icnd1?
I took the ICND2 on Saturday and this SIM was there. If you guys follow 9tut, you’ll be fine. BTW I passed with 888 points
Hello
I have my exam tomorrow and I was wondering if someone could send me the labsim for the OSPF please!!!!!
bugzyrandhawa@yahoo.com
Thanks
Hi Binary; how did itgowithyo exam. which sim lab you gotin theexam?
Sorry Binay, i spelled yo name wrong. Im preparing to take mine next week friday.
me too, please ciulhycutza@yahoo.it
Hi,
I have my exam this sunday and I was wondering if someone could send me the labsim for the Frame relay and OSPF please!, I would apreciate if I could get more advise on the topic gsureshbabu@acanac.net
Thanks
Hi,
I have my exam this sunday and I was wondering if someone could send me the labsim for the Frame relay and OSPF please!, I would apreciate if I could get more advise on the topic. Pls forgive the mistake in mail Id in the last comment gsureshbabu2000@acanac.net
Thanks
Hi friends,I need some information about ccda .actually i have passed my ccnet exam now i am interested in ccda instead of icnd 2 so is that possible ?or i will pass anathor ccnet exam for ccda?Please help me.
Hey IT people. Jus passed my exam yest Feb 22. I had The VTP sim with the admin_2 switch config and the Frame Relay hotspot with the multinational branches. There were about 4 IPV6 questions including “which ipv6 address is the all-router multicast group”. Plenty of switch vlan questions but all the questions I have seen here. THANKS 9tut
Rasronn where is the frame relay hotspot sim at on this site? thanks for the good info!
waltini – Its under ccna questions. For some reason the majority of ICND2 exam questions are from the 9tut ccna site.
http://www.9tut.com/ccna-hotspot-questions
I really don’t understand why people are asking for dumps and sims. Can you people not use google and it takes about 15 mins to create this sim, If you cant create it, you should not pass test.
I agree StudyMan. I made it on Packet Tracer.
Please. Can you send me all the Labs for packet tracer? Thanks and greats from Germany. Joerg > hp4k_soca(at)gmx.de
Hi. Could someone please send me the OSPF-SIM for Packet-Tracer? (If you have NAT, VTP and EIGRP Lab Sims, it’ll be awesome to have, too. 😉 )
felix@wb-productions.at
THANKS A LOT!
It’s barely worth the time to make. Boston router has the wrong /30 network advertised in ospf. It takes 15 mins to create the lab, and then 90 seconds to correct it. I wouldn’t worry too much about have a pkt file for it. It’s not complicated enough to be worth your time IMO
I am giving the exam on next week. Could anyone tells me ,how to study? Only acl, vtp and eigrp simulations were coming in the paper ? Give me some tips to crack ccna?
could someone please send me the OSPF & NAT & VTP & EIGRP LABS SIM?
please..
please to send me the packet tracer labs
Thanks in advance
saeedawwad@yahoo.com
could anyone please give me the link of FRame Relay sim, i would be thankful to you.
I am going to take ICND2 do I have to practice all the sim for CCNA?
I can send you the OSPF one… Does it helps?
Just found this site today! Very useful thanks. =
BONZ, THE LAB IS CORRECT,
Interface Boston S0 and Frankfurt S1 are on the subnet that goes from 192.168.155.4 to 192.168.155.7, they have the correct ip addresses that belong to hosts on that subnet
and
Interface Frankfurt S0 and Lancaster S0 are on the subnet that goes from 192.168.155.8 to 192.168.155.11 , they have the correct ip addresses that belong to hosts on that subnet too
in the answer, the network changes to 192.168.155.4 0.0.0.3 because that’s the network that contains the addresses of Boston S0 and Frankfurt S1 and that makes the connection to be correct!
Please can anyone tell me if they have any questions on IPV6?
Thx@ Marioniyo i see it now
Thx@ Marioniyo i see it now
tried emulating this lab on packet tracer if you use the 192.168.155.5 0.0.0.0 area 0 statement it converges with the rest of the area but maybe im wrong not really up to speed with ospf :))
yes YOU ARE right. I did this morning
anyone can you please send pkt lab sim.
srm_ece@yahoo.com
The answer for the wild mask 0.0.0.3 for the second correct answer is wrong the wild card mask should be 0.0.0.7 since we are using the block size of 4 and it increments to 8 the block size is always one less than the actual block size and s0 ip address of .5 falls in between. Please some one correct me if I’m wrong I would appreciate it
@Andrew. The mask is one less than the block size, you’re correct there. The block size for that area is still only 4 though, from 4 to 7. That’s why the mask is 0.0.0.3. The network is 255.255.255.252, so the mask difference is 0.0.0.3.
Did not have this SIM yesterday.
Can anyone send me the PKT lab sim
dwebb@isccorp.net
Thanks!
Can someone please email this PKT lab sim to me?? viper911ad@yahoo.com THANK YOU!
Can anyone please send me ospf Lab?
crawfordr@outlook.com
I’ve just practiced making this as a Packet Tracer Sim. Uploaded it here for anyone who would like to use it: http://www.filefactory.com/file/57dzfh06d041/n/OSPF.pkt
I neglected to mention that all passwords on the Sim I uploaded are cisco.
Hi guys I’m building one here… I can send you if you want.:P
Rico….Can you please send it to me?? My email address is viper911ad@yahoo.com THANK YOU
Ricky Bobby – I can’t download from that link. I even tried signing up for an account. Can you please email it to me at viper911ad@yahoo.com OR ANYONE ESLE FOR THAT MATTER. THANK YOU
Spot on with this write-up, I truly feel this internet site wants a lot more consideration. I’ll almost certainly be again to read much more, thanks for that information. jordans cheap http://jordanscheapmmi.kouaa-blog.com/
CAN ANYONE SEND ME THE LATEST DUMPS FOR ICND2 640-816 IM TAKING IT NEXT WEEK AND COULD USE SOME GOOD STUDY MATERIAL AND LATEST EXAMS, THANKS, RAYRAY
Don’t be silly guys: examcollection.com
Updated dumps are posted there, all the time.
Can one send me the PKT practice for this? test is in a week!
jtbowers2013@yahoo.com
why they use the adress 192.168.155.4 ??? if the increment is 4 !!! i mean 192.168.155.4 is a network adress!!! why they dont use 192.168.155.3 that is one ip adress??? please somebody answer my question !! thanks!
why they use the adress 192.168.155.4 ??? if the increment is 4 !!! i mean 192.168.155.4 is a network adress!!! why they dont use 192.168.155.3 that is one ip adress??? please somebody answer my question !! thanks!
@ ram – The only thing they use the 192.168.155.4 address is in the network statement. All that does is identify what interfaces are to be included in the OSPF process. 192.168.155.4 is the network address of the subnet that S0 is part of. The original network statement included addresses in the range of .155.0 through .155.3 which does not correctly identify S0 since it is in the .155.4 through .155.7 range (subnet).
Can someone send me the packet tracer lab for this?
Thanks
general@websoftpc.com
we can also write the OSPF network statement like this:
network 192.168.155.5 0.0.0.0 area 0 (This will tells the router to look for an exact match, an all 0s wild card tells the router to make an exactly match on the IP configured on the fast port- this may be easier than having to worry about 0.0.0.3 match)
Also since both interfaces are in the same area, area 0 we can write the OSPF network like this:
network 0.0.0.0 255.255.255.255 area 0 <–this says to match all interfaces in the router and add them to area 0. This is a much easier way in my opinion because it basically says router add all of my interfaces to area 0 in 1 statement…instead of having to write 2 lines..but this only works if the interfaces are in the same area..they must be in same area in order to work.
So now, have Multi-Area OSPF in exam CCNA R&S
http://thietbivienthongbachkhoa.com/Default.asp?mod=News&action=list&NewsID=127&temp=Vertuvn_vn&Object=1&ItemID=83&Language=vn
@ Fabian. Not sure if I would get in the habit of including all interfaces. You lose a lot of the fine tuning abilities of OSPF and I’m not sure how this would go over on the exam. Cisco is rather particular when it comes to how they want things done.
I got this sim on my exam today. makre sure you study this hard.. looks like almost everyone is getting this.
Grateful if anyone could kindly forward me a copy of this sim please.
deskom@seychelles.net
To download ccna lab goto
http://blog.acmeinfotek.in/search/label/CCNA%20Simulation
31/08 Passed cant remember if any these came on the exam but this site is still very Valid.
Passed my CCNA study hard! 9tut and CCNA_Study_Guide7 its help a lot.
Is there any IPv6 question that we can face on the test. I didn’t see any posting in here about that.
Guys, all I did was use Packet Tracers, load 3 x Custom Made 1841’s connected them with serial cables and configured as per above and configured them from scratch. I also connected 3 x switches to each router Fa0/0 interface and configured their VLAN 1 in the LAN range and configured the OSPF as per above (and I added loopback IP and router ID on each router to really get a grip of it all) made sure OSPF adjacency occurred and pinged from Switch I connected to Boston to the Switch I connected at Lancaster. Learned the whole process in 1 go. Really fun stuff.
Please Guys send me the PK of this lab if someone have it.
Can someone send me the correct OSPF sim for this? need to practice this one.. will have my exam 3 days from now (640-802 CCNA).. and also any tips for those who taken the exam already? thanks much!! blue000111@yahoo.com
Does anyone have the packet tracer lab for this sim?It would be a great help if you can send it to me at willyjra@yahoo.com or just post the link here on 9tut.Thanks in advance.
Build it in PKT .. You will learn it better
what if i use wr to save the configuration instead of copy running-config startup-config, is there something wrong or issue with that?
Can anyone send me PKT Lab sim?
st_ve33@yahoo.co.uk
thanks
Can anyone please send me this OSPF Lab sim?
st_ve33@yahoo.co.uk
thanks
Instead of using a simulator, I built my own CCNA lab with 3 routers and 3 switches like this exam scenario question based on some suggestions here http://www.certificationkits.com/cisco-lab-suggestions/ I feel it helped me not just memorize answers, but actually understand how to properly configure OSPF in the real world.
good 1
it ‘s good
hi, im taking the icnd2 the week coming up and i was wondering if anybody can send me the lab sims if not already on here. it’ll be great help! dominicang2123@aim.com
pls would someone be so kind as to send me the the pkt sim labs for OSPF, EIGRP and any others that may be out there for ICND2.
rudey_rudey@yahoo.co.uk
Thanks in advance.
Why can’t ylu just use IP address 192.168.155.5 with a wildcard 0.0.0.0? Isn’t this supposed to be a Cisco best practice
Anyone still getting this lab in the EXAM ICND 2 ?? Thanks guys i would really appreciate it if you tell me.
Ciscoita.
Taking ICND2 200-101 tomorrow to try and rap up my CCNA! Here we go!
Has anyone seen any variations of this sim?
Simply find the subnet the serial interface belongs to and ping? And possibly verify route table is updated?
Can anyone confirm that this is the only configuration SIM on the ICND2 (200-101)?
Popular SIMs seem to be EIGRP, OSPF and Frame-Relay. NAT and VTP SIMs seem to be eliminated on the 200-101.
Taking the test in a few days or early next week to renew my CCNA so all the input is greatly appreciated! I’ll be posting an update when I finish mine
would you be able to send the OSPF packet tracer url to upload for CCNA 100-101 exam.
Can anyone who took exam lafter sept 30 answer Justin’s question please (1 post above kamani’s one) OSPF config lab sim still in the 200-101 version? or is there a just answer one with show comands…???
And were can I find the new OSPF lab^^
Hi, just curious, I see loads of people asking for the .pkt file for this ospf sim, can some please just post it on this site 🙂
Alright everyone, just passed today with a 933! The Hush dump is pretty accurate along with the questions on this site. Memorize these like the back of your hand so you can spend your brain power on the labs.
On one of the above labs, someone mentioned that they changed one of the answers to the PPP as the issue (may have been the 6 router one from what I recall). This seems to be true. I eliminated all the answers except for that one. If you get nervous on tests, it is important to really think about what interface you are looking at for each router and eliminate the multiple choice answers one by one.
Study the hush dump like crazy, and the labs even more so by setting up a packet tracker environment similar to the three labs on the test (OSPF, security simlet and the show lab).
Good luck!!