OSPF Sim
Question
OSPF is configured on routers Amani and Lynaic. Amani’s S0/0 interface and Lynaic’s S0/1 interface are in Area 0. Lynaic’s Loopback0 interface is in Area 2.

Your task is to configure the following:
Portland’s S0/0 interface in Area 1
Amani’s S0/1 interface in Area 1
Use the appropriate mask such that ONLY Portland’s S0/0 and Amnani’s S0/1 could be in Area 1.
Area 1 should not receive any external or inter-area routes (except the default route).
Answer and Explanation:
First, we configure Portland’s S0/0 interface so that it belongs to Area 1. So, we have to find out which sub-network the IP address 192.168.4.5/30 (the IP of interface S0/0 of Portland) belongs to. This address belongs to a subnetwork which has:
Increment: 4 (/30 = 255.255.255.252 or 1111 1111.1111 1111.1111 1111.1111 1100)
Network address: 192.168.4.4 (because 4 = 4 * 1 and 4 < 5)
Broadcast address: 192.168.4.7 (because 7 = 4 + 4 – 1) (It is not necessary to find out the broadcast address but we should know it)
The question requires that only Portland’s S0/0 and Amani’s S0/1 could be in Area 1, therefore we must use a wildcard of 0.0.0.3 (this wildcard is equivalent with a subnet mask of /30) so that there are only 2 IP addresses can participate in area 1 (they are 192.168.4.5 & 192.168.4.6). The full command we use here is network 192.168.4.4 0.0.0.3 area 1
The question also requires that “Area 1 should not receive any external or inter-area routes (except the default route)”. Recall that if we don’t want the router to receive external routes, we have to stop LSA Type 5. And if we don’t want to receive inter-area routes, we have to stop LSA Type 3 and Type 4. Therefore we have to configure area 1 as a totally stubby area. For your information, here is the definition of a totally stubby area:
“Totally stubb area – This area does not accept summary LSAs from other areas (types 3 or 4) or external summary LSAs (Type 5). Types 3,4 and 5 LSAs are replaced by the Area Border Router(ABR) with a default router. Totally stubby areas protect internal routers by minimizing the routing table and summarizing everything outside the area with a default route.” (CCNP BSCI Official Exam Certification Guide, Fourth Edition)
In conclusion, we have to configure area 1 as a totally stubby area. We do that by configuring Portland as stub and configuring Amani (ABR router) as a stub + “no-summary”suffix.
+ Configure Portland router as a stub:
Portland#configure terminal
Portland(config)#router ospf 1
Allow network 192.168.4.4/30 to join Area 1, notice that you have to convert subnet mask into wildcard mask:
Portland(config-router)#network 192.168.4.4 0.0.0.3 area 1
Configure Portland as a stub:
Portland(config-router)#area 1 stub
Portland(config-router)#end
Portland#copy running-config startup-config
+ Configure Amani router as a “totally stub”:
Amani#configure terminal
Amani(config)#router ospf 1
Amani(config-router)#network 192.168.4.4 0.0.0.3 area 1
Make area 1 become a totally stubby area, notice that we can only use this command on ABR router:
Amani(config-router)#area 1 stub no-summary
Amani(config-router)#end
Amani#copy running-config startup-config
Other lab-sims on this site:
EIGRP Simlet
Policy Based Routing Sim
hi all
i cleared my route exam today. The Labs were – EIGRP – OSPF Redistribution Sim – Policy Based Routing Sim – IPv6 OSPF Virtual Link Sim – OSPF Sim
@Jagi
which Dump you have used?
AGAIN, watch out for the sim vs the test. On the sim, they will specify different process numbers and area numbers for this one, so read very carefully. Don’t just memorize the sim here on digitaltut.
Exactly same lab in exam.
I passed exam with 100% marks. There were a few new questions e.g. EIGRP authentication (key-chain authentication —> Ans: R1 can communicate to R2 and R3) and RIP passive interface —-> Ans: Router RIP; Passive interface f0/0; neighbor .
All Lab questions were from http://www.digitaltut.com/.
Thanks to all who contributed in these websites!!! :)
I Passed yesterday with score 965 , thanks guys and digitaltut :) all labs from here
http://www.4shared.com/file/MNxMccev/GNS3_642-902_Test_Sims.html
all labs from digitaltut.com in GNS3 format with IOS. Its not my work, i am just sharing
One question
Can I on routers use comand
in Portland
network 192.168.4.5 0.0.0.0 area 1
in Amani
network 192.168.4.6 0.0.0.0 area 1
network 192.168.72.6 0.0.0.0 area 0
in Lynaic
network 192.168.72.5 0.0.0.0 area 0
network 239.239.239.239 0.0.0.0 area 2
sh ip route on Portland
192.168.72.0/30 is subnetted, 1 subnets
O IA 192.168.72.4 [110/20] via 192.168.4.6, 00:11:12, FastEthernet0/0
192.168.4.0/30 is subnetted, 1 subnets
C 192.168.4.4 is directly connected, FastEthernet0/0
10.0.0.0/32 is subnetted, 1 subnets
O IA 10.0.0.1 [110/21] via 192.168.4.6, 00:08:40, FastEthernet0/0
When are no any diferend host int the network we can use this solution.
In GNS3 works ok. It’s the same for me but we don’t need.
and after make area totally stubby i have rooting table on Portland
192.168.4.0/30 is subnetted, 1 subnets
C 192.168.4.4 is directly connected, FastEthernet0/0
O*IA 0.0.0.0/0 [110/11] via 192.168.4.6, 00:00:09, FastEthernet0/0
Pls tel me that is this correct or not
Portlan#configure terminal
Portland(config)#router ospf 1
Portland(config-router)#area 1 stub
Portland(config-router)#exit
Portland(config)#interface s0/0
Portland(config-if)#ip ospf 1 area 1
Portland(config-if)#end
Portland#copy running-config startup-config
Amani#configure terminal
Amani(config)#router ospf 1
Amani(config-router)#area 1 stub no-summary
Amani(config-router)#exit
Amani(config)#interface s0/1
Amani(config-if)#ip ospf 1 area 1
Amani(config-if)#end
Amani#copy running-config startup-config
make me right, if im wrong,pls
just passed with 976. tnx digitaltut and all
Glory be to God, i just pass my 902 today, a new redistribution lab, others are the same but diffierent ip and little changes in question like ospf sim, the ospf process id must be 54 .
Thanks….to digitaltul Today i cleard ma exam with 950marks…. lab is same area and router name is diffrent is so dnt wrry jst read command carefully…
I am doing this lab in GNS3. How do you verify if my configuration is correct without the answer key?
Also, the router would not take the loopback address of Lynaic.
Lynaic(config-if)#ip add 239.239.239.239 255.255.255.255
Not a valid host address – 239.239.239.239
Never mind. I figured it out. I realized I couldn’t verify it because I had only one router active at a time. Duh. I’m learning GNS3 for the first time. Didn’t want the high CPU to crash my laptop. Lol.
Taking ROUTE on Friday Oct 7. Any thoughts? Any changes? Still studying.
I will take route exam on 8th oct. please share the lab update
@dharsh
WHy you are giving OSPF V3 comands lol in IPV4
i am saying u r jst wrong and wow and u passed ur exam
PLEASE!! help me with the recent update on the labs am writing my exam on friday
muqeem how was your exam……is it the same labs?
can anyone share the lastes dumps as well as latest simulations… which came recently in the test.
seoulchild
Please can anyone send the latest dump on route 642-902 to me i will be writing in two weeks time please!!!!! to enhance my preparation. Thank you
Email: seoul.child@yahoo.com
I don’t understand why only the Amani router is configured with the ‘area 1 stub no-summary” and the configuration is not the same on the Portland router
@allegra The “area 1 stub no-summary” is only configured on the ABR.
Hi Guys, i passed the ccnp route..thanks to digitaltut..
Well passed the Route recently. Had the OSPF totally stubby. Seemed to have a twist of being able to ping from Portland to Lyniac loopback. This requires another config line, but it can’t be on Lyniac as it can not be configured. ;)
Hi! Are the commands used in OSPF Sim correct? I was wondering if we should specify the interfaces of Portland and Amani while giving the commannds. Please explain.
just passed with 941, all labs came from this website, had 3 labs 1. Policy Based Routing (Ip address was different), 2. IPV6 virtual link same as this website, 3. OSPF Sim (Process ID, Area and IP addressing was different).
Good Luck to all.
Studying for my test on Monday , Is there any changes in the test I got the sims from here and also tested those in gns3 they all work fine . Any suggestions for Monday test will be helpful.Thanks to everyone here on digitaltut .
hi all,i am preparing for routing exam.do i need to practice labs in gns3 or packet tracer is fine.i have packet tracer but not gns3.thanks.
..please i have a silly question …..how do we know the network address of ..>> 192.168.4.5/30 …… and i want explanation about network addressing ….please soon
Helo guys, I passed the exam yesterday (941/1000). The SIMs LABs here are extremely helpful. Thanks a lot.
@Mohamed, you’re posting on a topic about CCNP certification. If you are not sure about Network Addressing/IP Subnetting I would strongly recommend that you read some CCNA related articles, I’m sure they would clarify your doubts. However here goes a quickly tip.
CIDR Notation = /30 ==> Mask = 255.255.255.252
Take 256 and subtract from 252 = 4 (that’s your block size). So your network will increase in a step of 4, therefore your networks are:
192.168.4.0
192.168.4.4 ( <–192.168.4.5 fits here!!)
192.168.4.8
Got it ?
Regards,
Victor
@ccnp, honestly? Uinstall Pactek tracer today and dowload GNS3… just joking, but seriously, you WILL NEED GNS3 for a fully understand of the technologies on the route exam. Packet tracer is good for CCNA but it wont allow you to implement everything you will see on Route Exam for CCNP. Packet tracer is a simulator while GNS is an emulator (the only limit it’s the IOS that you have/bought).
Regards,
Victor
congrats victor, its good that you passed ue exams. so please tell me what were the labs that you had. please tell me are all these labs in digital tut still valid??????????
@bangz : Thanks bro. Yeah the labs are valid! I had on lab with Virtual links (this one you have to implement the virtual link and disable the incorret one), another one with mutual redistribution between EIGRP and OSPF, OSPF Totally Stub area, and PBR. They are all here on digitaltut, the same thing, just IP address and hostnames will differ a little bit. Good luck for you!
yeah …ok …….. but can we set the network in amani and portland routers like this >>>>> >>>> network 192.168.4.0 0.0.0.3 area 1
cuz net 192.168.4.4 resemble net 192.168.4.0 ……….right ……. am sorry abut this question …..i know it’s silly …thanx
please …what’s the last version of route exam …………..and if i study it can i success in the real exam ………thank you sooo much
@mohamed, that’s exactly what you gotta do bro. You cannot advertise the network under the interface (i.e. ip ospf 1 area 1) or even use the network 192.168.4.5 0.0.0.0 area 1. If you advertise 192.168.4.0/30 (192.168.4.0 0.0.0.3) you will NOT enable OSPF on the intend interfaces ‘cuz 192.168.4.0/30 does not include 192.168.4.5 which is the IP address of the interface you gotta advertise. So, you really need to advertise the network 192.168.4.4 0.0.0.3 (please note that on your exam this questions might be different, it was on mine [different IP Address])
The exam it’s the 642-902, although not sure what`s the current version (i would say it’s the second time that cisco reformulates the CCNP grade)
Absolutely yes, you can pass the exam if you study. Can I give u an advice? Try looking for dumps (just like this one here on digitaltut) only after you are almost done with your preparation for your exam. You are welcome my friend.
ok ….but enforce we have the same ip with different subnet mask ==> 192.168.4.5/28 …….255.255.255.240 ………then i must to write it like that >>>>> 192.168.4.16 ..right cuz 256 – 240 = 16 ………and the wildcard mask is >>>> 0.0.0.15……………please tell met this is true …… thank you veeeeeeeery mush victor . u r the best …
@All
which type of similater come in exam ???? can any one help ???
Thank you for DIGITAL TUT and Everybody, i just pass.
i pass 965 scores yestoday, 4 labs:EIGRP OSPF Redistribution- Policy Based Routing -OSPF -IPv6 OSPF Virtual Link,no OSPF Hotspot question
Can any1 gimme the link to download the route dump pls.Leo can u share the link if u have one.Was all the questions out of dump itself.?
@mohamed, the question asks that you must enable OSPF in such a way that ONLY interfaces S0/0 (Portland) and s0/1 (Amnani) would be part of AREA1, that’s the reason we are advertising a /30 prefix (0.0.0.3 wildcard). So that only 4 IPs would fit on that adversiment. If you have different subnets on the interfaces, such as the one you mentioned 192.168.4.5/28 (your wildcard calc is correct! 0.0.0.15), you would need to adversite this network 192.168.4.0 0.0.0.15 area 1, BUT remember this network goes from 192.168.4.0 – 15. Although if you have any other interface with an IP Address on that range (192.168.4.0 – .15) you will also include them on your advertise, which is not what Question wants.
P.S.: When talking about OSPF, keep in mind that only ABR/ASBR can summarize.
Regards,
Victor
Think Portland: network 192.168.4.5 0.0.0.0 area 1 and Amani: network 192.168.4.6 0.0.0.0 area 1 will do the same thing, here you will only advertise the interfaces. But they might ask you to use the wildcard mask as written in the text.
What I mean with the above is that it would work “in real life”, but it is probably not what Cisco is after.
Actually think you can use the netmask in osfp as well, and not only inverse mask.
Passed today with 965/1000 , all simulation are from digitaltut exactly , still REV7 is tottaly valid 100 % .. 2 new question MCQ , simulations are OSF,IPV6,Redistribution ,PBR .
Thanks to digitaltut and all of you those who posted comments here….
Really its great site……cheers…
@ bglr,can you please give me the dump that u have gone through it will be helpfull for me..
Hi !! ..
Plz answer this .. My CCNA Is going to expire in May-2010.
Do i have to complete CCNP before that ?? or just start , i.e Take only one exam out of three before MAY-2010
Wats the Fees for Route Exam .. in Rs .. ??
just passed CCNP-Routing with 976 . Digitut sim Questions 100% valid… only small changes were there…..
got 1 new Question…..
wts d short form of this IPV6 Address??
2002:0000:0000:0148:0000:0000:0221:1212
A. 2002::148::221:1212
B. 2002:0:0:148:::0221:1212
C. 2002:0:0:148::0221:1212
D 2002::148:0:0:221:1212
E. 2002:0:0:148:0:0:221:1212
wts d Answer???
i think C & D . are there any explanation????? about this…
the corect answer is C and D
Could anybody share me your dump??
Thanks a lot!!
elamigo50@gmail.com
I took the 642-902 exam and failed it. The questions here are extrememly outdated.
@Frustrated:
This site is considered to be source of guidance to see if you’re on the right track.
If you assumed these questions (with answers) would be on certification exam, then you deserved to fail.
be smart about this.
Study and understand the concepts thoroughly.
@legitimate
I agree with you, But in this case questions aren’t called as valid IMO
@ms , Thanks for the update , Can you let me know why is option E not the right answer for the ipv6 question
Guyz anyone to share with mi a link to download CCNP study material; sarakuchepa@yahoo.com.
thanx in advance.
Passed today with 976 …
Exactly the same concept but area ID is changed and OSPF process ID is changed but the same concept
Please can anyone send the latest dump on route 642-902 to me plz or plz let me known the link from where i can download..
Thanks
ID:hr.rajeev@yahoo.co.in
@ rajeev latest ccnp route dump http://www.4shared.com/folder/3UhM-i8n/p4s_642-902_route_v5.html
Enjoy !!!
all the best
Thanks.. Sumesh :)
Thanks to Digitaltut. I passed my ccnp route with 925 the day b4 yesterday (16/11). The labs were the same but few changes in IP add, router names/locations. For those that are yet to take, this is d right site for u. Pls understand and concentrate on the given parameters. Good luck.
could u please send latest route dumps pleaseeeeeeeee…..
Wrote ROUTE today…sim in exam…exactly as is
the router portland in exam named seattle could be configured with ospf with process id 18. every time i tryed it showed error message : atleast ospf shud hav something dont remember and also included router id needs to be added, something related to interface be up .
i checked int brief all int wer up , also config loop back 0 . nothing was effectice to config ospf 18 on portland(seattle)
“Use the appropriate mask such that ONLY Portland’s S0/0 and Amnani’s S0/1 could be in Area 1″
I am not sure if this has been addressed yet but I’d like to offer my interpretation for it. The suggestion above says that you should use a /30 subnet mask in order to configure only those interfaces to participate in OSPF area 1. Although that is true, I think using a more specific mask on each router is more right. When advertising on each router, instead of the wildcard 0.0.0.3, you would use 0.0.0.0; just like a loopback. This way, you ensure ONLY that IP address is participating in OSPF area 1. Sorry if this is a repeat, I just didn’t have time to sift through all the comments at this time. Thanks and let me know your thoughts!
i cud not run ospf on portland(seattle) router
when i enter this :
Portland#:router ospf 1
( router ospf must have atleast ospf interface up , router id .)
something like above error appeared n cud not b configured to run ospf ,then how u expect to advertise abt networks?
main problem is ospf cant be configured only
I salute you guys for doing a wonderful job. This site has been very helpful for many of the questions that I wanted an explanation for the answers.
I appreciate the good work and people’s feedback. Passed my Route exam with good score even though I finished about 45mins early and was concerned if that is a problem finishing too early. Read the book by Wendell Odom (very good book) twice. But doing the practice tests is the key. Good luck to all who are taking Route exam…
giving a exma
I took my exam yesterday… passed my exam…trololololol….same lab simulations….7 new questions from dumps…. o.O …. ty digitaltut and the person who has provided test lab sims…. ty all :D :D
@ms we know for sure a an b are not correct; c d e are all proper representations:
C. 2002:0:0:148::0221:1212
D 2002::148:0:0:221:1212
E. 2002:0:0:148:0:0:221:1212
So the final question is which two are the most correct. The most correct are d and e. Why? Because d and e has trimmed all the leading zeros and replace all zero octets with :: or 0. c still has an octet which has not been trimmed, second octet from the right 0221. So c is the least correct representation of the three.
i passed routing exam yesterday the same question but there are some changes in ip addresses and routers names take care
@King Ahmed: Congratulations :) Can you tell us with labs came in the Exam?
And which dump? Thanks
Shall we configure the default route or it will be configured?
pls how to solution this lab
http://www.4shared.com/photo/PBHk2jbo/new_lab_642-902.html
Thanks to all who posted the stuff here, Especially Thanks to Digtaltut for owning such a wonderful site. I cleared my Route today with 953 marks- I was expecting 1000 but couldn’t get- don’t know where my 47 number lost.
Would ike to share my experience:
1. Got all 5 labs. – OSPF SIM lab has differenet Ip Addressing Scheme. I got 192.168.39.5/30 and 192.168.39.6/30. Answer is same.
2. Questions from the Dumps mentioned below are more than 95 % valid.
http://www.examcollection.com/cisco/Cisco.Passguide.642-902.v2011-09-03.by.nonentity.338q.vce.file.html.
3. Please don’t mug the answers sequence number wise because in exam, options are on different numbers. I rememberd all options sequences are changed. Correct option can be on number C where dumps shows sequence number-A. CAUTION PLEASE.
3. Some new questions about EIGRP- Like EIGRM Stub receive only.
4. Fortunately only one DND question- That is about EIGRP.
5. No OSPF Hotspot and no EIGRP Simlet.
6. Some of the questions I rememberd are:
Internatioanl standard for Cable (something).- DOCSIS,
BGP Default Metric in Ospf-1,
IPV6 difference with IPV4 etc. etc.
Thanks again for wonderful sharing and be aware from those who share thier mail IDs claiming that they will share dumps but start demanding 5 USD- Please donate Digitaltute rather than an individual.
Next is TShoot as I have already done switching.
Good luck to all of you guys and a Happy New Year.
Can’t we use 0.0.0.0 wild cards on portland and amani routers insted of using 0.0.0.3 ?? I did that on gns3 lab , got same results as wanted. What does u people say ??
i will give exam tomorrow who passed the exam and got 100% in labs please share me your command and your experience and about dumps please.
Hi All
I passed the exam today !!! Many of You know Me Last time When I passed The CCNA exam I remember All the Question and i send to you all also and its very helpfull to U all !!! Dont Worry Friends this time Also I remember All the Question !!! In exam I got 50 question
Out of that three are Similator
2 drag and drop
Friends Any one Want the Question Please Update the Mail Id Or Send the Mail to the mail id : dononearth0@gmail.com ( as u know )
Better U send the Mail So that I can Quick reply to You All
Help other God will help You !!!
Ur Friend Ved Prakash INDIA
Passed ROUTE on 2nd December…..
Passed SWITCH on 22nd December…..
Passed TSHoot on 29nd December…..
…..
Got Job today itself, in TATA COMMUNICATIONS LTD……
on this LAB. is there any other way that I can verify if my configuration is working? Like ping or sh ip route?
Friends, how many hotspots are in the exam ? and could anyone share it ?
Thank you in advance
@ Roy :Congrats man :) You rocked the Show..
I completed my ROUTE exam on Dec 30th and I felt so Relieved. :)
Used CBT, P4S in VCE. Enjoyed the Exam cus of non native English extra time :D
Most were from Dumps. Labs from here. Ipv6,OSPF,EIGRP and PBR.
I seem to remember them asking 3-4 questions about Security IPSEC,GRE kinda stuff which were not in dumps. BGP Qs were more than others. :) Everything was Fair Game after a good prep :)
Relax and Enjoy your ROUTE :)
Hi, Please can someone post the official CISCO ROUTE official exam guide as a https or https download?
Don’t have access to various download sites dues to firewall restrictions and LAN security.
Thank you.
THANK YOU SHAHID to share me latest dump, i passed yesterday i used dumps nonentity.338q.vce or actual test v 6.2 all questions from those dumps those are 100% valid and sims are from digitultut.com same sims only ip address and are change,4 sims ( Eigpr and ospf redistribute / ospf stub / ipv6 virtual-link / pbr ) and read question carefully.
latest dumps actual test v 6.2 link http://www.4shared.com/office/J1iP8WU_/642-902.html .
this was in my exam this afternoon and I went nuts configuring this LAB. It was asked to changed process ID to 45 so please be careful guys……
@g-shock,
Do you mean that the process ID was 45 instead of 54. Or do you mean that in the directions, you were explicitly asked to change it?
@g-shock
so you mean… using no router ospf “process id”and router ospf “process id” commands to change process id on every routers?
happy new year to all. I’m planning to begin with ROUTE
please can somebody help me with tutorials on how to use GNS3 for labs and SIM. is it enough to do Labs and SIM with Packet Tracer?
Please sent me tutotials at docramji@yahoo.fr
Chris, Look through the SIMs comments and you will see the link to the GNS labs. You can’t do these in packet tracer.
What is the enable password on the GNS Lab for Amani?! (I’m talking about the 4shared file) Please HELP!!!!!!
Chris, someone posted this about 10 posts above. I am not sure if this is the same file-set that I DL’d a month ago.
http://www.4shared.com/file/MNxMccev/GNS3_642-902_Test_Sims.html
all labs from digitaltut.com in GNS3 format with IOS. Its not my work, i am just sharing
@ Dabba
Hi,thanks for sharing this tip with me. I’ll try it and I hope that I’ll manage.
Once more best regards
Any site that can give a comprehensive review for the CCNP path? I’m currently reviewing this site and some dumps but I don’t wanna rely only on these stuffs..
@Dabba:
What is the enable password on the GNS Lab for Amani?!
It is “cisco”
Took the exam. Reqs and Topology was exactly the same but with different IPs(same XX.4 0.0.0.3 subnet tho) and different router hostnames.
is there any way that i can verify it ? ?
guys can anybody send the latest dumps for ccnp routing or else share the link and my id is venkat674@gmail.com
Hello Friends,
I just started to study the ROUTE test after taking almost two years off from passing the CCNA. I am planning to take the ROUTE test in two months. Are the Sims, Drag and Drop, Questions, and everything else on this site still valid for the ROUTE test?
Thank you all!
Is it necessary to do a “copy running-config startup-config” at the end. What is you forget to do that ?