Home > Ticket 13 – DHCP Range

Ticket 13 – DHCP Range

March 17th, 2011 in TSHOOT Go to comments

In this ticket, check the IP on Client1, if it gets 169.x.x.x then use the “show run” command on R4. If you see the  “ip dhcp exclude 10.2.1.1-1.10.2.1.253″ then the DHCP range has been misconfigured.

Configuration on R4 was:

!
ip dhcp exclude 10.2.1.1-10.2.1.253
!

Ans1) R4
Ans2) DHCP
Ans3) on R4 delete ip dhcp exclude 10.2.1.1-10.2.1.253 and apply ip dhcp-excluded 10.2.1.1-10.2.1.2

Comments (65) Comments
  1. Confused
    April 9th, 2011

    Nice! Thank you networktut!

  2. RIP
    April 9th, 2011

    Thanks …..
    finally its good to see that site is fully updated………………………….

  3. FBI
    April 9th, 2011

    am feeling u guyz…did my tshoot yesterday had 986!got the DHCP tt.

  4. FBI
    April 9th, 2011

    2morrow is my birthday so happy i made my tshoot.

  5. Shadow
    April 9th, 2011

    Any updates for the EIGRP passive interfaces TT?

    What’s will be the symptoms for that, what can be pinged and what cannot?

    Thanks.

  6. RIP
    April 9th, 2011

    u can not pin R1,R2,R3,R4

  7. gell
    April 9th, 2011

    i passed this exame one week ago and i came across this ticket but luckily i spotted the issue .
    gd luck guys

  8. mp
    April 15th, 2011

    Is the faulty device R4 or DSW1; I believe the DHCP server will be configured on DSW1 not on router R4

  9. Anonymous
    April 16th, 2011

    The 642-832 TSHOOT Topology made available by cisco on the PDF is not the same as their online Topology demo. Could someone please confirm the actually topology used in the real exam?

  10. Mac
    April 22nd, 2011

    @mp

    take a look at the topology again- it is clearly mentioned that DHCP server is R4. DSW1 is the default gateway for client, NOT DHCP server

  11. Anonymous
    April 22nd, 2011

    Can anybody give me an example of exactly how the TT Questions are asked i the exam?

  12. Sonic
    April 26th, 2011

    @Mac, I think ‘mp’ is right. DHCP server can not be on R4 because it has interface from another network 10.1.4.4/30. Yes, on the topology is mentioned that DHCP server is R4, but the clients are from other broadcast domain. So, when DHCP client broadcasts DHCPDISCOVER message, it will be broadcasted only in 10.2.1.0/24 (VLAN10) and will not reach to R4 at all. DHCP server has to be somewhere in the clients net 10.2.1.0/24. There are two possibilities – on DSW1 or DSW2 (VLAN10).

    Can someone explain this please – Where is the mistake?!

  13. Sonic
    April 26th, 2011

    OK, I found it – it is possible DHCP Server to be from another network. In this case on R4. For this aim we have to use “ip helper-address 10.1.4.5″ command on DSW1′s fa1/0/1 interface. Then all broadcast DHCP discover messages from the clients will be transformed to unicast and forwarded by DSW1 to 10.1.4.5 (R4) :)

  14. mr.muschnik
    April 28th, 2011

    @Sonic
    Almost… the ip helper-address command needs to be configured for Vlan10s SVI (interface Vlan10 that is) not fa1/0/1.

  15. Sonic
    April 29th, 2011

    @mr.muschnik right! :)

  16. lina
    April 29th, 2011

    so networktut is right

  17. ROAD TO CCIE
    April 30th, 2011

    Does the CCNP 642-832 TSHOOT exam ROUTERS and SWITCHES resets themselves, or do we have to logout of all DEVICES after each Trouble Ticket?

  18. Felcor
    May 5th, 2011

    Hello everybody, I did the test today with 930/1000 – there is a tt of bgp and drag drop a question that is not available on the site that went into my exam, the rest are equal.
    Thank you!

  19. DBW
    May 15th, 2011

    I have completed my CCNP certification today by passing my last exam TSHOOP.
    The exam itself was kind of straight forward with almost all of the TT well know
    as state on this site. I had 2 DD, 2 MCQ & 13 TT

    One of the issues with this TSHOOP exam is that you have to constantly move windows around whiles you are trying to keep your concentration. I was also working on small screen. (Frustrating)

    TIP
    Have a strategy with your PING command
    Make sure you properly exit all devices after each ticket.
    Abort and move to the next TT if you can’t find the problem. (You can always come back)

    I think cisco should have offered a PRINT OUT OF THE TOPOLOGY to all candidates on exam day and collect them afterwards. Anyway! I have a good dump. Interested? Drop me a line donald.bart-williams@stjohns.surrey.sch.uk

    I am now going to be focus on ASA5510 firewall

    To all you CCNP Candidates on this forum including SWITCH & ROUTE, Good Luck and have a nice summer. It has been fun

  20. hima
    May 17th, 2011

    please i have exam in 22may please any exchange happened in tt & DD& CHOOSE please send me

  21. hima
    May 17th, 2011
  22. sam
    May 20th, 2011

    @hima no changes in exam, prepare well from networktut. all TT and Q from networktut

  23. Student
    May 22nd, 2011

    Do people have been using the ‘Abort strategy’ frequently? I have my exam tomorrow and i think its a great way to check our answers – whats your take on this?

    Thanks

  24. Duo
    June 3rd, 2011

    Damn~ I didn’t get this one.. but thanks networktut. I’ve the exam earlier,. 890pts.. ^__^

  25. Duo
    June 3rd, 2011

    Damn~ I didn’t get this one.. but thanks networktut. I’d my exam earlier,. 890pts.. ^__^

  26. Anonymous
    June 24th, 2011

    All my Dears, friend and brother.I have a problum my TSHOOT Paper exam date 5-July-2011
    If anyone have Updat Pass4Sure, and Dumps. so plz send to my E-mail.

    k_afridi1@hotmail.com

    kgul@etisalat.ae

  27. Luigy
    July 1st, 2011

    I am thinking that we could also use the command “show ip dhcp binding” to check if any IP addresses were given out by the DHCP Server.

  28. su
    July 5th, 2011

    dear all i did the test today with 986/1000 the dhcp server is on the R4 router the networktut is right

  29. sos
    July 5th, 2011

    i am fail today in the exam because i didn’t find any question only only 3 question

  30. Marilu
    July 8th, 2011

    Finally! This is just what I was looinkg for.

  31. Fergy
    July 8th, 2011

    Please guys how can I know when to ping from Layer2 Topology or IPv4 Layer 3 Topology. Can there be a possibility for me to use only one Topology to solve the entire problems? Please help me, I need to know.!!!

  32. icecold
    July 8th, 2011

    passed TSHOOT this morning and I am a CCNP now

    next thing, being with my family as they have missed me so much

    good luck for everyone

  33. worried
    July 15th, 2011

    @mr.muschnik

    I will take TSHOOT exam next week. what would be the answer for IP-helper? can you provide it please?

    1. DSW1 – device
    2. technology?
    3. how to fix it?

  34. Anonymous
    July 22nd, 2011

    info for IP-helper?

  35. pimppimps
    July 29th, 2011

    From what i gather,assuming i learned all the characteristics of each ticket a on the exam i just go through the config for R1,R2,R4,ASW1 and DSW1 just checking on any misconfiguration eg on R1 i check on ospf/nat/acl and bgp if ok i move on to R2 tc untill i find the misconfig,it seems to me that i can just pass without doing a single ping….

  36. Ahmed
    August 2nd, 2011

    please help me…the ticket of bgb was in my exam but there is a very strange matter..all three questions and their answers repeated for all 13 tickets and so i want to ask about all other topics..why only bgp in the exam..the answers of each three Qs for all 13 tickets are the same..is this logical?..I know nature of Qs and the topologies. i mean that in each ticket under a Q like how to fix it …i found answers of each ticket are the same

  37. red
    August 3rd, 2011

    Ahmed,
    You better prepare properly before you look at these questions. You should know how to trouble shoot the issue first otherwise no point to be a CCNP.This is should only be used for final reference.But before you come to this site you should read the books first.

  38. wael el-iraqe
    August 18th, 2011

    pass today
    100% still valid ‘

    no thing new..all the tickets & Q from networktut

    thanks networktut

  39. Anonymous
    August 21st, 2011

    Hi.. Don’t you need to exclude also 10.2.1.254, the standby IP address?

  40. nwaboy
    August 21st, 2011

    Hi Anonymous, though we may need to exclude 10.2.1.254 but this is not included among the options. But definitely, you do not need to exclude all the range 10.2.1.1-10.2.1.253. The most correct answer is as above. Thanks

  41. tk
    September 2nd, 2011

    hi guys.how am i gonna do my config when there is no way of entering the global config mode.

  42. lightspeed
    September 8th, 2011

    i passed my CCNP tshoot today , i am now a CCNP,

    I hated cisco for this exam, that i failed once (my first cisco fail , was this exam, i never failed a cisco exam before this one, ). This was my second attempt.
    ADVICE:
    This exam is a beast , practice all the question on “9tu” a lot,
    be ready to find ticket that really give you no clue on what is wrong.
    but follow my advise try your best and don’t give, try and answer as many questions as you can.
    i passed with 890/1000 with 1 ticket unanswered, run out of time. you see i passed so you can do the same or even better.
    At the end of the exam, i was almost sure that i failed the exam but i was surprised to see “congratulation, you passed “,
    So don’t give up in the middle of the exam and leave ticket unanswered.
    Tshoot is crazy, strange, and was not not not easy for me.

    But good luck, you have been able to reach this step, you are familiar with Cisco, “you can make it too “.

    john “lewakiwaki2@gmail.com “

  43. meagtech
    September 8th, 2011

    Hello light-speed, have my exam scheduled on Friday. I like your advice, about being ready. Feel prepared, lets see what is gonna happen. Failed switching before. I`ll definitely post a comment to share my experience with everyone.

  44. lightspeed
    September 9th, 2011

    what is gonna happen, my dear meagtech ?
    you will get ticket and you will have to go through the configuration to find the problem and propose a solution.
    Try and remember the different cases in this website and if you absolutely don’t see where the problem is , abort this ticket, and come back to it later on , do the easiest first so that you don’t run out of time.
    This is not going to be a piece of cake but you can make it if you focus , if you remember your cases from this website, if you stay calm.

    My dear friend, it is cisco, you know cisco, in tshoot you will have to find the trap and propose a solution, so come with your list of possible traps and be ready to spot traps that are not in your list

    good luck man

  45. Meerna
    September 14th, 2011

    hello,
    I failed the exam two days ago, and this is my first time to fail a CISCO exam. the questions where the same in networktut, but there is many changes in the routers and switches config. foe example in the DHCP question, when I checked the excluded IP’s on R4 I found that it is already excluded the correct range, even though I answered the same as in networktut and I didn’t try to find another answer, the same happened with the BGP question, and another couple of questions. do you know if there is new updates on the 642-832 questions? please help because I want to shedule the exam, and I don’t want to fail again. thank you.

  46. lightspeed
    September 17th, 2011

    Meerna;
    i also did fail that tshoot exam, it was also my first time to fail a ciso exam.
    Remember: this is a new type of exam, kind of mini CCIE tshoot, so you were not used to it.
    Do this: have a 2 days sleep, that wake up and tell say : ” i won’t underestimate cisco again” .
    Then go through all the ticket in this website, figure out how to look for issue, mistake, what can possibly go wrong in a give scenario, repeat and repeat, until you can for exam , until you can tell : in a ospf network, the network command must be in the same area (between two router), authentication must match, hello intervall, dead intervall must match, et..
    make a list of conditions, what about eigrp, switched lan, serial line, trunking port , interface vlan , .. you know , all these little guys … make a list of them and their possible issues…

    And then, go to the exam again, be cool but promise yourself that you are not going to give another 200$ to cisco without returning with your certification CCNP.
    And before you know it, da da …. you are CCNP.
    Just like me, i mean , just like us… you and me and all the others that beat cisco and hate cisco exam, and love cisco when we pass…

    laugh and be confident, you can make it.

  47. Meerna
    September 18th, 2011

    Thank u lightspeed for your reply. Yes you right. It seems that I knew my mistake.. I didn’t exit the devices after each ticket :( but I have one more question. every ticket have 3 question, did my answer to the first question affect the other two questions choices? I mean if I answered R1, the second question will give me sth like ( BGP, NAT, ACL).. but if Inswered ASW1 the second question will give me (Port security, VLAN Acess, switch connectivity) ??? waiting your reply.. thanks so much.

  48. Turncoat
    September 22nd, 2011

    Much like the TSHOOT demo, you don’t have to close out of each device. In fact, one of the ways to check to see if the “show run” of a device has been changed for a problem is to do the show run on the suspected device, abort the question, go to another question and repeat the show run. If the show run is different that time, you know that you have the change in the device is the issue on one of the two tickets.

  49. James warrior
    September 25th, 2011

    can someone tell me, which diagram is used for this ticket?

  50. dhamm
    September 25th, 2011

    @James warrior
    You should be able to use IPv4 L3 topology.

  51. raj
    October 4th, 2011

    Today i am going write the tshoot kindly suggest is this dump is valid

  52. raj
    October 4th, 2011

    today is my day to validate with cisco kindly suggest me

  53. GABRIEL
    October 6th, 2011

    Friends thanks so much for your support, but i will be taking my tshoot at the end of October, so i will be needing you guys support, latest dumps AT or P4S. My email – kalvdomd@yahoo.com
    Thanks

  54. Prada
    November 13th, 2011

    Friends i am planning to taking my tshoot in next week, So i need your help guys, latest dumps to my email – pradeepmurali@ymail.com
    Thanks

  55. katanaman
    November 18th, 2011

    I have passed ROUTE and SWITCH exams, both with over 930 but I failed the TSHOOT exam today when I sat it. I scored only 725 points on my first attempt. :-/

    I had a lot of trouble tickets in my particular exam that concentrated on the network topology between R4 and Client 1 only receiving a 169.x.x.x IP address. This surprised me. I had expected more routing issues than switching and DHCP related issues.

    I think I failed partly due to not checking R4′s DHCP config for the questions where Client 1 is only given a 169.X.X.X IP address. I think I must have concentrated too much on checking the other issues. Trunking, Etherchannel, VLAN’s, port security etc.

    The other issue is I expected to see ASW1′s VLAN 10 have two ip-helper addresses configured. i.e. 10.1.4.5 and 10.1.4.9 but I could not see them configured anywhere on ASW1. Can anyone shed any light on the ip-helper address config?

    I had 13 trouble tickets in my exam and I think there was about a couple of drag and drop questions also. I had about 16 minutes remaining when I completed the exam.

    In one of the trouble tickets DSW1′s EIGRP routing was set up something like..
    router eigrp 10
    network 10.2.4.13 255.255.255.255
    network 10.1.4.6 255.255.255.255

    I would have expected something more like..
    router eigrp 10
    network 10.2.4.12 255.255.255.252
    network 10.1.4.4 255.255.255.252

    i.e specitying the network rather than the exit interfaces IP address. Can anyone confirm if specifying the exit interface is a workable way of configuring this?

    I plan to go over mainly the DHCP and switching stuff again and have another go at the TSHOOT exam in a couple of weeks. It’s only money. LOL

    Cheers

  56. hcane
    November 22nd, 2011

    katanaman,

    there should not be an ip-helper command on ASW1, as that switch is in the same broadcast domain as the clients. the broadcast domain ends at DSW1 at the layer 3 interface. this is where the ip-helper command would go.

    I.E
    interface f1/0/1
    ip address 10.1.4.6 255.255.255.252
    ip helper-address 10.1.4.5

    also, the wildcard mask for your eigrp is incorrect. it should be:

    network 10.2.4.12 0.0.0.3
    network 10.1.4.4 0.0.0.3

    or maybe
    network 10.0.0.0

  57. Bilal Al-Masri
    November 27th, 2011

    Today, I have passed TSHOOT with full mark Alhamdulleah (thanks for GOD). All the dumps are valid.

    13 TT (EIGRP AS ticket is not in the exam).

    All 13 TT is the same.

  58. chirouter
    December 8th, 2011

    Passed today. Wasn’t easy. all TT’s are basically “client 1 can’t reach webserver”. you don’t get much more information than that except the topology of course.

    You really need to have an overall concept of how things interconnect and where potential problems might be. I had trouble with that at first but this site helped me through it. I agree with others that pinging from client 1 to furthest point is best way to isolate where problem could be.

    Site is very valid and helpful.

    13 TT 3MCQ 1DD

  59. nogo
    December 9th, 2011

    Took the test yesterday and failed with a 780. Needed a 790. HSRP keyword was missing. Everything else was there. I was very familiar with the test and I was surprised I failed. I was sure I’d gotten everything correct. The last two tickets I aborted about 4 times each so I could go back and forth and check configs. Not sure if that took off points or I missed something without realizing it. I’ll study for another week or two and try again. Good luck!

  60. Teto 5/12/2011
    December 10th, 2011

    Hi Guys , Is ticket Dhcp in layer 3 or layer 2 ?????? Please I need help

  61. Zizco
    December 10th, 2011

    What are the other symptoms on this ticket? Are the switches configured with static IP or with DHCP? If are are on DHCP, do they receive IPs or not? I am trying to find out if I would be able to ping at all in this question

  62. Shikima
    December 12th, 2011

    There are some TT that you are not to be able to ping anything cause you no get any IP (169.x.x.x), so check for the first router for the DHCP, in this ticket, cause there are another TT that are the same symptoms but you need to check the interfaces status err-disable, or correct vlan.

  63. Aleemuddin
    December 29th, 2011

    Alhumdullilah I have passed my exam with score 945. Thanks to Allah and network tut.

    aleemyousuf@gmail.com

  64. Belal
    January 8th, 2012

    Passed my TShoot Exam on 5th January, 2012 with 1000/1000, Allhamdulilah.
    “Networktut” website and my brother Sohaib Fouzi helped me to prepare this exam, thanks for both of you.
    All TTs are still valid and same as mentioned under “networktut”. I got multiple choices and 13 TTs. Except EIGRP AS all TTs came. In All TTS Client1 will have valid IPs (except 4 TTs of 169.x.x.x).
    I did my complete exam using only “ipconfig”, “ping” and “show run” commands and never felt to use any other command. One thing is very important that you should have complete understandings of TTs other wise you will not able to understand 2 or 3 TTs because Cisco made very minor changes in mulitple choices or in configuration. The IP scheme between R4, DSW1 and DSW2 is 10.1.4.x.
    When i entered in LAB, before starting my exam i wrote the below lines on the provided sheet and then it became very easy to solve the TTs. To solve the TTs i followed the following scheme and order: (remember to use “ipconfig” and “ping” always in Client1 for all TTs)

    ->> If it is 169.x.x.x there are 4-TTs
    1.ASW1 – port security (show-run ASW1 if 1/0/1 and 1/0/2 are in Vlan10, apply sh int for both)
    2.ASW1 – access vlan 10 (show-run and check ASW1 if 1/0/1 and 1/0/2 are in Vlan1, if they are… stop!)
    3.ASW1 – switch-to-switch (show-run ASW1)
    4.R4 – DHCP excluded (show-run R4)
    ——————————————————————-

    ->> If client got IP address then 2 options:

    -First, if client1 can ping 10.1.1.1 not to server 209.65.200.241 (3TT) ALL IN R1
    1.R1 – NAT (10.2.0.0) (show-run R1)(sh ip BGP summary)
    2.R1 – BGP (56-65) (show-run R1)(sh ip BGP summary)
    3.R1 – ACL (show-run R1)(sh ip BGP summary)

    -Second , Client can’t ping 10.1.1.1 but it can ping to 10.1.1.2) then: (1TT)
    4-R1 – OSPF authentication (show-run R1 + R2)

    -Thirdly, if client1 cannot ping 10.1.1.1, then (4 TTs)
    1. DSW1(ASW1) – vlan access map(vlan acl port) *** this one cannot ping even gateway (Check vlan-filter command, which contain vlan access-map, this contain access-list no., now check access-list no. It can drop the packet for PC conntected to ASW1.)
    2. R4 – Route redistribution: (show-run R4)(EIGRP->OSPF is created and EIGRP-TO-OSPF is used)
    3. R4 – EIGRP Passive Interface: passive interface (show-run R4)(sh IP protocols )
    4-R4-EIGRP AS: AS number of EIGRP is different is used To verify – show IP protocols.
    ——————————————————————-

    ->> Finally, there are 2 distinct TTs,
    - HSRP on DSW1: Check DSW1 Use track 10 instead of track 1 (show run) and this is the only question you will see tracking.
    - OSPF IPv6 on R2: On serial interface use area 0, not area 12 (show run), you will recognize this TT by reading ticket because it is the only TT which says about IPv6.

    Note: The above scheme i copied from one comment under “networktut”, i dont remember the name. Sory to mention under my comments but it was just to help others. Please feel free for any query, my email address belal_fouzi@yahoo.com

  65. Jack
    January 30th, 2012

    Hi there!
    If possible please share the Dump of TSHOOT to this mail please and thanks a lot ! Indy2004@inbox.com

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