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subnetting

Discussion in 'Network Infrastructure' started by Becki, Nov 21, 2008.

  1. Becki

    Becki Byte Poster

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    Hiya,

    As in my more recent posts i am undertaking my 291 exam in the next few months, and one thing i have never been able to get my head around is subnetting, even when studying Network+!

    As 291 looms in the very near future i feel that i now must understand this infavourable subject of mine, no matter how long it takes.

    I would appreciate if anyone could explain this to me simply as possible​

    Thanks,
    Becki
     
    Certifications: NVQ IC3 A+ Network+ MCDST MCITP MCTS Vista & 7
  2. Qs

    Qs Semi-Honorary Member Gold Member

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    You're worrying about nothing. Just sit down and do practice examples until you've got it nailed.

    Some sites which may help:-

    http://www.troutman.org/tech/linux_guides/subnet.html

    http://www.learntosubnet.com/

    Else use google - search "how to subnet"

    Finally, use the similar threads function on the forum or do a forum search for "subnetting" - there are many wise words out there!

    If you've got any specific questions which you don't understand, then by all means we will help, but your question is a bit wishy washy at the moment.

    Hope this helps. :)

    Qs
     
    Certifications: MCT, MCSE: Private Cloud, MCSA (2008), MCITP: EA, MCITP: SA, MCSE: 2003, MCSA: 2003, MCITP: EDA7, MCITP: EDST7, MCITP: EST Vista, MCTS: Exh 2010, MCTS:ServerVirt, MCTS: SCCM07 & SCCM2012, MCTS: SCOM07, MCTS: Win7Conf, MCTS: VistaConf, MCDST, MCP, MBCS, HND: Applied IT, ITIL v3: Foundation, CCA
  3. grim

    grim Gigabyte Poster

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    There's subnetting on the 70-291...i don't remember that :confused2

    Grim
     
    Certifications: Bsc, 70-270, 70-290, 70-291, 70-293, 70-294, 70-298, 70-299, 70-620, 70-649, 70-680
    WIP: 70-646, 70-640
  4. Qs

    Qs Semi-Honorary Member Gold Member

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    Certifications: MCT, MCSE: Private Cloud, MCSA (2008), MCITP: EA, MCITP: SA, MCSE: 2003, MCSA: 2003, MCITP: EDA7, MCITP: EDST7, MCITP: EST Vista, MCTS: Exh 2010, MCTS:ServerVirt, MCTS: SCCM07 & SCCM2012, MCTS: SCOM07, MCTS: Win7Conf, MCTS: VistaConf, MCDST, MCP, MBCS, HND: Applied IT, ITIL v3: Foundation, CCA
  5. grim

    grim Gigabyte Poster

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    Certifications: Bsc, 70-270, 70-290, 70-291, 70-293, 70-294, 70-298, 70-299, 70-620, 70-649, 70-680
    WIP: 70-646, 70-640
  6. greenbrucelee
    Highly Decorated Member Award

    greenbrucelee Zettabyte Poster

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    I am getting my head around it too. I can do it to a certain extent, if I have a pen and piece of paper to write it down but can't do it all the time in my head yet.
     
    Certifications: A+, N+, MCDST, Security+, 70-270
    WIP: 70-620 or 70-680?
  7. grim

    grim Gigabyte Poster

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    i've read endless guides and watched so many vids.

    I now understand how it works, i'm just trying to make it a natural process i could do in my head :)

    Grim
     
    Certifications: Bsc, 70-270, 70-290, 70-291, 70-293, 70-294, 70-298, 70-299, 70-620, 70-649, 70-680
    WIP: 70-646, 70-640
  8. Qs

    Qs Semi-Honorary Member Gold Member

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    That's what makes it invaluable - when you're able to subnet without a pen and paper. :)
     
    Certifications: MCT, MCSE: Private Cloud, MCSA (2008), MCITP: EA, MCITP: SA, MCSE: 2003, MCSA: 2003, MCITP: EDA7, MCITP: EDST7, MCITP: EST Vista, MCTS: Exh 2010, MCTS:ServerVirt, MCTS: SCCM07 & SCCM2012, MCTS: SCOM07, MCTS: Win7Conf, MCTS: VistaConf, MCDST, MCP, MBCS, HND: Applied IT, ITIL v3: Foundation, CCA
  9. greenbrucelee
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    greenbrucelee Zettabyte Poster

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    it is a bit of a head bender.
     
    Certifications: A+, N+, MCDST, Security+, 70-270
    WIP: 70-620 or 70-680?
  10. craigie

    craigie Terabyte Poster

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    Takes a whilte to learn it, however once you have it, you have it for life.

    I can do most of the calculations in my head, however it does take me quite along time.

    Best advice, as what other people have mentioned is to keep going over it and over it. I found that after a days break on the subject it all just suddenly clicked :D
     
    Certifications: CCA | CCENT | CCNA | CCNA:S | HP APC | HP ASE | ITILv3 | MCP | MCDST | MCITP: EA | MCTS:Vista | MCTS:Exch '07 | MCSA 2003 | MCSA:M 2003 | MCSA 2008 | MCSE | VCP5-DT | VCP4-DCV | VCP5-DCV | VCAP5-DCA | VCAP5-DCD | VMTSP | VTSP 4 | VTSP 5
  11. grim

    grim Gigabyte Poster

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    is it true subnetting is the hardest part of the CCNA ?

    GRim
     
    Certifications: Bsc, 70-270, 70-290, 70-291, 70-293, 70-294, 70-298, 70-299, 70-620, 70-649, 70-680
    WIP: 70-646, 70-640
  12. greenbrucelee
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    greenbrucelee Zettabyte Poster

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    My problem is that I am crap at maths anyway, I had to do extra maths whilst doing my HND as it was so poor.
     
    Certifications: A+, N+, MCDST, Security+, 70-270
    WIP: 70-620 or 70-680?
  13. Obinna Osobalu

    Obinna Osobalu Banned

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    If you can pick up the CCNA fastpass e -book or CCNA exam study guide(exam 640-802) 6th edition both by Todd Lammle, Subnetting is totally broken down there than in the MSpress 70-291 self training kit material. Used the material myself to understand subnetting..​
     
    Certifications: MCITP:SA,MCTS(x5),MCSE2K3;MCSA2K3:M;MCP
    WIP: EDA7,70-652,Project+,MSP(70-632)
  14. Qs

    Qs Semi-Honorary Member Gold Member

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    Depends how quickly you get to grips with the process, but yeah, I'd say it's up there.

    Qs
     
    Certifications: MCT, MCSE: Private Cloud, MCSA (2008), MCITP: EA, MCITP: SA, MCSE: 2003, MCSA: 2003, MCITP: EDA7, MCITP: EDST7, MCITP: EST Vista, MCTS: Exh 2010, MCTS:ServerVirt, MCTS: SCCM07 & SCCM2012, MCTS: SCOM07, MCTS: Win7Conf, MCTS: VistaConf, MCDST, MCP, MBCS, HND: Applied IT, ITIL v3: Foundation, CCA
  15. grim

    grim Gigabyte Poster

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    sweet, i'm already nearly at the end of CCENT ICND1 and picking it up fairly quickly. Should have the CCENT ICND2 coming soon. IOS reference guide turned up this morning :)




    never seen ident used before​

    GRim
     
    Certifications: Bsc, 70-270, 70-290, 70-291, 70-293, 70-294, 70-298, 70-299, 70-620, 70-649, 70-680
    WIP: 70-646, 70-640
  16. BosonMichael
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    BosonMichael Yottabyte Poster

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    Ab-so-lutely.

    Learn it well, because you'll never, ever, ever escape from subnetting. It'll come up again and again in exams.
     
    Certifications: CISSP, MCSE+I, MCSE: Security, MCSE: Messaging, MCDST, MCDBA, MCTS, OCP, CCNP, CCDP, CCNA Security, CCNA Voice, CNE, SCSA, Security+, Linux+, Server+, Network+, A+
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  17. BosonMichael
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    BosonMichael Yottabyte Poster

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    No; time management is the hardest part of the CCNA. That said, you can make the best use of your time by learning how to subnet in your head. The other difficult thing is getting real-world experience with Cisco gear... you can't expect to answer the questions well without being intimately familiar with the IOS.
     
    Certifications: CISSP, MCSE+I, MCSE: Security, MCSE: Messaging, MCDST, MCDBA, MCTS, OCP, CCNP, CCDP, CCNA Security, CCNA Voice, CNE, SCSA, Security+, Linux+, Server+, Network+, A+
    WIP: Just about everything!
  18. BosonMichael
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    BosonMichael Yottabyte Poster

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    If you can double 2 up to 256 (or, in rarer cases, up to 65536), you can do subnetting.

    2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536

    Adding combinations of these numbers covers the basics for converting binary to decimal. This ain't calculus!!!
     
    Certifications: CISSP, MCSE+I, MCSE: Security, MCSE: Messaging, MCDST, MCDBA, MCTS, OCP, CCNP, CCDP, CCNA Security, CCNA Voice, CNE, SCSA, Security+, Linux+, Server+, Network+, A+
    WIP: Just about everything!
  19. greenbrucelee
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    greenbrucelee Zettabyte Poster

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    Yep can do that, it's doing it where it doesn't look like I am sstruggling. It's when I get to really high numbers I get a bit flustered.
     
    Certifications: A+, N+, MCDST, Security+, 70-270
    WIP: 70-620 or 70-680?
  20. VSARAHMAN

    VSARAHMAN New Member

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    Is there any MCSE tutorials or vids to download....pls help me
     
    Certifications: BTEC HND in IT.UK,AMBCS.UK,A+,CCNA,MCP
    WIP: MCSE

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