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Subnetting Part 2

Discussion in 'Network Infrastructure' started by zimbo, Jul 26, 2006.

  1. zimbo
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    zimbo Petabyte Poster

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    Right i think i got it... but is this all that it is? Ok if you wondering what im talking about download that doc simon posted a while back from the link below:

    Click Here

    That has been the easiest, simplest explaination i have found in 48 hours of subnetting. Please just tell me thats all its about because if it is you will make me the happiest bugger in cyprus and i can start looking at examples now!

    :biggrin
     
    Certifications: B.Sc, MCDST & MCSA
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  2. simongrahamuk
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    simongrahamuk Hmmmmmmm?

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    That doc certainly helped me. Glad it has helped you too. :biggrin
     
  3. zimbo
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    zimbo Petabyte Poster

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    so thats it? nothing more?:biggrin
     
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  4. zimbo
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    zimbo Petabyte Poster

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    anyone?:cry:
     
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  5. Boycie
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    Boycie Senior Beer Tester

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    i think that's it George... for now :biggrin

    Si
     
    Certifications: MCSA 2003, MCDST, A+, N+, CTT+, MCT
  6. zimbo
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    zimbo Petabyte Poster

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    right so where can i get more pratice questions? learntosubnet.com
     
    Certifications: B.Sc, MCDST & MCSA
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  7. Boycie
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    Boycie Senior Beer Tester

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  8. zimbo
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    zimbo Petabyte Poster

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    no i havent got the cd... if you look at that doc i mentioned the table where all the subnetting is done only has subnets for certain numbers... what if i want 15 subnets or 21 subnets i cant use that table can i?:rolleyes:
     
    Certifications: B.Sc, MCDST & MCSA
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  9. hbroomhall

    hbroomhall Petabyte Poster Gold Member

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    Yes you can - just use the next higher value available.

    And I'm going to upset you by saying that the document you referred to at the start of this thread doesn't cover all the variations. :cry:

    It ignores some of the changes that came in later, where the sub-net numbers *could* be all 0s or all 1s.

    My favourite reference - The TCP/IP Guide has a excellent section, and includes the weirdness that RFC950 allowed, and the later changes made. Plus also references to the fact that subnetting only makes any sense in the Classful case.

    Harry.
     
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  10. Bluerinse
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    Bluerinse Exabyte Poster

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    That is an excellent link Harry and the article explains VLSM (variable length subnet masks) clearer than anything I have previously read - cheers 8)
     
    Certifications: C&G Electronics - MCSA (W2K) MCSE (W2K)
  11. zimbo
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    zimbo Petabyte Poster

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    Ok i have read too many articles and books over the last 3 days and im now totally confused on what i need to know...:rolleyes: i think i have figured out basic subnetting so some progress is starting to show but i would like to ask if someone could look at the objectives or anyone who has an idea and tell me exactly what i should be able to do.

    go easy on the terms please cause the head hurts like crazy here!:biggrin

    Edit: Thanks for the linky Harry looking into VLSM now... the MS press book and sybex book are actually *useless* on these topics and i couldnt believe it!
     
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  12. Boycie
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    Boycie Senior Beer Tester

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    Zim,

    I would suggest a day off subnetting, then make yourself a nice mug of coffee and sit down and listen to the learn to subnet tutorials.

    Si
     
    Certifications: MCSA 2003, MCDST, A+, N+, CTT+, MCT
  13. zimbo
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    zimbo Petabyte Poster

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    listening to them right now with an ice coffee!:biggrin i dont want to fall back because the moral will drop and that could be disaster! Thankfully the next part is DNS and i been wanting to crack open those parts for a long time!

    8)
     
    Certifications: B.Sc, MCDST & MCSA
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  14. Boycie
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    Boycie Senior Beer Tester

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    One of the people involved in our new network design commented he could purely concentrate on troubleshooting DNS issues with businesses he visits!

    Si
     
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  15. hbroomhall

    hbroomhall Petabyte Poster Gold Member

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    Oddly enough - after many months of not having to bother about subnetting at work I am now faced with an *extremely* expensive animal that requires it!

    Other network engineers have been totaly baffled about the docs for this (except for one very clever individual).

    I'm glad for this thread - because it made me reread stuff and so be up-to-speed!

    Harry.
     
    Certifications: ECDL A+ Network+ i-Net+
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