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    Share: Cara Cepet penghitungan Subnetting

    22 Comments by masdhanang Published on 24-10-2010 12:08
    moga2 ga repost en kalo salah tempat tolong pindahin ya bang mood...Click here to enlarge

    nih mas bro ane punya metode penghitungan subnetting dengan cepat. referensi dari blognya pak romi satria wahono sambil diotak-atik sedikit...

    dari pada banyak cerita mendingan langsung dinikmati aj...monggo....Click here to enlarge

    Kunci :
    1. Default Prefik :
    - Kelas A dengan subnetmask 255.0.0.0; atau prefik = /8; atau biner = 11111111.00000000.0000000.0000000
    - Kelas B dengan subnetmask 255.255.0.0; atau prefik = /16; atau biner = 11111111.11111111.0000000.0000000
    - Kelas C dengan subnetmask 255.255.255.0; atau prefik = /24; atau biner = 11111111.11111111.1111111.0000000

    2. Jumlah Subnet :
    2x dimana x adalah jumlah binari 1 pada oktet terakhir atau bisa menggunakan rumus Prefik – Default_Prefik.

    3. Jumlah Host per Subnet :
    2y – 2 dimana y adalah jumlah binari 0 pada oktet terakhir atau bisa menggunakan rumus max_prefik – Prefik.

    4. Blok Subnet :
    Jika Prefik > 24
    Gunakan rumus = 32 – Prefik

    Jika Prefik > 16 < 24
    Gunakan rumus = 24 – Prefik

    Jika Prefik > 8 < 16
    Gunakan rumus = 16 - Prefik


    5. Subnet Mask :
    merupakan blok terakhir dari Blok Subnet. Perhatikan prefiknya,
    jika prefik > dari 24 = 255.255.255.sm*
    jika prefik > dari 16 = 255.255.sm*.0
    jika prefik > dari 8 = 255.sm*.0.0
    *sm = Blok Terakhir dari Blok Subnet

    (Studi Kasus) Penghitungan IP
    1. 202.95.8.0/25
    2. 191.200.10.0/19
    3. 180.20.10.0/25

    Jawaban:
    1. IP Address 202.95.8.0/25
    o Jumlah Subnet :
    X = 25 – 24 = 1 --> 2X = 21 = 2 Subnet

    o Jumlah host per Subnet :
    2y -2
    Y = 32 – 25 = 7 --> 27 – 2 = 128 -2 = 126 Host

    o Blok Subnet :
    *ingat kunci no. 4
    32 – 25 = 7 --> 27 = 128 (blok subnet kelipatan dari 128)
    Blok Subnet = 0,128

    o Subnetmask :
    *ingat kunci no. 5
    Subnetmask = 255.255.255.128

    o Tabel IP :
    HTML Code:
    Subnet                   202.95.8.0*         202.95.8.128*
    Host Pertama             202.95.8.1          202.95.8.129
    Host Terakhir            202.95.8.126	     202.95.8.254
    Broadcast Address        202.95.8.127	     202.95.8.255
    *merupakan blok subnet
    2. IP Address 191.200.10.0/19
    o Jumlah Subnet :
    X = 19 – 16 = 3 --> 2X = 23 = 8 Subnet

    o Jumlah host per Subnet :
    2y -2
    Y = 32 – 19 = 13 --> 213 – 2 = 8192 -2 = 8190 Host

    o Blok Subnet :
    *ingat kunci no. 4
    24 – 19 = 5 --> 25 = 32 (blok subnet kelipatan dari 32)
    Blok Subnet = 0, 32, 64, 96, 128, 160, 192, 224

    o Subnetmask :
    *ingat kunci no. 5
    Subnetmask = 255.255.128.0

    o Tabel IP :
    HTML Code:
    Subnet              191.200.0*.0	191.200.32*.0	191.200.64*.0	...  191.200.224*.0
    Host Pertama        191.200.0.1	        191.200.32.1	191.200.64.1	     191.200.224.1
    Host Terakhir       191.200.31.254	191.200.63.254	191.200.127.254      191.200.255.254
    Broadcast Address   191.200.31.255	191.200.63.255	191.200.127.255	     191.200.255.255
    *merupakan blok subnet

    3. IP Address 180.20.10.0/25
    o Jumlah Subnet :
    X = 25 – 16 = 9 --> 2X = 29 = 512 Subnet

    o Jumlah host per Subnet :
    2y -2
    Y = 32 – 25 = 7 -->27 – 2 = 128 -2 = 126 Host

    o Blok Subnet :
    *ingat kunci no. 4
    32 – 25 = 7 --> 27 = 128
    Blok Subnet = 0, 128

    o Subnetmask :
    *ingat kunci no. 5
    Subnetmask = 255.255.255.128

    o Tabel IP :
    HTML Code:
    Subnet              180.20.10.0 	180.20.10.128	180.20.11.0 	...	180.20.255.128
    Host Pertama        180.20.10.1 	180.20.10.129	180.20.11.1 	...	180.20.255.129
    Host Terakhir       180.20.10.126	180.20.10.254	180.20.11.126	...	180.20.255.254
    Broadcast Address   180.20.10.127	180.20.10.255	180.20.11.127	...	180.20.255.255
    hmmm...akhirnya selese juga...

    untuk bang mod...Click here to enlarge
    • sorri kalo ini repost soale dah saya cari ga ada trit yg seperti ini...
    • kalo misale salah tempat tolong pindahin ya....Click here to enlarge
    • kalo misale kurang rapi tolong dirapiin ya....Click here to enlarge


    untuk para mikrotikers...santap habis bro....Click here to enlarge

  2. The Following 13 Users Say Thank You to masdhanang For This Useful Post:

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  3. Total Comments 22

    Comments

  4. #16
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    nice inpo ....

    ---------- Post added at 13:40 ---------- Previous post was at 13:39 ----------

    terima kasih

  5. #17
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    tiba2 sakit kepala.. Click here to enlarge

  6. #18
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    pengetahuan wajib niy gan... thx...

  7. #19
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    Click here to enlarge Originally Posted by cpubekasdotcom Click here to enlarge
    ini basic nya, perlu di matangin nih, nice share gan, many thx Click here to enlarge
    Mantaffff.. Gan.. Thx.. Click here to enlarge

  8. #20
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    Mantap Gan Infonya, tapi ane masih harus bnyak belajar nih....

    Click here to enlargeClick here to enlarge

  9. #21
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    tiba - tiba ngehank nich gwe.... Click here to enlargeClick here to enlarge
    banyak istilah yg ane blm tahu Click here to enlarge

  10. #22
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    gan itu ada karakter aneh2 apaan seh.. tolong diperjelas dong. susah belajarnya...

  11. #23
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    itu bukan cara cepat, klo mau cepat pakai lan calculator aja.. Click here to enlarge

    judulnya salah gan..

 

 
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