Cara Cepat Perhitungan Subneting | TKJ Lab

Cara Cepat Perhitungan Subneting

Sudah diketahui bahwa untuk nilai /24 - /32 subnetmasknya adalah sebagai berikut: /24 -> 256 - 256 = 255.255.255.0 /25 -> 256 - 128...


Sudah diketahui bahwa untuk nilai /24 - /32 subnetmasknya adalah sebagai berikut:

/24 -> 256 - 256 = 255.255.255.0
/25 -> 256 - 128 = 255.255.255.128
/26 -> 256 - 64 = 255.255.255.192
/27 -> 256 - 32 = 255.255.255.224
/28 -> 256 - 16 = 255.255.255.240
/29 -> 256 - 8 = 255.255.255.248
/30 -> 256 - 4 = 255.255.255.240
/31 -> 256 - 2 = 255.255.255.252
/32 -> 256 - 1 = 255.255.255.255

Studi kasus:


IP = 218.19.160.239/29

Kita ketahui bahwa nilai diatas adalah /29 artinya jumlah IP nya adalah 8, OK

Angka 8 x bla bla bla hasilnya >= 239
8 x ....? >= 239
8 x 29 = 232
8 x 30 = 240

artinya dari perkalian diatas nilai 239 ada diantara 232 dan 240
jadi.

* ip networknya = 218.19.160.232
* ip broadcastnya = 218.19.160.239 --> (240-1)
* first ip = 218.19.160.233
* end ip = 218.19.160.238
* used ip = 6 --> (8-2)

Terima kasih, semoga bermanfaat...


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TKJ Lab: Cara Cepat Perhitungan Subneting
Cara Cepat Perhitungan Subneting
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TKJ Lab
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