Perhitungan SUBNETTING !!
Hitung subnet untuk alamat 50.75.100.125/13
jawab:
1. dilihat dari oktaf pertama dari IP Address yang diberikan yaitu 50, maka termasuk kelas A.
2. subnet address adalah 50.0.0.0 network prefix : /13
11111111.11111000.00000000.0000000
subnet mask : 255.248.0.0
128+64+32+16+8 = 248
3. jumlah subnet : 2³ - 2 = 30
4. jumlah host/subnet : 2¹³ - 2 = 524288 – 2 = 524286
5. range area IP Address yang bisa digunakan (valid) adalah : 256 – 248 = 8, sehingga dapat dibuat tabel sebagai berikut :
| Subnet | IP Address | Broadcast |
| 50.0.0.0
50.8.0.0
50.16.0.0
50.24.0.0
50.32.0.0
50.40.0.0
50.48.0.0
50.56.0.0
50.64.0.0
50.72.0.0
50.80.0.0
50.88.0.0
50.96.0.0
50.104.0.0
50.112.0.0
50.120.0.0
50.128.0.0
50.136.0.0
50.144.0.0
50.152.0.0
50.160.0.0
50.168.0.0
50.176.0.0
50.184.0.0
50.192.0.0
50.200.0.0
50.208.0.0
50.216.0.0
50.224.0.0
50.232.0.0
50.240.0.0
50.248.0.0 | 50.0.0.1-50.7.0.254
50.8.0.1-50.15.0.254
50.16.0.1-50.23.0.254
50.24.0.1-50.31.0.254
50.32.0.1-50.39.0.254
50.40.0.1-50.47.0.254
50.48.0.1-50.55.0.254
50.56.0.1-50.63.0.254
50.64.0.1-50.71.0.254
50.72.0.1-50.79.0.254
50.80.0.1-50.87.0.254
50.88.0.1-50.95.0.254
50.96.0.1-50.103.0.254
50.104.0.1-50.111.0.254
50.112.0.1-50.119.0.254
50.120.0.1-50.127.0.254
50.128.0.1-50.135.0.254
50.136.0.1-50.143.0.254
50.144.0.1-50.151.0.254
50.152.0.1-50.159.0.254
50.160.0.1-50.167.0.254
50.168.0.1-50.175.0.254
50.176.0.1-50.183.0.254
50.184.0.1-50.191.0.254
50.192.0.1-50.199.0.254
50.200.0.1-50.207.0.254
50.208.0.1-50.215.0.254
50.216.0.1-50.223.0.254
50.224.0.1-50.231.0.254
50.232.0.1-50.239.0.254
50.240.0.1-50.247.0.254 | 50.7.0.255
50.15.0.255
50.23.0.255
50.31.0.255
50.39.0.255
50.47.0.255
50.55.0.255
50.63.0.255
50.71.0.255
50.79.0.255
50.87.0.255
50.95.0.255
50.103.0.255
50.111.0.255
50.119.0.255
50.127.0.255
50.135.0.255
50.143.0.255
50.151.0.255
50.159.0.255
50.167.0.255
50.175.0.255
50.183.0.255
50.191.0.255
50.199.0.255
50.207.0.255
50.215.0.255
50.223.0.255
50.231.0.255
50.239.0.255
50.247.0.255 |
6. kelompok Address yang valid dimulai dari 50.8.0.1 sampai dengan 50.247.0.254. Jadi, alamat 50.75.100.125/13 berada dikelompok subnet 50.72.0.0.
7. broadcast Address : 50.79.0.255
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