Cara Menghitung IP versi 3
address 172.16.0.0/25.
Analisa: 172.16.0.0 berarti kelas B, dengan Subnet Mask /25 berarti 11111111.11111111.11111111.10000000 (255.255.255.128).
Penghitungan:
- Jumlah Subnet = 29 = 512 subnet
- Jumlah Host per Subnet = 27 – 2 = 126 host
- Blok Subnet = 256 – 128 = 128. Jadi lengkapnya adalah (0, 128)
- Alamat host dan broadcast yang valid?
| Subnet | 172.16.0.0 | 172.16.0.128 | 172.16.1.0 | … | 172.16.255.128 |
| Host Pertama | 172.16.0.1 | 172.16.0.129 | 172.16.1.1 | … | 172.16.255.129 |
| Host Terakhir | 172.16.0.126 | 172.16.0.254 | 172.16.1.126 | … | 172.16.255.254 |
| Broadcast | 172.16.0.127 | 172.16.0.255 | 172.16.1.127 | … | 172.16.255.255 |
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