IP Address 192.168.1.0/29 - untuk subnet ke 31

🔹 Analisis Subnet ke-31 — 192.168.1.240/29

Langkah 1: Analisa IP Address

• IP Address : 192.168.1.240

• Kelas : Class C

• CIDR : /29

• Subnet Mask : 11111111.11111111.11111111.11111000

• Desimal : 255.255.255.248

Langkah 2: Penghitungan

1️⃣ Jumlah Subnet
Rumus: 2^x, di mana x = bit yang dipinjam dari host.
Kelas C = /24 → pinjam 5 bit → /29
→ Jumlah Subnet = 2⁵ = 32 Subnet

2️⃣ Jumlah Host per Subnet
Rumus: 2^y – 2, y = bit host
/29 → 3 bit host → 2³ – 2 = 6 host

3️⃣ Blok Subnet
Rumus: 256 – nilai oktet terakhir subnet mask
256 – 248 = 8
Artinya, tiap subnet naik kelipatan 8.

4️⃣ Alamat Host & Broadcast

• Host pertama = subnet + 1

• Host terakhir = sebelum broadcast

• Broadcast = subnet berikutnya – 1

📘 Tabel Pembagian Subnet IP 192.168.1.0/29

No	Subnet	Host Pertama	Host Terakhir	Broadcast
1	192.168.1.0	192.168.1.1	192.168.1.6	192.168.1.7
2	192.168.1.8	192.168.1.9	192.168.1.14	192.168.1.15
3	192.168.1.16	192.168.1.17	192.168.1.22	192.168.1.23
4	192.168.1.24	192.168.1.25	192.168.1.30	192.168.1.31
5	192.168.1.32	192.168.1.33	192.168.1.38	192.168.1.39
6	192.168.1.40	192.168.1.41	192.168.1.46	192.168.1.47
7	192.168.1.48	192.168.1.49	192.168.1.54	192.168.1.55
8	192.168.1.56	192.168.1.57	192.168.1.62	192.168.1.63
9	192.168.1.64	192.168.1.65	192.168.1.70	192.168.1.71
10	192.168.1.72	192.168.1.73	192.168.1.78	192.168.1.79
11	192.168.1.80	192.168.1.81	192.168.1.86	192.168.1.87
12	192.168.1.88	192.168.1.89	192.168.1.94	192.168.1.95
13	192.168.1.96	192.168.1.97	192.168.1.102	192.168.1.103
14	192.168.1.104	192.168.1.105	192.168.1.110	192.168.1.111
15	192.168.1.112	192.168.1.113	192.168.1.118	192.168.1.119
16	192.168.1.120	192.168.1.121	192.168.1.126	192.168.1.127
17	192.168.1.128	192.168.1.129	192.168.1.134	192.168.1.135
18	192.168.1.136	192.168.1.137	192.168.1.142	192.168.1.143
19	192.168.1.144	192.168.1.145	192.168.1.150	192.168.1.151
20	192.168.1.152	192.168.1.153	192.168.1.158	192.168.1.159
21	192.168.1.160	192.168.1.161	192.168.1.166	192.168.1.167
22	192.168.1.168	192.168.1.169	192.168.1.174	192.168.1.175
23	192.168.1.176	192.168.1.177	192.168.1.182	192.168.1.183
24	192.168.1.184	192.168.1.185	192.168.1.190	192.168.1.191
25	192.168.1.192	192.168.1.193	192.168.1.198	192.168.1.199
26	192.168.1.200	192.168.1.201	192.168.1.206	192.168.1.207
27	192.168.1.208	192.168.1.209	192.168.1.214	192.168.1.215
28	192.168.1.216	192.168.1.217	192.168.1.222	192.168.1.223
29	192.168.1.224	192.168.1.225	192.168.1.230	192.168.1.231
30	192.168.1.232	192.168.1.233	192.168.1.238	192.168.1.239
🔴 31	🔴 192.168.1.240	🔴 192.168.1.241	🔴 192.168.1.246	🔴 192.168.1.247
32	192.168.1.248	192.168.1.249	192.168.1.254	192.168.1.255

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💬 Kesimpulan:

• Total subnet: 32 subnet (/29 dari Class C /24)

• Tiap subnet punya 6 host valid dan 1 broadcast

• Blok size = 8 → subnet naik per kelipatan 8 pada oktet terakhir

• Subnet ke-31 (192.168.1.240/29) ditandai warna merah 🔴

  • Host range: 192.168.1.241 – 192.168.1.246

  • Broadcast: 192.168.1.247