IP Address 192.168.1.0/29 – Subnet ke-26

Pembahasan Subnetting

Menentukan Jumlah Subnet

Rumus: Jumlah Subnet = 2^x

Penjelasan: x menunjukkan banyaknya bit yang dipinjam dari bagian host untuk dijadikan subnet.

Pada prefix /29, kita meminjam 5 bit dari host (karena dari /24 ke /29).

Maka, Jumlah Subnet = 2⁵ = 32 subnet.

Menentukan Jumlah Host per Subnet

Rumus: Jumlah Host = 2^y – 2

Keterangan: y adalah jumlah bit yang tersisa untuk host.

Untuk /29, nilai y = 3.

Sehingga, Jumlah Host = 2³ – 2 = 6 host aktif dalam setiap subnet.

Menentukan Besar Blok Subnet

Rumus: Blok = 256 – nilai oktet terakhir subnet mask.

Subnet mask untuk /29 adalah 255.255.255.248.

Jadi, Blok = 256 – 248 = 8.

Artinya, setiap subnet akan meloncat sebanyak 8 alamat (0, 8, 16, 24, 32, 40, dan seterusnya).

Alamat Penting dalam Subnet

• Alamat network = kelipatan blok yang paling besar namun ≤ alamat IP dasar.
• Alamat host pertama = network + 1
• Alamat host terakhir = broadcast – 1
• Alamat broadcast = alamat network subnet berikutnya – 1

SUBNETTING PADA IP ADDRESS CLASS C (/29)

Diketahui:

IP Address : 192.168.1.0/29

11111111.11111111.11111111.11111000
255  255  255  248
Subnet Mask : 255.255.255.248
  

Perhitungan:

• Jumlah Subnet = 2⁵ = 32 subnet
• Jumlah Host per Subnet = 2³ – 2 = 6 host
• Blok Subnet = 256 – 248 = 8
• Subnet lengkapnya = 0, 8, 16, 24, 32, 40, 48, 56, 64, dst

Daftar Lengkap 32 Subnet /29 di 192.168.1.0/24

Tabel Subnet /29

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