Cara Ngitung SUBNET

 
SUBNET

192      .168   .10.      0/26

1111111.1111111.1111111.11000000

1. Network / Subnet = 2x = 4 network / subnet

2. Host = 2y-2 = 2⁶-2 = 64-2 = 62host

3.Blok Subnet = 256-netmask 256-192 =64

Network /Subnet	0	64	128	192
HOST	1-62	65-126	129-190	193-254
Broadcast	63	127	191	255

Diket 30 Host 192.168.50.0

Ditanta berpa prefix ?

Jawab  host        =              2y-2 

                         32 =               2y

                        Y    =               5        = 32      

                       8 – 5 = 3 x = 3 soalnya kan ada 8 11111111 kalau ynya 5 berarti 1nya 3

	128	64	32	16	8	4	2	1
Y=	7	6	5	4	3	2	1	0

Contoh Soal

2. Berapa prefix dari IP 192.168.25.0/ jika mempunyai 126 host

Jawab : host = 126 +2 =128 (rumus nyari host 2y-2=host)

                          = 128 (punya 0 = 7)

                        8 - 7 = 1  x = 1  = 11111111.11111111.11111111.10000000/25

172.16.10.0/18

11111111.1111111.11000000.0000000

255.255.192.0

1. Network / Subnet 2x = 2² =4 subnet

2. Host 2y-2 =2pangkat14-2

                         = 16384-2

                         = 16382 host

3. Blok Subnet = 256-192 = 64

Subnet	0.0	64.0	128.0	192.0
HOST	0.1-63.254	64.254	128.254	192.254
Broadcast	63.255	127.255	191.255	255.255