Subnetting

IP Class C

150.100.20.100/26

11111111.11111111.11111111.11000000

255.255.255.192

Cara Mengerjakan :

IP = /26 = 64

Mask = 256 - 64 = 192 ==> 255.255.255.192

Network = 1. 0 – 63

2. 64 -127

3. 128 – 191

100 : 64 = 1.5625

1 x 64 = 64

Broadcast = IP = 64 + N = 64 = 128 – 1 = 127

Host = (64 s/d 127) = 64 + 1 = 65

150.100.20.65 s/d 150.100.20.126

127 – 1 = 126

IP Class B

150.150.150.150/17

11111111.11111111.10000000.00000000

255.255.128.0

Cara Mengerjakan :

IP = /17 + 8 = 25

/25 = 128 x 256 = 32768

Mask = 256 – 128 = 128

Network = 150 : 128 = 1.171875

1 x 128 = 128

Broadcast = IP + N - 1

= 128 + 128 -1

= 255

Host = (128 s/d 255) = 128 + 1 = 129

150.150.129.0 s/d 150.150.255.254

225 – 1 = 254

IP Class A

10.10.10.10/11

11111111.11100000.00000000.00000000

255.224.0.0

Cara Mengerjakan :

IP = 11 + 8 + 8 = 27

/27 = 32 x 256 x 256 = 2,097,152

Mask = 256 – 32 = 224

Network = 10 : 224 = 0.0446

0 x 224 = 0

Broadcast = IP + N – 1

= 32 + 0 -1

= 31

Host = (0 s/d 31) 10.0.0.1 s/d 10.30.255.255