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IPv4 architettura

Class IP range 1° Ottetto Default Subnet Mask Network / Host Network Possibli Indirizzi usabili
A 0 - 127 255.0.0.0 Net.Host.Host.Host 2^7 = 128 2^24-2 = 16.777.214
B 128 - 191 255.255.0.0 Net.Net.Host.Host 2^14 = 16.384 2^16-2 = 65.534
C 192 - 223 255.255.255.0 Net.Net.Net.Host 2^21 = 2.097.151 2^9-2 = 254
D 224 - 239 N/A N/A N/A N/A
E 240 - 255 N/A N/A N/A N/A

Indirizzi Privati

Class Start range End range
A 10.0.0.0 10.255.255.255
B 172.16.0.0 172.31.255.255
C 192.168.0.0 192.168.255.255

Subnetting

Type Decimale Binario
Class A 255.0.0.0 11111111.00000000.00000000.00000000
Class B 255.255.0.0 11111111.11111111.00000000.00000000
Class C 255.255.255.0 11111111.11111111.11111111.00000000

Conversione Decimale-Binario

128 64 32 16 8 4 2 1 Decimale
1 1 1 0 0 0 0 0 224
1 0 1 0 1 0 1 0 170
0 1 0 1 0 1 0 1 85