128 64 32 16 8 4 2 1 – last (4 ) octet 0 0 0 0 0 0 0 0 = 0 subnets (/24

Οδυσσζας Λεβαντής – Τομεάρχης Πληροφορικής 2ο Ε.Κ. Δ Αθήνας 2013
Υποδικτφωση 4ης (τελευταίας) οκτάδας διεφθυνσης IP
Subnetting 255.255.255.x (11111111. 11111111. 11111111.x)
128 64 32 16 8 4 2 1 – last (4th) octet
0 0 0 0 0 0 0 0 = 0 subnets (/24 0-255 hosts)
1 0 0 0 0 0 0 0 = 2 subnets (/25 0-127 hosts)
1 1 0 0 0 0 0 0 = 4 subnets (/26 0-63 hosts)
1 1 1 0 0 0 0 0 = 8 subnets (/27 0-31 hosts)
1 1 1 1 0 0 0 0 = 16 subnets (/28 0-15 hosts)
1 1 1 1 1 0 0 0 = 32 subnets (/29 0-7 hosts)
1 1 1 1 1 1 0 0 = 64 subnets (/30 0-3 hosts)
1 1 1 1 1 1 1 0 = 128 subnets (/31 0-1 hosts)