Netmasks

Notation Adressen Nutzbare
Host-Adressen
Subnetzmaske
dezimal
Subnetzmaske
binär
Kommentar
/0 4.294.967.296 - 0.0.0.0 00000000.00000000.00000000.00000000 Vollständiger IPv4-Adressraum
/1 2.147.483.648 - 128.0.0.0 10000000.00000000.00000000.00000000
/2 1.073.741.824 - 192.0.0.0 11000000.00000000.00000000.00000000
/3 536.870.912 - 224.0.0.0 11100000.00000000.00000000.00000000
/4 268.435.456 - 240.0.0.0 11110000.00000000.00000000.00000000
/5 134.217.728 - 248.0.0.0 11111000.00000000.00000000.00000000
/6 67.108.864 - 252.0.0.0 11111100.00000000.00000000.00000000
/7 33.554.432 - 254.0.0.0 11111110.00000000.00000000.00000000
/8 16.777.216 16.777.214 255.0.0.0 11111111.00000000.00000000.00000000 „Class A“-Grösse
/9 8.388.608 8.388.606 255.128.0.0 11111111.10000000.00000000.00000000
/10 4.194.304 4.194.302 255.192.0.0 11111111.11000000.00000000.00000000
/11 2.097.152 2.097.150 255.224.0.0 11111111.11100000.00000000.00000000
/12 1.048.576 1.048.574 255.240.0.0 11111111.11110000.00000000.00000000
/13 524.288 524.286 255.248.0.0 11111111.11111000.00000000.00000000
/14 262.144 262.142 255.252.0.0 11111111.11111100.00000000.00000000
/15 131.072 131.070 255.254.0.0 11111111.11111110.00000000.00000000
/16 65.536 65.534 255.255.0.0 11111111.11111111.00000000.00000000 „Class B“-Grösse
/17 32.768 32.766 255.255.128.0 11111111.11111111.10000000.00000000
/18 16.384 16.382 255.255.192.0 11111111.11111111.11000000.00000000
/19 8.192 8.190 255.255.224.0 11111111.11111111.11100000.00000000
/20 4.096 4.094 255.255.240.0 11111111.11111111.11110000.00000000
/21 2.048 2.046 255.255.248.0 11111111.11111111.11111000.00000000
/22 1.024 1.022 255.255.252.0 11111111.11111111.11111100.00000000
/23 512 510 255.255.254.0 11111111.11111111.11111110.00000000
/24 256 254 255.255.255.0 11111111.11111111.11111111.00000000 „Class C“-Grösse
/25 128 126 255.255.255.128 11111111.11111111.11111111.10000000
/26 64 62 255.255.255.192 11111111.11111111.11111111.11000000
/27 32 30 255.255.255.224 11111111.11111111.11111111.11100000
/28 16 14 255.255.255.240 11111111.11111111.11111111.11110000
/29 8 6 255.255.255.248 11111111.11111111.11111111.11111000
/30 4 2 255.255.255.252 11111111.11111111.11111111.11111100 Verbindungsnetz zwischen zwei Routern
/31 2 0 (2) 255.255.255.254 11111111.11111111.11111111.11111110 Verbindungsnetz zwischen zwei Routern
/32 1 0 (1) 255.255.255.255 11111111.11111111.11111111.11111111 einzelner Host