Маски сети IPv4 CIDR

IPv4 CIDR
IP/маска До последнего IP

в подсети

Маска Количество адресов Класс
a.b.c.d/32 +0.0.0.0 255.255.255.255 1 1/256 C
a.b.c.d/31 +0.0.0.1 255.255.255.254 2 1/128 C
a.b.c.d/30 +0.0.0.3 255.255.255.252 4 1/64 C
a.b.c.d/29 +0.0.0.7 255.255.255.248 8 1/32 C
a.b.c.d/28 +0.0.0.15 255.255.255.240 16 1/16 C
a.b.c.d/27 +0.0.0.31 255.255.255.224 32 1/8 C
a.b.c.d/26 +0.0.0.63 255.255.255.192 64 1/4 C
a.b.c.d/25 +0.0.0.127 255.255.255.128 128 1/2 C
a.b.c.0/24 +0.0.0.255 255.255.255.000 256 1 C
a.b.c.0/23 +0.0.1.255 255.255.254.000 512 2 C
a.b.c.0/22 +0.0.3.255 255.255.252.000 1024 4 C
a.b.c.0/21 +0.0.7.255 255.255.248.000 2048 8 C
a.b.c.0/20 +0.0.15.255 255.255.240.000 4096 16 C
a.b.c.0/19 +0.0.31.255 255.255.224.000 8192 32 C
a.b.c.0/18 +0.0.63.255 255.255.192.000 16 384 64 C
a.b.c.0/17 +0.0.127.255 255.255.128.000 32 768 128 C
a.b.0.0/16 +0.0.255.255 255.255.000.000 65 536 256 C = 1 B
a.b.0.0/15 +0.1.255.255 255.254.000.000 131 072 2 B
a.b.0.0/14 +0.3.255.255 255.252.000.000 262 144 4 B
a.b.0.0/13 +0.7.255.255 255.248.000.000 524 288 8 B
a.b.0.0/12 +0.15.255.255 255.240.000.000 1 048 576 16 B
a.b.0.0/11 +0.31.255.255 255.224.000.000 2 097 152 32 B
a.b.0.0/10 +0.63.255.255 255.192.000.000 4 194 304 64 B
a.b.0.0/9 +0.127.255.255 255.128.000.000 8 388 608 128 B
a.0.0.0/8 +0.255.255.255 255.000.000.000 16 777 216 256 B = 1 A
a.0.0.0/7 +1.255.255.255 254.000.000.000 33 554 432 2 A
a.0.0.0/6 +3.255.255.255 252.000.000.000 67 108 864 4 A
a.0.0.0/5 +7.255.255.255 248.000.000.000 134 217 728 8 A
a.0.0.0/4 +15.255.255.255 240.000.000.000 268 435 456 16 A
a.0.0.0/3 +31.255.255.255 224.000.000.000 536 870 912 32 A
a.0.0.0/2 +63.255.255.255 192.000.000.000 1 073 741 824 64 A
a.0.0.0/1 +127.255.255.255 128.000.000.000 2 147 483 648 128 A
0.0.0.0/0 +255.255.255.255 000.000.000.000 4 294 967 296 256 A

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