CIDR 변환 표
CIDR 길이 | 마스크 | # 네트워크 | # 호스트 | / 1 | 128.0.0.0 | 128 | 2147483392 | / 2 | 192.0.0.0 | 64 | 1073741696 | / 3 | 224.0.0.0 | 32 | 536,870,848 | / 4 | 240.0.0.0 | 16 | 268,435,424 | / 5 | 248.0.0.0 | 8 | 134,217,712 | / 6 | 252.0.0.0 | 4 | 67108856 | / 7 | 254.0.0.0 | 2 | 33554428 | / 8 | 255.0.0.0 | 일 | 16777214 | / 9 | 255.128.0.0 | 128 B | 8,388,352 | / 10 | 255.192.0.0 | 64 B | 4,194,176 | / 11 | 255.224.0.0 | 32 B | 2,097,088 | / 12 | 255.240.0.0 | 16 B | 1,048,544 | / 13 | 255.248.0.0 | 8 B | 524,272 | / 14 | 255.252.0.0 | 4 B | 262,136 | / 15 | 255.254.0.0 | 이 B | 131,068 | / 16 | 255.255.0.0 | 1 B | 65,024 | / 17 | 255.255.128.0 | 128 C | 32,512 | / 18 | 255.255.192.0 | 64 C | 16,256 | / 19 | 255.255.224.0 | 32 C | 8128 | / 20 | 255.255.240.0 | 16 C | 4064 | / 21 | 255.255.248.0 | 8 C | 2032 | / 22 | 255.255.252.0 | 4 C | 1016 | / 23 | 255.255.254.0 | 2 C | 508 | / 24 | 255.255.255.0 | 1 C | 254 | / 25 | 255.255.255.128 | 이 서브넷 | 124 | / 26 | 255.255.255.192 | 4 서브넷 | 62 | / 27 | 255.255.255.224 | 8 서브넷 | 30 | / 28 | 255.255.255.240 | 16 서브넷 | 14 | / 29 | 255.255.255.248 | 32 서브넷 | 6 | / 30 | 255.255.255.252 | 64 서브넷 | 2 | / 31 | 255.255.255.254 | 없음 | 없음 | / 32 | 255.255.255.255 | 256분의 1 C | 일 |
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