Created
April 23, 2019 17:45
-
-
Save mirzmaster/783451b36c9d7d1e47efe81be1b704ee to your computer and use it in GitHub Desktop.
CIDR Notation Cheatsheet
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
CIDR Total number Network Description: | |
Notation: of addresses: Mask: | |
-------------------------------------------------------------- | |
/0 4,294,967,296 0.0.0.0 Every Address | |
/1 2,147,483,648 128.0.0.0 128 /8 nets | |
/2 1,073,741,824 192.0.0.0 64 /8 nets | |
/3 536,870,912 224.0.0.0 32 /8 nets | |
/4 268,435,456 240.0.0.0 16 /8 nets | |
/5 134,217,728 248.0.0.0 8 /8 nets | |
/6 67,108,864 252.0.0.0 4 /8 nets | |
/7 33,554,432 254.0.0.0 2 /8 nets | |
/8 16,777,214 255.0.0.0 1 /8 net | |
-------------------------------------------------------------- | |
/9 8,388,608 255.128.0.0 128 /16 nets | |
/10 4,194,304 255.192.0.0 64 /16 nets | |
/11 2,097,152 255.224.0.0 32 /16 nets | |
/12 1,048,576 255.240.0.0 16 /16 nets | |
/13 524,288 255.248.0.0 8 /16 nets | |
/14 262,144 255.252.0.0 4 /16 nets | |
/15 131.072 255.254.0.0 2 /16 nets | |
/16 65,536 255.255.0.0 1 /16 | |
-------------------------------------------------------------- | |
/17 32,768 255.255.128.0 128 /24 nets | |
/19 16,384 255.255.192.0 64 /24 nets | |
/19 8,192 255.255.224.0 32 /24 nets | |
/20 4,096 255.255.240.0 16 /24 nets | |
/21 2,048 255.255.248.0 8 /24 nets | |
/22 1,024 255.255.252.0 4 /24 nets | |
/23 512 255.255.254.0 2 /24 nets | |
/24 256 255.255.255.0 1 /24 | |
-------------------------------------------------------------- | |
/25 128 255.255.255.128 Half of a /24 | |
/26 64 255.255.255.192 Fourth of a /24 | |
/27 32 255.255.255.224 Eighth of a /24 | |
/28 16 255.255.255.240 1/16th of a /24 | |
/29 8 255.255.255.248 5 Usable addresses | |
/30 4 255.255.255.252 1 Usable address | |
/31 2 255.255.255.254 Unusable | |
/32 1 255.255.255.255 Single host | |
-------------------------------------------------------------- |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment