CIDR määräytyy rfc1878 standardin mukaisesti.
Subnetmask | CIDR |
|---|---|
128.0.0.0 | 1 |
192.0.0.0 | 2 |
224.0.0.0 | 3 |
240.0.0.0 | 4 |
248.0.0.0 | 5 |
252.0.0.0 | 6 |
254.0.0.0 | 7 |
255.0.0.0 | 8 |
255.128.0.0 | 9 |
255.192.0.0 | 10 |
255.224.0.0 | 11 |
255.240.0.0 | 12 |
255.248.0.0 | 13 |
255.252.0.0 | 14 |
255.254.0.0 | 15 |
255.255.0.0 | 16 |
255.255.128.0 | 17 |
255.255.192.0 | 18 |
255.255.224.0 | 19 |
255.255.240.0 | 20 |
255.255.248.0 | 21 |
255.255.252.0 | 22 |
255.255.254.0 | 23 |
255.255.255.0 | 24 |
255.255.255.128 | 25 |
255.255.255.192 | 26 |
255.255.255.224 | 27 |
255.255.255.240 | 28 |
255.255.255.248 | 29 |
255.255.255.252 | 30 |
255.255.255.254 | 31 |
255.255.255.255 | 32 |