| Klasy IPv4 | Bity | Notatka |
|---|---|---|
| A | 0xxxxxxx.xxxxxxxx.xxxxxxxxx.xxxxxxxxx (32b, 4 oktety) | 2^7 sieci, 2^24 hosts |
| B | 10xxxxxx.xxxxxxxx.xxxxxxxxx.xxxxxxxxx | 2^14, 2^16 hosts |
| C | 110xxxxx.xxxxxxxx.xxxxxxxxx.xxxxxxxxx | 2^21, 2^8 hosts |
| D | 1110xxxx.xxxxxxxx.xxxxxxxxx.xxxxxxxxx | 2^ |
| E | 1111xxxx.xxxxxxxx.xxxxxxxxx.xxxxxxxxx | 2^ |
Maska → definiuje co jest adresem sieci, a co adresem hostów. (ciąg jedynek i zer) (11111111.11111111.11100000.00000000) 32b
| Binarny | Dziesiętny |
|---|---|
| 11111111 | 255 |
| 11111110 | 254 |
| 11111100 | 252 |
| 11111000 | 248 |
| 11110000 | 240 |
| 11100000 | 224 |
| 1100000 | 192 |
| 1000000 | 128 |
| 0000000 | 0 |
Adres sieci (network) zawsze parzysty!
Broadcast zawsze nieparzysty!
| Adres binarny | Adres dziesiętny | |
|---|---|---|
| IP | 11000000.10101000.0000000 | .00000001 |
| M | 11111111.11111111.11111111 | .00000000 |
| N | 11000000.10101000.0000000 | .00000000 |
| B | 11000000.10101000.0000000 | .11111111 |
<aside>
Ilość IP = 256 = 2^8 = 2^(ilości zer w masce)
Ilość hostów = 254 = 256-N-B
</aside>
<aside>
| Adres binarny | Adres dziesiętny | |
|---|---|---|
| IP | 11000000.10101000.0000000.00 | 000001 |
| M | 11111111.11111111.11111111.11 | 000000 |
| N | 11000000.10101000.0000000.11 | 000000 |
| B | 11000000.10101000.0000000.11 | 111111 |
Ilość IP = 64 = 2^6
Ilość hostów = 62
Podziel adresy na 4 podsieci:
| Podsieć (N, B) | Adres |
|---|---|
| **N1 | |
| B1** | 192.168.0.0 |
| 192.168.0.63 | |
| **N2 | |
| B2** | 192.168.0.64 |
| 192.168.127 | |
| **N3 | |
| B3** | 192.168.0.128 |
| 192.168.0.191 | |
| **N4 | |
| B4** | 192.168.0.192 |
| 192.168.0.255 |
91.266.211.161/22
11111111.11111111.11111111.10000000
2^10
91.226.208.0
91.226.211.255
1024/256 = 4 zmiany na oktecie
91.226.211.161/25
91.226.208.0-91.226.208.127
91.226.208.128-91.226.208.255
91.226.209.0-91.226.209.127
91.226.209.128-91.226.209.255
91.226.210.0-91.226.210.127
91.226.210.128-91.226.210.255
91.226.211.0-91.226.211.127
91.226.211.128-91.226.211.255
10.11.12.13/14
/14=32-14=18
2^18=262144/256=1024/256=4
IP 10.000010 | 11.00001100.00001101
M 11111111.11111 | 00.000000.00000000
N 10.8.0.0
B 10.11.255.255
10.11.12.13/20
11111111.11111111.00000000.00000000
00001010.000010 | 11.0001100.00001101
10.8.0.0-10.11.255.255
10.11.12.13/14
1000IP 1024 4 /22 10.8.0.0-10.8.3.255
256IP 512 2 /23 10.8.4.0-10.8.5.255
100IP 128 /24 10.8.6.0-10.8.6.127
50IP 64 /26 10.8.6.128-10.8.6.191
10.11.12.13/14
50IP 64 /26 10.8.0.0-10.8.0.63/26
50IP 64 /26 10.8.0.64-10.8.0.127/26
100IP 128 /25 10.8.0.128-10.8.0.255
254IP 256 /24 10.8.1.0-18.8.1.255
256IP 512 2 /23 10.8.2.0-10.8.3.255
1000IP 1024 4 /22 10.8.4.0-10.8.7.255
10.8.8.0 - 10.8.15.255 /21
</aside>