|
IP Addressing
Each IP address contains 32 bits
or 4 octets.
200.148.12.188 is an example of IP
address.
The IP address is represented by
four dot separated numbers (0 to 255).
Internet
Address Standard (IPv4)
| |
|
IP
Address |
| Class A |
Begin |
1 |
0 |
0 |
0 |
| End |
126 |
255 |
255 |
254 |
| |
net |
host |
host |
host |
| Mask |
255 |
0 |
0 |
0 |
| |
| Class B |
Begin |
128 |
0 |
0 |
0 |
| End |
191 |
255 |
255 |
254 |
| |
net |
net |
host |
host |
| Mask |
255 |
255 |
0 |
0 |
| |
| Class C |
Begin |
192 |
0 |
0 |
0 |
| End |
223 |
255 |
255 |
254 |
| |
net |
net |
net |
host |
| Mask |
255 |
255 |
255 |
0 |
Series initiated by the number 127
are reserved for internal tests.
Class D: 224.0.0.0 to 239.255.255.255,
dedicated to multicast.
Class E: other numbers reserved for
future use.
IP addresses recommended to private
internets
10.0.0.0 to 10.255.255.255
172.16.0.0 to 172.31.255.255
192.168.0.0 to 192.168.255.255
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