05/06/06

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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