Ip Address Essay

1430 Words 6 Pages
TOPIC:IP ADDRESS

Cyber Law & Information Security

The address of a computer on the Internet is commonly referred to as the IP Address (Internet Protocol). It's a 32 bit (4 bytes) number normally written as follows: xxx.xxx.xxx.xxx Since a byte can represent any number from zero to 255, the least and the maximum IP address possible are:
0.0.0.0 to 255.255.255.255

Understanding IP Addresses
Understanding IP Addressing is necessary, since all applications on the Internet generate logs, wherein IP Addresses of all interacting computers are recorded. The logs from a basis for investigation by investigating officers. The IP address has two parts - Network number and the Host number. Whereas the Network Number is assigned by an
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Class C network
If the numeric value of the first byte is between 192 and 223, it indicates that the IP Address belongs to a C Class network. For such addresses 1st, 2nd and the 3rd byte represents the network number, and the 4th byte represent the host number. Thus for the IP Address 196.124.103.45 the network number is 196.124.103 and the host number is 45. As is evident there can only be 20,97,152 (32x256x256) Class B networks, and each of them can support 256 terminals.

Class D and E networks
These networks are not available for commercial use. Their IP addresses start from 224.0.0.0. onwards. These networks are used for multicast groups or for research purposes. The four byte IP Address does not follow the above scheme of addressing. As is evident from above, there is a finite number of computers that can be on the Internet at given point of time. Each IP Address is valued. Hence casual users of the Internet are not given a permanent IP Address.

Static IP Address
Under this scheme, Computers are assigned a permanent IP Address. The address remains the same when ever the computer logs on to the Internet.

Dynamic IP Address
Casuals users of the Internet are assigned IP Addresses as and when they log on. In such cases the ISP(Internet Service Provider) provides an available IP address for the session (till the user logs off or connection is broken) as

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