IP stands for Internet Protocol. It is an Internet Protocol address. An Internet Protocol is a set of rules used to perform Internet activity and carryout variety of actions on the World Wide Web. A IP addressed may consists of 4 numbers; and each number has three digits, all four numbers are separated with a single dot. The four numbers have a specified range from 0 to 255. The numeric protocol is very much important for any activity worldwide. Without any numeric protocols, receiving and sending data over the World's Wide Webs wouldn't be that unworkable. IP address maybe either dynamic or static. Static type of IP address do not change. The IP address was originally arranged by classes. There are five Classes of IP Address. In the addresses and classes determined some potential sizes of networks.

Every machine that uses internet has a unique IP address. The IP address basically is in binary form but it is converted to decimal for human usage. The Classes of IP Address determines which part of the IP belongs to the network address and which part belongs to the node address. There are five main classes of IP Class A-Class E. the class A is for very large networks. The first number of the IP ranges from 1 to 128 digits. The networks associated with class A of the IP account for the half of the total available IP's. Class B is used for medium size networks. The first octet ranges from 128 to 191. There is also a second octet in class B which is used as net identifier. Both the octets together operate for the internet connections. Class C is used in small to midsized business. The IP address of the first octet ranges from 192 to 223. The second and third octet is included in the class C. the third octet of the IP is used to identify the host.

Class D is used for the multicasts. The Class D is a bit different from the first three classes. It includes four octets. The first, second, third bit value is 1, where as the fourth bit is 0.there is a total of 28 bits used for the identification of the system. The Class E is till now just used for the experimental purposes. As class D the Class E is also varied from the first three classes. The bit values of first, second, third and fourth bit is 1. The Classes of IP Address are very helpful and are organized in such a manner that everyone could get the thing one wants.