IP Address
IP address is a number given to each machine in the Network. In a Network it will be difficult to identify a machine by using their name. IP address provides a solution by giving a number to each machine in the Network.
IP address allows a host to communicate with another machine in the Network within any range. IP address consist of 32 bits of information, each bits are divided into 4 sections.
Ex. 172.16.30.56
Types of IP Classes
| Class A |
| Class B |
| Class C |
| Class D - Multi-casting Companies |
| Class E - Research |
Depending upon the host in the Network, IP address or range are picked, each and every class can hold only a specified hosts or computers.
| Class Type | Range | Subnet Masking | Network/host ID | ||||
| Class A | 1-126 | 255.0.0.0 |
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| Class B | 128-191 | 255.255.0.0 |
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| Class C | 192-223 | 255.255.255.0 |
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| Class D | 224-239 | Reserved for Multi-casting | |||||
| Class E | 240-255 | Reserved for experiments and Research |
Private IP
Private IP address can only be specified organization or large scale companies, these IP cannot used by public. The main purpose of Private IP is to provide highest possible security to the host machine.
These types of IP are used in high security needed organization such as Research, Military, Space Research or in some financial companies.