WHAT IS IP ADDRESS
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An Internet Protocol (IP) address is a unique identifier for a node or host connection on an IP network. An IP address is a 32 bit binary number usually represented as 4 decimal values, each representing 8 bits, in the range 0 to 255 known as octets separated by decimal points. This is known as dotted decimal notation.
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IP Address stands for Internet Protocol Address and all devices on the network have an IP Address assigned to it. An IP address is made up of 4 numbers in the following format: XXX.XXX.XXX.XXX. Each number can be in the range of 0-255. An IP address is defined as "a numerical label assigned to each devices participating in a computer network that uses Internet Protocol for communication". When computers communicate with each other over the Internet or via a local network, the information sharing is done through IP addresses.
There are five classes of available IP ranges
Class A • 1.0.0.1 to 126.255.255.254 - Supports 16 million hosts on each of 127 networks.
Class B • 128.1.0.1 to 191.255.255.254 - Supports 65,000 hosts on each of 16,000 networks.
Class C • 192.0.1.1 to 223.255.254.254 - Supports 254 hosts on each of 2 million networks.
Class D • 224.0.0.0 to 239.255.255.255 - Reserved for multicast groups.
Class E • 240.0.0.0 to 254.255.255.254 - Reserved for future uses, or Research and Development Purposes.
Static And Dynamic
Static • means the IP address never changes as long as you stay with the same provider or same server. Static IP addresses are fixed to the specific device. Static IP addresses are manually assigned by an administrator. Static IP addresses are generally preferable for such uses as Voice over Internet Protocol (VOIP), online gaming, or any other purpose where users need to make it easy for other computers to locate and connect to them.
Dynamic • means the IP address can change from time-to-time. Dynamic IP addresses are assigned by a server using Dynamic Host Configuration Protocol (DHCP). Dynamic IP addresses are temporary and can change each time the device connects to the internet.
This frees the ISP from recording the specific IP address for each device and also enables it to service more customers with fewer IP addresses. In terms of privacy for the end computer users, there is little practical difference between static IP address or dynamic IP address as ISPs are required to keep logs of their customers' internet activities.
Public And Private
Public • means the IP address can be visited from any computer in the world. A public IP address is any valid address, or number, that can be accessed over the Internet. Internet standards groups, such as the Network Information Center (NIC) or the Internet Assigned Numbers Authority (IANA), are the organizations responsible for registering IP ranges and assigning them to organizations, such as Internet Service Providers (ISPs). In the Cloud(n) system, a public IP address is an identifier assigned to a virtual router on the network. Any resources that will be available over the Internet will require a public IP address. Public IP addresses can be added in the Cloud Console.
Private • means the IP address can only be used by those on the same network. A private IP address is any number or address assigned to a device on a private TCP/IP Local Area Network that is accessible only within the Local Area Network. For a resource inside the Local Area Network to be accessible over the Internet, a device within the Local Area Network must be connected to the Internet with a public IP address, and the networking must be appropriately configured.
Three IP address reserved for private networks ranges that will never be registered in public networks
From 10.0.0.0 to 10.255.255.255 - Total Addresses: 16,777,216
From 172.16.0.0 to 172.31.255.255 - Total Addresses: 1,048,576
From 192.168.0.0 to 192.168.255.255 - Total Addresses: 65,536
Shared And Dedicated
Shared • means other people use your IP address for their connection or websites. Shared IP address, one IP address is assigned to several domains. Disadvantages surrounding shared IP address range from accessing the domain only by the domain name and search engine optimization (SEO) ranking. Shared IP address means that multiple websites share the same address. Web servers can determine by the domain entered in a user's browser which website is being requested. Typing in the IP address will bring you to some kind of generic page instead of the specific site you want.
Dedicated • means no one else uses your IP address for their connection or websites. Dedicated IP address, one IP address is assigned to one domain. To access a domain, you can use either the IP address or domain name. Dedicated IP address means that a website has its own IP address. Whether you type in your URL or the numeric form of its IP address, both will bring you to the same domain.
