This number is an exclusive number all information technology devices(printers, routers, modems, etc) use which identifies and enables them the capability to connect with every other over a computer network. There is a standard of communication that is named an Internet Protocol standard (IP). In laymans terms it is the exact as your home address. In order for your case to obtain snail mail at home, the sending party should have your right mailing address(IP address) inside your city (network) or you do not obtain bills, pizza discounts or your taxes refund. Exactly the same is accurate for all equipment in the internet. Without this particular address, info cannot be received. IP addresses might possibly be assigned permanently for an Email server/Business server or even a long term home resident or temporarily, from a pool of available addresses (first come first serve) from your Internet Service Provider(ISP). A permanent number might not be obtainable in all areas and might cost extra, so be sure to ask your ISP.
Domain Name System (DNS): This permits the IP address to be translated to words. It is a great deal less difficult for us to remember a term than a sequence of numbers. Exactly the same is accurate for e-mail addresses.
For example, it is much easier for you to remember a web address name such as www.dailyproxylists.com than it is to remember 126.96.36.199.
IP version 4: Currently used by most network devices. IPv4 uses 32-bit (four-byte) addresses, which limits the address space to 4,294,967,296 possible unique addresses. However, with more and more clients accessing the internet, IPv4 addresses are running out quickly. Just like inside a city, addresses must be created for new neighborhoods but, if your neighborhood gets too large, you will must come up with a totally new pool of addresses.
IP version 6: Designed to succeed Internet Protocol version 4 (IPv4). The estimated number of unique addresses for IPv6 is 340,282,366,920,938,463,463,374,607,431,768,211,456 or 2^128.
IPv6 implements extra features not present in IPv4. It simplifies aspects of address assignment (stateless address auto configuration) and network renumbering (prefix and router announcements) when changing Internet connectivity providers. Network security is also integrated into the design of the IPv6 architecture, and the IPv6 specification mandates support for IPsec as a fundamental interoperability requirement. The IPv6 subnet size has been standardized by fixing the size of the host identifier portion of an address to 64 bits to facilitate an automatic mechanism for forming the host identifier from link layer media addressing information (MAC address).