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→IPv4 Address Space & Notation
==IPv4 Address Space & Notation==
==IPv4 Address Space & Notation==
IP addresses are 32-bit binary numbers used as addresses in the IPv4 protocol. The three main types of IPv4 addresses are Public IP addresses, Private IP Networks and Global or Specialized IP Addresses <ref>[http://www.ripe.net/ripe/docs/ripe-509#----ipv--address-space www.ripe.net]</ref>
IP addresses are 32-bit binary numbers used as addresses in the IPv4 protocol. The three main types of IPv4 addresses are Public IP addresses, Private IP Networks and Global or Specialized IP Addresses.<ref>[http://www.ripe.net/ripe/docs/ripe-509#----ipv--address-space www.ripe.net]</ref>
IPv4 addresses uniquely identify every host computer connected to the Internet which is typically represented as four decimal numbers separated by dots, for example:202.16.208.51. A TCP/IP network routes a packet according to the destination IP address, an address provided by the IP protocol on the sending host. The network address (the part of the address that identifies a users network) and the host address (the part that identifies an individual host on a users network) must all fit into the 32-bit number. The number of hosts an internet user can configure for the network decreases as the length of the portion occupied by the network address increases.The Network Information Centers or [[NIC]]s (including the original InterNIC) assign network addresses for the IPv4-based Internet<ref>[http://uw713doc.sco.com/en/NET_tcpip/tcpC.ipv4.html IPv4 Header Format]</ref>
IPv4 addresses uniquely identify every host computer connected to the Internet which is typically represented as four decimal numbers separated by dots, for example:202.16.208.51. A TCP/IP network routes a packet according to the destination IP address, an address provided by the IP protocol on the sending host. The network address (the part of the address that identifies a users network) and the host address (the part that identifies an individual host on a users network) must all fit into the 32-bit number. The number of hosts an internet user can configure for the network decreases as the length of the portion occupied by the network address increases.The Network Information Centers or [[NIC]]s (including the original InterNIC) assign network addresses for the IPv4-based Internet<ref>[http://uw713doc.sco.com/en/NET_tcpip/tcpC.ipv4.html IPv4 Header Format]</ref>