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In the Internet addressing architecture, the Internet Engineering Task Force (IETF) and the Internet Assigned Numbers Authority (IANA) have reserved various Internet Protocol (IP) addresses for special purposes.
Learn what reserved IP addresses are, why they are important, and how they are categorized. Find out the functions and examples of private, loopback, link-local, multicast, broadcast, and special use IP addresses.
19 sie 2009 · The IETF has reserved the address block of 192.0.0.0/24 for use for special purposes relating to protocol assignments. This registry contains the current assignments made by the IETF from this address block.
12 lip 2023 · The most common reserved IP address you'll come across is 127.0.0.1. This is called a loopback address and is used to test the network adaptor inside a device. Any traffic going to 127.0.0.1 is sent over a local network or the internet.
Learn about the special purpose and non-routable IPv4 address spaces, such as private, loopback and link-local addresses. Find out how they are used, subnetted and configured within a network or a host system.
A public IP address is a globally routable unicast IP address, meaning that the address is not an address reserved for use in private networks, such as those reserved by RFC 1918, or the various IPv6 address formats of local scope or site-local scope, for example for link-local addressing. Public IP addresses may be used for communication ...
In the case of the IPv4 address space, the IANA allocates parts of the address space to Regional Internet Registries (RIRs) according to their established needs. These RIRs are responsible for the registration of IPv4 addresses to operators and users of the Internet within their regions.
