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- IPv4_subnetting_reference abstract "In the IPv4 address space certain address blocks are specially allocated or reserved for special uses such as loopback interfaces, private networks (RFC 1918), and state-less autoconfiguration (Zeroconf, RFC 3927) of interfaces. Such addresses may be used without registration or allocation from Regional Internet Registries (RIRs). However, these address ranges must not be routed into the public Internet infrastructure.The netmask is a bitmask that can be used to separate the bits of the network identifier from the bits of the host identifier. It is often written in the same notation used to denote IP addresses.Not all sizes of prefix announcement may be routable on the public Internet: see routing, peering.The blocks numerically at the start and end of classes A, B and C were originally reserved for special addressing or future features, i.e., 0.0.0.0/8 and 127.0.0.0/8 are reserved in former class A; 128.0.0.0/16 and 191.255.0.0/16 were reserved in former class B but are now available for assignment; 192.0.0.0/24 and 223.255.255.0/24 are reserved in former class C.While the 127.0.0.0/8 network is a Class A network, it is designated for loopback and cannot be assigned to a network.See (RFC 5735 Special Use IPv4 Addresses)In common usage, the \"host all zeros\" address is reserved for referring to the entire network, while the \"host all ones\" address is used as a broadcast address in the given subnet; this reduces the number of addresses available for hosts by 2. This explains the reference to /31 networks as \"Rarely Used,\" as the only possible addresses on a /31 network are \"host all ones\" and \"host all zeros.\" RFC 3021 creates an exception to the \"host all ones\" and \"host all zeros\" broadcast usage to make /31 networks usable for point-to-point links. In practice, however, point-to-point links are still typically implemented using /30 networks, or occasionally by /32 and point-to-point explicit host routes. There is generally no technical advantage to /31 versus /32, although one or the other may be more convenient based on other issues. A /30 is always wasteful and has as its sole advantage that it behaves \"as expected\" for any other subnetwork.".
- IPv4_subnetting_reference wikiPageID "291784".
- IPv4_subnetting_reference wikiPageLength "6067".
- IPv4_subnetting_reference wikiPageOutDegree "25".
- IPv4_subnetting_reference wikiPageRevisionID "705328835".
- IPv4_subnetting_reference wikiPageWikiLink Bit.
- IPv4_subnetting_reference wikiPageWikiLink Broadcast_address.
- IPv4_subnetting_reference wikiPageWikiLink Category:IPv4.
- IPv4_subnetting_reference wikiPageWikiLink Category:Internet_architecture.
- IPv4_subnetting_reference wikiPageWikiLink Category:Network_addressing.
- IPv4_subnetting_reference wikiPageWikiLink Classless_Inter-Domain_Routing.
- IPv4_subnetting_reference wikiPageWikiLink IP_address.
- IPv4_subnetting_reference wikiPageWikiLink IPv4.
- IPv4_subnetting_reference wikiPageWikiLink IPv6_subnetting_reference.
- IPv4_subnetting_reference wikiPageWikiLink Internet_Assigned_Numbers_Authority.
- IPv4_subnetting_reference wikiPageWikiLink Internet_service_provider.
- IPv4_subnetting_reference wikiPageWikiLink Local_area_network.
- IPv4_subnetting_reference wikiPageWikiLink Loopback.
- IPv4_subnetting_reference wikiPageWikiLink Mask_(computing).
- IPv4_subnetting_reference wikiPageWikiLink Peering.
- IPv4_subnetting_reference wikiPageWikiLink Private_network.
- IPv4_subnetting_reference wikiPageWikiLink Regional_Internet_registry.
- IPv4_subnetting_reference wikiPageWikiLink Routing.
- IPv4_subnetting_reference wikiPageWikiLink Subnetwork.
- IPv4_subnetting_reference wikiPageWikiLink Zero-configuration_networking.
- IPv4_subnetting_reference wikiPageWikiLinkText "/8 blocks".
- IPv4_subnetting_reference wikiPageWikiLinkText "IP range".
- IPv4_subnetting_reference wikiPageWikiLinkText "IPv4 subnetting reference".
- IPv4_subnetting_reference wikiPageWikiLinkText "IPv4".
- IPv4_subnetting_reference wikiPageUsesTemplate Template:Citation_needed.
- IPv4_subnetting_reference wikiPageUsesTemplate Template:Reflist.
- IPv4_subnetting_reference subject Category:IPv4.
- IPv4_subnetting_reference subject Category:Internet_architecture.
- IPv4_subnetting_reference subject Category:Network_addressing.
- IPv4_subnetting_reference type Identifier.
- IPv4_subnetting_reference type Protocol.
- IPv4_subnetting_reference type Redirect.
- IPv4_subnetting_reference comment "In the IPv4 address space certain address blocks are specially allocated or reserved for special uses such as loopback interfaces, private networks (RFC 1918), and state-less autoconfiguration (Zeroconf, RFC 3927) of interfaces. Such addresses may be used without registration or allocation from Regional Internet Registries (RIRs).".
- IPv4_subnetting_reference label "IPv4 subnetting reference".
- IPv4_subnetting_reference sameAs Q1245638.
- IPv4_subnetting_reference sameAs Subnetzmaske.
- IPv4_subnetting_reference sameAs Màscara_de_xarxa.
- IPv4_subnetting_reference sameAs Maska_sítě.
- IPv4_subnetting_reference sameAs Netzmaske.
- IPv4_subnetting_reference sameAs Máscara_de_red.
- IPv4_subnetting_reference sameAs Azpisare-maskara.
- IPv4_subnetting_reference sameAs Subnet_mask.
- IPv4_subnetting_reference sameAs Masker_subjaringan.
- IPv4_subnetting_reference sameAs Subnet_mask.
- IPv4_subnetting_reference sameAs サブネットマスク.
- IPv4_subnetting_reference sameAs Маска_(интернет).
- IPv4_subnetting_reference sameAs Netmask.
- IPv4_subnetting_reference sameAs Maska_podsieci.
- IPv4_subnetting_reference sameAs Máscara_de_rede.
- IPv4_subnetting_reference sameAs m.01qp4t.
- IPv4_subnetting_reference sameAs Маска_подсети.
- IPv4_subnetting_reference sameAs Maska_podsiete.
- IPv4_subnetting_reference sameAs Alt_ağ_maskesi.
- IPv4_subnetting_reference sameAs Маска_підмережі.
- IPv4_subnetting_reference sameAs Q1245638.
- IPv4_subnetting_reference wasDerivedFrom IPv4_subnetting_reference?oldid=705328835.
- IPv4_subnetting_reference isPrimaryTopicOf IPv4_subnetting_reference.