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Provider-independent address space : ウィキペディア英語版 | Provider-independent address space A provider-independent address space (PI) is a block of IP addresses assigned by a regional Internet registry (RIR) directly to an end-user organization.〔(RIPE FAQs )〕 The user must contract with an Internet service provider to obtain routing of the address block within the Internet. Provider-independent addresses offer end-users the opportunity to change service providers without renumbering of their networks and to use multiple access providers in a multi-homed configuration. However, provider-independent blocks may increase the burden on global routers, as the opportunity for efficient route aggregation through Classless Inter-Domain Routing (CIDR) may not exist. ==IPv6 assignments== In April 2009 RIPE accepted a policy proposal of January 2006 to assign IPv6 provider-independent IPv6 prefixes. Assignments are taken from the address range 2001:678::/29〔(Address Space Managed by the RIPE NCC - Special Purpose Ranges )〕 and have a minimum size of a /48 prefix.〔(IPv6 Provider Independent (PI) Assignments )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Provider-independent address space」の詳細全文を読む
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