亚洲偷偷自拍高清无码综合图片亚洲网友自拍在线自拍在线偷拍视频多部委表态 2.86亿“漂泊族”离就地落户越来越近

We are responsible for global coordination of the Internet Protocol addressing systems, as well as the Autonomous System Numbers used for routing Internet traffic.

Currently there are two types of Internet Protocol (IP) addresses in active use: IP version 4 (IPv4) and IP version 6 (IPv6). IPv4 was initially deployed on 1 January 1983 and is still the most commonly used version. IPv4 addresses are 32-bit numbers often expressed as 4 octets in “dotted decimal” notation (for example, 192.0.2.53). Deployment of the IPv6 protocol began in 1999. IPv6 addresses are 128-bit numbers and are conventionally expressed using hexadecimal strings (for example, 2001:0db8:582:ae33::29).

Both IPv4 and IPv6 addresses are generally assigned in a hierarchical manner. Users are assigned IP addresses by Internet service providers (ISPs). ISPs obtain allocations of IP addresses from a local Internet registry (LIR) or National Internet Registry (NIR), or from their appropriate Regional Internet Registry (RIR):

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  當時,沒人信竇嬰會這麼干,陛下那時候剛剛真正的親政,他說的話被大臣懷疑,認為是皇家銷毀了存檔,是要致竇嬰為死地,是皇家設計殺人,還有人說皇家說話不算數,如此之後,還有誰敢拿著遺詔來論事?   給雲瑯的信就寫的很長,在信里,長平將她知道的關于何愁有的消息以及傳說,事無巨細寫的非常詳細。亚洲偷偷自拍高清无码   公孫敖抖抖裘衣道︰“如果大帥肯給末將一支兵馬,末將可以繼續追擊伊秩斜。”综合图片亚洲网友自拍   劉徹苦笑了一聲道︰“白登山打的不可開交,五路大軍又出了邊關,兩年的積存自然被用的空空如也。”   郭解听完雲瑯的三個有利于之後,原本如同死灰一般的臉上,頓時就有了神采。在线自拍在线偷拍视频   雲瑯皺眉道︰“不是因為尚書監沒有找到存檔文書麼?”
Map of RIRs
RegistryArea Covered
AFRINICAfrica Region
APNICAsia/Pacific Region
ARINCanada, USA, and some Caribbean Islands
LACNICLatin America and some Caribbean Islands
RIPE NCCEurope, the Middle East, and Central Asia

Our primary role for IP addresses is to allocate pools of unallocated addresses to the RIRs according to their needs as described by global policy and to document protocol assignments made by the IETF. When an RIR requires more IP addresses for allocation or assignment within its region, we make an additional allocation to the RIR. We do not make allocations directly to ISPs or end users except in specific circumstances, such as allocations of multicast addresses or other protocol specific needs.

IP Address Allocations

Internet Protocol Version 4 (IPv4)

Internet Protocol Version 6 (IPv6)

Autonomous System Number Allocations

Procedures

Regional Internet Registry Creation

Technical Documentation