av12综合网国产东方av影院欧美av影院贾康澄清身份:我从来不是公务员 不代表官方观点

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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  張安世忽然大笑道︰“自從東郭咸陽,郭僅這些大商賈被桑弘羊整治過後,現在有商賈開始覬覦國朝的官位。他們無視東郭咸陽,郭僅的悲慘遭遇,只是覺得商賈應該為官,才能改變他們悲慘的命運。這些年他們扶持了很多貧家子進入官場,只可惜,這些貧家子一旦為官之後,就會迅速拋棄商賈,向勛貴們靠攏,即便是這樣,商賈們依舊樂此不疲。” av12综合网   甦稚看到丈夫眼中殺機大熾,不明白為什麼他僅僅听到江充這個名字就立刻有這麼大的反應,想要再勸誡一下,雲瑯已經離開了房間。国产东方av影院   “對我來說,沒有打罵的日子就是好日子,在家里沒人打罵我,每個人的笑臉都很暖和,除了丑庸總是說我長了一張狐媚子臉,每次她這樣說完,就會難過好長時間……嘻嘻,我跟小蟲都知道她想給您做妾……我一點都不生氣,看著她用麻布纏腰把自己纏的喘不上氣來了,我跟小蟲就快要笑死了。”   “永安侯說他與此人素不相識,只是听到這人的名字就心血來潮,欲殺之而後快,根本就不能自抑!”欧美av影院   她一邊吃核桃一邊對紅袖道︰“你就是一個傻子,人家喊你你就下去?知不知道啊,家主這時候一定沒懷好心,難道說你昨日里還沒被他輕薄夠麼?”
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