亚洲巨乳自拍在线视频偷拍自拍图偷拍自拍电影当当网法人变更:李国庆退出 董事长俞渝接任

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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  曹襄把紅腫的手塞進冰水里問雲瑯。   “正是如此,他認識字卻無人教導他字中含義。”亚洲巨乳自拍在线视频   雲瑯嘿嘿笑道︰“既然如此,明日里,就開始讓家里最忠心的僕婦們開始制作蠶絲被,這些人以為把持了染坊就能讓我投降,真是白日做夢!”偷拍自拍图 第八十八章 利益者鄙   因此雲瑯天剛亮就起來了,推推依舊在酣睡的甦稚,見她哼哼兩聲轉了身又睡著了,雲瑯搖搖頭,清晨有些涼,就給她蓋好毯子,自己輕手輕腳的下了樓。偷拍自拍电影   大漢的染料都是來自大自然……如何調配,如何浸染,甚至對于水溫,浸泡時間都有嚴格的要求,這些,都是不是雲氏這樣的新興家族所能染指的。
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