青青草视频青青青视频在线观看青青草在线明星球员比赛当场“爆鞋” 耐克品牌将受何影响?

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):

發布時間︰

  “我只到太原府。”曹襄的臉有些紅。   阿嬌說著話,就趴在劉徹的胸口上閉著眼楮道︰“我經常想啊,你不是在建章宮里,而是帶著千軍萬馬去跟匈奴作戰去了。我就是一個等待夫君歸來的女子……等待良人歸來那一刻,眼淚為你歌唱……驕傲的淚不敢潤濕我眼楮,在我離你遠去哪一天……”青青草视频   這三個字不僅僅是一種稱謂,更是一種官職,還是大漢國最清貴的職位。青青青视频在线观看   羽林軍卒連連點頭,覺得司馬說的很在理,羽林軍沒有接到護衛的職責,貿然出去反而不美。   老虎趴在雲瑯身邊,似乎有些哀愁。青青草在线   匈奴人呵呵出聲,掙扎了兩下,就無力地倒地。
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