在线观看视频亚洲电影吉吉影音先锋亚洲AV快讯:消费电子板块早盘再度走强 瀛通通讯直拉涨停

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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  霍去病見曹襄總是陰陽怪氣的,就笑道︰“祁連山下投降之後,此人在我逼迫下斬殺了四千多鼓噪不降的匈奴人,就再也沒有什麼悍勇之氣了。按照他的話說,從今後只求醉死大漢,再也不想踏足大漠,草原。三千封戶,五百甲士,全是他的親族,他只想保住自己的親族,至于其余匈奴人,他已經懇請陛下處置。賣了八萬帳同族,給他一個漯陰侯,以及五百甲士的榮耀,不算什麼。”   “給我!”在线观看视频亚洲电影   “李敢知道嗎?”吉吉影音先锋   這些事霍光是知道的……   曹襄道︰“勛貴說到底還是需要一些尊嚴的,不能像狗一樣揮之即來,呼之即去。我們什麼都不會做,听陛下發落就是,不管是什麼樣的雷霆雨露我們接著就是了。孩兒甚至做好了跟阿瑯學種地,跟去病學打獵的準備,總之不會餓死就是了。”亚洲AV   隋越低頭不語,他知道皇帝這是沒有跟他說話。
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